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Instrument Function

R&S

®

SMF100A

270

Operating Manual 1167.2319.02 ─ 12

5.5.7 Chirp Modulation

Chirp modulation is used in radar technique to achieve pulse compression. Pulse com-
pression increases the sensitivity and resolution of radar systems by modifying trans-
mitted pulses to improve their auto-correlation properties. To chirp the radar signal is
one way of accomplishing pulse compression. A chirp is a signal with increasing or
decreasing frequency over time.

The R&S

 

SMF always couples the chirp modulation with the pulse modulation. It gen-

erates the modulation signals for FM and pulse modulator, and synchronizes the sig-
nals internally. The internal pulse generator signal is the modulation source for the
pulse modulator, and the internal LF generator signal is the signal source for the fre-
quency modulation. Normal FM mode is used. Using external modulation signals is not
possible for chirp modulation.

The following graph shows the FM demodulated signal of chirped pulses with a chirp
bandwidth of 80

 

MHz and a pulse width of 80

 

µs. Chirp direction is up.

Chirp modulation is available for the basic unit (R&S

 

SMF + frequency option

R&S

 

SMF-B10x) equipped with option R&S

 

SMF-B20 (AM/FM/PHIM/LOG AM Modula-

tor), R&S

 

SMF-K3 (Narrow Pulse Modulator) and R&S

 

SMF-K23 (Pulse Generator).

The PULSE IN connector at the rear of the instrument this connector can be used as
external trigger or gate signal input.

The polarity and input impedance of the connector can be selected.

The pulse signal is output at the PULSE OUT connector at the rear of the instrument,
the sync signal at the SYNC output.

The FM modulation signal can be output at the LF connector.

 

Modulation

Содержание SMF-B1

Страница 1: ...R S SMF100A Microwave Signal Generator Operating Manual Operating Manual 1167 2319 02 12 ÑGC2 Test Measurement ...

Страница 2: ... of the R S SMF100A 2016 Rohde Schwarz GmbH Co KG Mühldorfstr 15 81671 München Germany Phone 49 89 41 29 0 Fax 49 89 41 29 12 164 Email info rohde schwarz com Internet www rohde schwarz com Subject to change Data without tolerance limits is not binding R S is a registered trademark of Rohde Schwarz GmbH Co KG Trade names are trademarks of their owners The following abbreviations are used throughou...

Страница 3: ...se of the product The product is used for its designated purpose if it is used in accordance with its product documentation and within its performance limits see data sheet documentation the following safety instructions Using the product requires technical skills and in some cases a basic knowledge of English It is therefore essential that only skilled and specialized staff or thoroughly trained ...

Страница 4: ...ration item 7 Signal words and their meaning The following signal words are used in the product documentation in order to warn the reader about risks and dangers Indicates a hazardous situation which if not avoided will result in death or serious injury Indicates a hazardous situation which if not avoided could result in death or serious injury Indicates a hazardous situation which if not avoided ...

Страница 5: ...safety is not observed either at all or to the extent necessary electric shock fire and or serious personal injury or death may occur 1 Prior to switching on the product always ensure that the nominal voltage setting on the product matches the nominal voltage of the mains supply network If a different voltage is to be set the power fuse of the product may have to be changed accordingly 2 In the ca...

Страница 6: ...st be fuse protected in such a way that anyone who has access to the product as well as the product itself is adequately protected from injury or damage 14 Use suitable overvoltage protection to ensure that no overvoltage such as that caused by a bolt of lightning can reach the product Otherwise the person operating the product will be exposed to the danger of an electric shock 15 Any object that ...

Страница 7: ...e masks and protective clothing must be worn 7 Laser products are given warning labels that are standardized according to their laser class Lasers can cause biological harm due to the properties of their radiation and due to their extremely concentrated electromagnetic power If a laser product e g a CD DVD drive is integrated into a Rohde Schwarz product absolutely no other settings or functions m...

Страница 8: ...ackaging until they are ready to be used 4 Cells and batteries must not be exposed to any mechanical shocks that are stronger than permitted 5 If a cell develops a leak the fluid must not be allowed to come into contact with the skin or eyes If contact occurs wash the affected area with plenty of water and seek medical aid 6 Improperly replacing or charging cells or batteries that contain alkaline...

Страница 9: ... National waste disposal regulations must be observed 4 If handling the product releases hazardous substances or fuels that must be disposed of in a special way e g coolants or engine oils that must be replenished regularly the safety instructions of the manufacturer of the hazardous substances or fuels and the applicable regional waste disposal regulations must be observed Also observe the releva...

Страница 10: ...bien las informaciones de seguridad elementales así como la documentación del producto y entréguelas a usuarios posteriores Tener en cuenta las informaciones de seguridad sirve para evitar en lo posible lesiones o daños por peligros de toda clase Por eso es imprescindible leer detalladamente y comprender por completo las siguientes informaciones de seguridad antes de usar el producto y respetarlas...

Страница 11: ...raves o incluso la muerte Indica una situación de peligro que si no se evita puede causar lesiones graves o incluso la muerte Indica una situación de peligro que si no se evita puede causar lesiones leves o moderadas Indica información que se considera importante pero no en relación con situaciones de peligro p ej avisos sobre posibles daños materiales En la documentación del producto se emplea de...

Страница 12: ...mentación del producto o en la hoja de datos En caso de sobrecalentamiento del producto pueden producirse choques eléctricos incendios y o lesiones graves con posible consecuencia de muerte Seguridad eléctrica Si no se siguen o se siguen de modo insuficiente las indicaciones del fabricante en cuanto a seguridad eléctrica pueden producirse choques eléctricos incendios y o lesiones graves con posibl...

Страница 13: ...60950 1 EN60950 1 o IEC61010 1 EN 61010 1 válidos en cada caso 11 A menos que esté permitido expresamente no retire nunca la tapa ni componentes de la carcasa mientras el producto esté en servicio Esto pone a descubierto los cables y componentes eléctricos y puede causar lesiones fuego o daños en el producto 12 Si un producto se instala en un lugar fijo se deberá primero conectar el conductor de p...

Страница 14: ... manipulación mecánica y o térmica o el desmontaje del producto debe tenerse en cuenta imprescindiblemente el capítulo Eliminación protección del medio ambiente punto 1 5 Ciertos productos como p ej las instalaciones de radiocomunicación RF pueden a causa de su función natural emitir una radiación electromagnética aumentada Deben tomarse todas las medidas necesarias para la protección de las mujer...

Страница 15: ...to a las baterías y acumuladores o celdas pueden producirse explosiones incendios y o lesiones graves con posible consecuencia de muerte El manejo de baterías y acumuladores con electrolitos alcalinos p ej celdas de litio debe seguir el estándar EN 62133 1 No deben desmontarse abrirse ni triturarse las celdas 2 Las celdas o baterías no deben someterse a calor ni fuego Debe evitarse el almacenamien...

Страница 16: ... sin clasificar sino que debe ser recogido por separado La eliminación se debe efectuar exclusivamente a través de un punto de recogida apropiado o del servicio de atención al cliente de Rohde Schwarz 2 Los dispositivos eléctricos usados no se deben desechar con los residuos domésticos sin clasificar sino que deben ser recogidos por separado Rohde Schwarz GmbH Co KG ha elaborado un concepto de eli...

Страница 17: ...rument up to date and to be informed about new application notes related to your instrument please send an e mail to the Customer Support Center stating your instrument and your wish We will take care that you will get the right information Europe Africa Middle East Phone 49 89 4129 12345 customersupport rohde schwarz com North America Phone 1 888 TEST RSA 1 888 837 8772 customer support rsa rohde...

Страница 18: ...Rotary Knob and Navigation Keys 21 2 1 7 Front Panel Connectors 22 2 2 Rear Panel Tour 24 2 2 1 Description of the Connectors 24 2 3 Putting into Operation 27 2 3 1 EMI Suppression 29 2 3 2 Unpacking and Checking the Instrument 29 2 3 3 Placing or Mounting the Instrument 29 2 3 4 Connecting the Instrument to the AC Supply 31 2 3 5 Starting the Instrument 31 2 3 5 1 Standby and Ready state 32 2 3 5...

Страница 19: ...2 1 IP Configuration 51 2 8 2 2 Advanced LAN Configuration 51 2 8 2 3 Ping Client 52 2 8 2 4 Web Control 53 2 8 2 5 SCPI Remote Trace 55 3 Getting Started 57 3 1 Brief Introduction to the Instrument s Concept 57 3 2 Application Field of the Instrument 59 3 3 Description of Individual Diagram Blocks 60 3 4 Example of Setup 62 4 Manual Operation 71 4 1 Key Features 71 4 2 Display 75 4 2 1 Settings D...

Страница 20: ...5 Editors 88 4 5 1 Working with List Editor 88 4 6 How to Use the Help System 90 4 7 File Management 91 4 7 1 File Select Dialog 93 4 7 2 File Manager 94 4 7 2 1 Extensions for User Files 95 4 8 Legend of Front Panel Controls 95 4 8 1 Front Panel Key Emulation 97 5 Instrument Function 98 5 1 Overview of Instrument Functions 98 5 2 General Instrument Settings 100 5 2 1 Overview of General Instrumen...

Страница 21: ...Factory Preset 132 5 2 3 22 Help 133 5 2 4 Switching to Manual Control Local Key 133 5 2 5 Generating a Hard Copy of the Display 134 5 2 5 1 Hard Copy Settings 135 5 2 5 2 Hardcopy Options 136 5 2 6 Messages Info Key 137 5 2 7 Help System Help Key 137 5 2 8 Storing and Loading Instrument Data File Key 139 5 2 8 1 Save Recall Menu 140 5 2 8 2 Storing Instrument Settings 140 5 2 8 3 Loading Instrume...

Страница 22: ... 2 RF Frequency Sweep 161 5 3 6 List Mode 170 5 3 6 1 List Mode Dialog 171 5 3 6 2 Filling the List Mode Data automatically 178 5 4 RF Level 179 5 4 1 Overview of RF Level 179 5 4 1 1 RF level vs RF output level 180 5 4 1 2 Setting the RF level 180 5 4 2 RF Level Dialog 180 5 4 2 1 Level Settings 181 5 4 2 2 User Variation 182 5 4 2 3 External Level Adjustment 183 5 4 3 Power On EMF Settings 183 5...

Страница 23: ...Modulation Settings 257 5 5 3 Frequency Modulation FM 259 5 5 3 1 Frequency Modulation Settings 259 5 5 4 Phase Modulation PhiM 262 5 5 4 1 Phase Modulation Dialog 262 5 5 5 Digital Modulation 265 5 5 5 1 Digital Modulation Menu 265 5 5 6 Pulse Modulation PM 267 5 5 6 1 Pulse Modulation Settings 267 5 5 7 Chirp Modulation 270 5 5 7 1 Chirp Modulation Settings 271 5 6 Modulation Generator Pulse Gen...

Страница 24: ...nterface 311 6 1 5 Serial Interface 312 6 1 6 GPIB Interface IEC IEEE Bus Interface 312 6 1 6 1 GPIB Interface Messages 313 6 1 6 2 GPIB Instrument Address 314 6 1 7 LXI Browser Interface 314 6 2 Starting a Remote Control Session 315 6 2 1 Switching to Remote Control 315 6 2 2 Returning to Manual Operation 316 6 2 3 Examples 316 6 2 3 1 Remote Control over GPIB 317 6 2 3 2 Remote Control over LAN ...

Страница 25: ...Status Register 341 6 5 3 Status Byte STB and Service Request Enable Register SRE 343 6 5 4 Event Status Register ESR and Event Status Enable Register ESE 344 6 5 5 Questionable Status Register STATus QUEStionable 344 6 5 6 Operation Status Register STATus OPERation 345 6 5 7 Application of the Status Reporting System 345 6 5 7 1 Service Request 345 6 5 7 2 Serial Poll 346 6 5 7 3 Query of an inst...

Страница 26: ... READ Subsystem 392 7 12 5 SENSe Subsystem 393 7 12 6 TRACe Subsystem 435 7 13 SOURce Subsystem 445 7 13 1 SOURce AM Subsystem 446 7 13 2 SOURce CHIRp Subsystem 448 7 13 3 SOURce CORRection Subsystem 453 7 13 4 SOURce DM Subsystem 462 7 13 5 SOURce FM Subsystem 466 7 13 6 SOURce FREQuency Subsystem 468 7 13 7 SOURce INPut Subsystem 476 7 13 8 SOURce LFOutput Subsystem 477 7 13 9 SOURce LIST Subsys...

Страница 27: ...ubleshooting 601 9 1 Status Information 601 9 1 1 Status information displayed between the frequency and level fields 601 9 1 2 Status information displayed to the left of the Info line 602 9 1 3 Status information displayed in the Info line 603 9 2 Error Messages 604 9 2 1 Volatile messages 604 9 2 2 Permanent messages 605 9 3 SCPI Error Messages 605 9 4 Device Specific Error Messages 605 9 5 Res...

Страница 28: ...description of the remote control commands with programming examples and information on maintenance instrument interfaces and error messages Includes the contents of the quick start guide manual The online version of the operating manual provides the complete contents for imme diate display on the Internet Service manual Describes the performance test for checking the rated specifications module r...

Страница 29: ...cs see http www rohde schwarz com appnotes 1 2 Typographical Conventions The following text markers are used throughout this documentation Convention Description Graphical user interface ele ments All names of graphical user interface elements on the screen such as dialog boxes menus options buttons and softkeys are enclosed by quotation marks KEYS Key names are written in capital letters File nam...

Страница 30: ...ual 1167 2319 02 12 The screenshots usually show a fully equipped product that is with all options instal led Thus some functions shown in the screenshots may not be available in your par ticular product configuration Notes on Screenshots ...

Страница 31: ... manual provides an overview of the generator functions and introduces the operating concept Detailed operating instructions and an overview of menus follow in Chapter 4 Manual Operation on page 71 For all reference information concerning manual and remote control of the instrument refer to the online help system or its printed printable version A more detailed descrip tion of the hardware connect...

Страница 32: ... Configuration of Instrument Setup Key on page 101 HCOPY Opens the Hardcopy menu for configuring and starting printing For more information see Chapter 5 2 5 Generating a Hard Copy of the Display on page 134 INFO Displays status messages error messages and warnings HELP Displays context sensitive help text 2 1 2 Standby LEDs and Standby Key The standby LEDs and the ON STANDBY key are located in th...

Страница 33: ...g menus Active menus info windows and graphs are displayed on top of the block diagram The block diagram can be displayed in the foreground anytime with the DIAGRAM key Winbar at the bottom of the display Open menus are indicated by a labelled button in the Winbar When a button is pressed the associated menu is displayed either in the foreground or minimized in the Winbar Pressing the WINBAR key t...

Страница 34: ... are indicated by the buttons in the Winbar ESC The function of this key depends on the current cursor position Calls the next higher selection level Closes the open window without accepting new entries the old value or parameter is retained In dialog boxes that contain a Cancel button it activates that button Closes all kinds of dialog boxes if the edit mode is not active Quits the edit mode if t...

Страница 35: ...eir function depends on the data type of the input field Keys Description 0 9 abc Enters the corresponding numbers in numeric input fields or characters character input fields Inserts a decimal point numeric input fields or dot character input fields at the cursor position Multiple decimal points are not allowed Changes the sign of a numeric parameter In the case of an alphanumeric parameter inser...

Страница 36: ...nd closes open input windows In a dialog box selects the default or focused button In a dialog box activates the edit mode for the focused area if available In a dialog box activates or deactivates the selected option of the focused area if the edit mode is active Calls the next menu level 2 1 6 Rotary Knob and Navigation Keys The rotary knob and the arrow keys are alternative control elements for...

Страница 37: ...rs are located on the front panel SENSOR Connector for R S NRP Zxx sensors With the aid of the User Correction function a table with correction values for exter nal test assemblies can be automatically determined e g for compensating the fre quency response of cables The power sensors are connected by inserting the male connector To disconnect hold the connector by its sleeve Pulling on the sensor...

Страница 38: ...apter 2 4 mm female NOTICE Risk of RF connector and cable damage Excessive tightening of the connec tors can damage the cables and connectors Too weak tightening leads to inaccurate results Always use an appropriate torque wrench suitable for this type of connector and apply the torque specified in the application note 1MA99 If your instrument is equipped with a test port adapter refer also to 1MA...

Страница 39: ...AM FM Phase Modulation ASK FSK and PSK option R S SMF B20 The rear panel inputs are available only with option R S SMF B81 This option is recommended for use of the instrument in a 19 rack Installing the instrument in a 19 rack requires a rack adapter refer to data sheet for Order No VIDEO Output of the external or internal pulse modulation signal video signal SENSOR Rear panel connector for R S N...

Страница 40: ...rface for remote control of the instrument The GPIB interface is available only with option R S SMF B83 Note With respect to security concerns you can alternatively equip your instrument in this slot with a removable CompactFlashTM Card option R S SMF B85 This option is available for instruments with serial number higher than 104000 Further information concerning security of storage media is given...

Страница 41: ... REF OUT Output of internal reference signal It can be adjusted whether the internal or the external signal is to be output See also Chapter 5 3 4 Reference Oscillator on page 155 MARKER Output for user programmable marker signal used for brightness control of an oscillo scope This output becomes active when the sweep run has reached the marker BLANK Output for triggering and blanking an oscillosc...

Страница 42: ...nal pulse generator option R S SMF K23 The connector at the rear panel is available only with option R S SMF B81 This option is recommended for use of the instrument in a 19 rack Installing the instrument in a 19 rack requires a rack adapter refer to data sheet for Order No SYNC Output for internal SYNC signals for pulse modulation LF Rear panel output for internal LF generator signal option R S S...

Страница 43: ... under test DUT ESD is most likely to occur when you connect or dis connect a DUT or test fixture to the instrument s test ports To prevent ESD use a wrist strap and cord and connect yourself to the ground or use a conductive floor mat and heel strap combination For details refer to the basic safety instructions delivered as a printed brochure with the instrument Risk of instrument damage during o...

Страница 44: ...d cover that protects the rear of the instrument 4 Carefully unthread the corrugated cardboard cover at the front that protects the instrument handles and remove it 5 Check the equipment for completeness using the delivery note and the accessory lists for the various items 6 Check the instrument for any damage If there is damage immediately contact the carrier who delivered the instrument Make sur...

Страница 45: ...nd instrument damage if stacking instruments A stack of instruments may tilt over and cause injury Furthermore the instruments at the bottom of the stack may be damaged due to the load imposed by the instruments on top Observe the following instructions when stacking instruments Never stack more than three instruments with the same dimensions width and length If you need to stack more than three i...

Страница 46: ...instrument to the AC power source using the AC power cable deliv ered with the instrument Note The instrument is in compliance with safety class EN61010 1 Connect the instrument only to a socket with earthing contact 2 3 5 Starting the Instrument Switching off the AC power You can leave the AC power on permanently to preserve your last instrument settings Switching off is required only if the inst...

Страница 47: ...nstrument uses the last setup with the relevant instrument settings Once the startup procedure has been terminated the block diagram opened in the pre vious session is displayed and the instrument is ready for operation Use the PRESET key to return the instrument to its definite reset preset state if the current setup is not anymore relevant To customize the start settings use the File dialog Rebo...

Страница 48: ...wever functions that concern the integration of the instrument into a measurement setup are not changed e g GPIB bus address or reference oscillator source settings Preset the instrument to its factory settings The instrument can also be forced to load its default factory settings To access the corresponding dialog box press the SETUP key and select the Factory Preset For more information and an o...

Страница 49: ... running instrument using the rear panel switch or by disconnecting the power cord the instrument loses its current settings Furthermore program data may be lost Press the ON STANDBY key first to shut down the application properly 1 Press the ON STANDBY key to save the current setup shut down the operating system and set the instrument to standby state The yellow LED must be on 2 To switch off the...

Страница 50: ...plications Keyboard or mouse to simplify the entry of data comments file names etc Power sensors for example of the NRPxS N Power Sensors family Installing USB devices is easy under Linux because all USB devices are plug play After a device is connected to the USB interface the operating system automatically searches for a suitable device driver If Linux does not find a suitable driver it will pro...

Страница 51: ...d on the instrument under Linux have been adapted to the instrument Existing instrument software must always be modified using only update software released by Rohde Schwarz The configuration of the operating system is optimally adapted to signal generator functions in the factory Changes in the system setup are only required when peripher als like keyboard are installed or if the network configur...

Страница 52: ...of time The screen saver prolongs the life time of the display Use the Setup Display Settings dialog to switch on or off the screen saver and to adjust the screen saver settings 2 6 Setting Up a Network LAN Connection The R S SMF is equipped with a network interface and can be connected to an Ether net LAN local area network Provided the appropriate rights have been assigned by the network adminis...

Страница 53: ...ction Risk of network failure Before connecting the instrument to the network or configuring the network consult your network administrator Errors may affect the entire network Connect the instrument to the network or to a single PC If the instrument is connected to the LAN the operating system automatically detects the network connection and activates the required drivers By default the instrumen...

Страница 54: ...ic TCP IP configuration you must assign valid address information before connecting the instru ment to the LAN Contact your network administrator to obtain a valid IP address Assigning the IP address on the instrument 1 Press the SETUP key and select the Network Settings dialog 2 Set the Address Mode to Static 3 Select the IP Address and enter the IP address for example 192 168 0 1 The IP address ...

Страница 55: ...ed Each instrument is delivered with an assigned computer name but this name can be changed The default instrument name is a non case sensitive string that follows the syntax rs instrument serial number The serial number can be found on the rear panel of the instrument It is the third part of the device ID printed on the bar code sticker Querying and changing a computer name 1 Press the Setup key ...

Страница 56: ...e computer Any web browser for example Windows Internet Explorer or Mozilla Firefox see Chapter 2 7 1 Using a Web Browser for Remote Access on page 42 required no Java Runtime must be installed and activated in the browser settings Web browser with HTML5 for example LXI Browser see Chapter 2 8 2 4 Web Control on page 53 required no Web sockets must be supported VNC Client for example Ultr VNC or o...

Страница 57: ... can be remote accessed via any web browser as for example the Win dows Internet Explorer or Mozilla Firefox Alternatively you can also make use of the LXI browser as described in Chap ter 2 8 2 4 Web Control on page 53 To remote access the instrument via a web browser 1 Connect the instrument and the remote computer to a LAN see Chapter 2 6 1 Connecting the Instrument to the Network on page 38 2 ...

Страница 58: ...viate in some details but the basic procedure is the same Risk of Unauthorized Access If the VNC service is enabled on the instrument any user in the network who knows the computer name and password can access it Disable the VNC service on the instrument to prevent unauthorized access See LAN Services on page 128 Setting up a VNC connection 1 Connect the instrument and the remote computer to a LAN...

Страница 59: ...he program from the internet and copy it to a directory that can be accessed 2 On the instrument shut down firmware using the ALT F4 key combination 3 Double click on the setup file to start the installation The setup wizard leads through the installation This description focus only on the relevant settings a Select installation of all components b In the Additional Task Panel enable all entries A...

Страница 60: ...cific security requirements After the installation the Ultr VNC program is automatically started together with the operating system On mouse over the IP address of the instrument is indica ted This IP address and the user defined password are the prerequisites to enable remote access on the remote computer Terminated connection is indicated by changed icon color Installing the VNC Viewer on a Wind...

Страница 61: ...1 A dialog is opened and the password for the remote VNC connection is requested 3 Enter the password as defined in the Default Local System Properties panel of the Ultr VNC program and select Log On The connection is established the instrument is remote accessed and the current signal generator screen with the block diagram is displayed The individual func tions are operated using the mouse and k...

Страница 62: ...n on the R S SMF a Press the Windows key to access the operating system b Right click on the VNC icon on the task bar and select Kill all clients 2 To terminate the connection on the external Linux Unix PC close the internet browser or close the signal generator window 3 To terminate the connection on the external Windows PC close the VNC Viewer program The connection is terminated The color of th...

Страница 63: ...to identify the instrument easily For information about the LXI standard refer to the LXI website at http www lxistan dard org See also News from Rohde Schwarz article 2006 II 190 The R S SMF provides an integrated LXI Status dialog for LXI status indication and reset of the LAN configuration LAN Configuration Initialize LCI To access the LXI status dialog press the SETUP key and select Remote LXI...

Страница 64: ...terface 2 8 1 LXI Browser Settings To access the instrument via the web browser Type in the instrument s host name or IP address in the address field of the browser on your PC for example http 10 113 1 205 Note Do not add the missing zeros in the IP address while opening the instru ment home page The instrument home page welcome page opens The navigation pane of the browser interface contains the ...

Страница 65: ... 2 8 2 4 Web Control on page 53 Diagnostics SCPI Remote Trace records messages exchanged via the remote control interface see Chapter 2 8 2 5 SCPI Remote Trace on page 55 Help Glossary explains terms related to the LXI standard www rohde schwarz com opens the Rohde Schwarz home page Press the INACTIVE press to toggle button to activate the connection A green flashing status LED indicates the activ...

Страница 66: ...lects a configuration mode for the IP address of the R S SMF With static configuration the entered IP address subnet mask and default gateway are used With dynamic configuration DHCP or dynamic link local addressing automatic IP are used to obtain the instrument IP address See Chapter 2 6 2 Assigning the IP Address on page 39 2 8 2 2 Advanced LAN Configuration The Advanced Config page provides LAN...

Страница 67: ...covery Must be enabled to detect the instrument in the LAN If you disable this setting the instrument cannot be detected by the VXI 11 discov ery protocol mechanism The setting does not affect other detection mechanisms Setting up a VXI 11 connection via the IP address or the host name is independent of this setting 2 8 2 3 Ping Client The Ping Client page provides the ping utility to verify the c...

Страница 68: ...it 2 8 2 4 Web Control The web control functionality provides remote operation via VNC using a Web browser with HTML5 This mode does not require additional installation or activation The VNC protocol allows simultaneous operation from several remote devices The instru ment remains locally operable The GUI of the R S SMF is visible To perform the settings you can operate the instrument as with the ...

Страница 69: ...bar The R S SMF s welcome page is displayed 3 In the navigation pane select Instrument Control Web Control Remote access to the instrument requires the password The default password is instrument 4 Enter the password 5 Confirm with the ENTER key After the connection is established the current screen of the R S SMF is dis played in the browser window 6 Use the mouse cursor and keyboard to access th...

Страница 70: ...n the navigation pane select Diagnostics SCPI Remote Trace 2 In the toolbar bar of the SCPI Remote Trace page select live mode on and logging on live mode on displays all commands and responses and logging on also traces messages 3 If you now control the R S SMF with SCPI commands using an appropriate tool the SCPI remote trace records the information sent and received The function records all sen...

Страница 71: ...e screen Details displays details of the selected message for example an SCPI command in hex format also possible by double clicking a message Columns The following columns are available if no column filter is applied Rec record number of the message within the message log I number of the subinstrument MT indicates the type of the message Possible values and related message contents are incoming c...

Страница 72: ...ront panel Peripherals such as mouse or keyboard can be connected but are not essential The R S SMF is equipped with an intuitive user interface The central element of the display is the block diagram that shows the signal flow and processing from the left on the display to most right i e the generated signal can be seen at a glance Each block represents a functional unit of the instrument Thus yo...

Страница 73: ...help system corresponds to the operating manual of the instrument Warning and conflict messages caused by incorrect operation as well as further infor mation are displayed in the Info line A complete list of existing conflicts is displayed when the INFO CTRL I key is pressed Additional information on entries can be requested from the help system The history function permits display of all messages...

Страница 74: ... access in contrast to remote control does not use remote control commands but a separate software which is installed on the remote computer After its start the software simulates the user interface of the instrument The instrument can thus be operated from the remote computer as on the unit itself The individual functions are operated using the mouse and keyboard Specific instrument functions can...

Страница 75: ...gs include RF level settings RF level sweep settings including sweep markers Automatic level control NRP Z Power Viewer using power sensors NRP Z Power and Pulse Data Analysis using power sensors User Correction Note Numeric values for the level are entered best and quickest with the aid of the LEVEL key Modulation block In this block the modulation settings are performed The MOD ON OFF key switch...

Страница 76: ...t the rear of the instrument The LF frequency sweep is also configured in this block LF Output block In this block the LF output and the LF level sweep are configured The internal LF generators the noise generator or the external inputs EXT 1 and EXT 2 can be selected as source for the LF output Pulse Gen block In this block the settings for the internal pulse generator can be performed The pulse ...

Страница 77: ... multiplier and shows the values in the header Accordingly further adjustments can be made in this block For information in detail see the manual of your R S SMZ75 90 110 170 3 4 Example of Setup This section provides an example on how to configure the instrument for generating of an amplitude modulated signal and of a frequency modulated signal with noise Generation of an Amplitude Modulated Sign...

Страница 78: ... 2 Select and activate AM modulation a Turn the rotary knob and select the Modulation block b Press the rotary knob to open the dialog where the modulation can be selected different modulation modes are available depending on the options installed Example of Setup ...

Страница 79: ... and highlight Amplitude Modulation Press the rotary knob to open the Amplitude Modulation dialog d Turn the rotary knob to select parameter Depth press the rotary knob to allow editing and enter the preffered AM depth with the aid of the numeric keypad and the unit keys Example of Setup ...

Страница 80: ...RF signal a Press the FREQ key to activate the editing mode for frequency entry The Fre quency entry field in the header section of the display is highlighted Enter the frequency of the desired RF carrier using the numeric keypad and terminate the entry by pressing a unit key b Press the LEVEL key and enter the level settings in the same way c Press the DIAGRAM key to display the complete block di...

Страница 81: ...al 1167 2319 02 12 Generation of a Frequency Modulated Signal with Noise To generate a simple FM modulated with noise signal proceed as follow 1 Activate default preset state Press the PRESET key to set a defined instrument state Example of Setup ...

Страница 82: ...e Modulation block b Press the rotary knob to open the dialog where the modulation can be selected different modulation modes are available depending on the options installed c Turn the rotary knob and highlight Frequency Modulation Press the rotary knob to open the Frequency Modulation dialog The internal source is the LF generator 1 by default This setting is not changed Example of Setup ...

Страница 83: ...ise Generator The settings for the noise generator are performed in the LF Gen Noise block Gauss distribution and full bandwidth 10 MHz are the default settings for the noise signal e Turn the rotary knob to select parameter Deviation press the rotary knob to allow editing and enter the preffered deviation with the aid of the numeric key pad and the unit keys Example of Setup ...

Страница 84: ...for frequency entry The Fre quency entry field in the header section of the display is highlighted Enter the frequency of the desired RF carrier using the numeric keypad and terminate the entry by pressing a unit key b Press the LEVEL key and enter the level settings in the same way The noise now modulates the RF carrier c Press the DIAGRAM key to display the complete block diagram d Turn the rota...

Страница 85: ...Getting Started R S SMF100A 70 Operating Manual 1167 2319 02 12 The graph below shows the FM modulated signal with noise upper blue trace and the unmodulated signal lower greentrace Example of Setup ...

Страница 86: ...nt overview of characteris tics of the generated signal and of the current instrument state Numerous online help functions support user settings Block diagram The block diagram is the core of the operating concept A graphics display shows the current configuration and the signal flow in the form of a block diagram All graphical elements can be accessed for operation An element is selected by means...

Страница 87: ... contains all menus required for modulation signal con figuration In this block all modulations can be selected Signal flow The signal flow between the function blocks and the employed inputs and outputs are also shown Menu tree The menu tree can be opened and closed with the MENU CTRL M key The menu tree is organized in the same way as the directories under Windows The function blocks correspond ...

Страница 88: ...pending on the parameter the submenu is called the numeric value varied the list entry selected or the check box activated or deactivated If a value is entered the entry is stored by another click on the rotary knob and the editing mode is exited Clear settings with the aid of independent subdialogs A separate window is opened for each dialog and subdialog The dialogs can be oper ated independentl...

Страница 89: ... requires a short wait after activation of the entry field The range is then displayed automati cally after a few seconds If the entered value is outside the permissible range the next permissible value is automatically set and a message is output Context sensitive help Context sensitive help for each parameter can be called with the HELP or F1 key Comprehensive online help Each help page is part ...

Страница 90: ... of the block diagram Winbar with labeled softkeys for menu display The block diagram in the figure below shows a fully equipped instrument Figure 4 1 Block diagram of a fully equipped R S SMF 4 2 1 Settings Displayed in the Header Section Frequency level settings and a few status messages see Chapter 4 2 2 Status Infor mation and Messages on page 76 are displayed in the header field of the screen...

Страница 91: ...and set tings of the instrument The states are indicated for information only and do not neces sitate any action by the user Status information is displayed between the frequency and level fields at the left of the info line or in the info line itself 4 2 2 2 Messages Messages indicate errors in the instrument They are displayed in the info line in differ ent colors depending on their importance a...

Страница 92: ...of current permanent messages and a detailed description of each message can be opened with the INFO CTRL I key The upper section of the info window contains a list of all current permanent messages in the order of their occurrence i e the most recent message is displayed first In the lower section of the window additional information on the highlighted message is dis played A history of all messa...

Страница 93: ...the list When the button is pressed again the list of current messages is displayed Remote command SYSTem ERRor NEXT on page 577 or STATus QUEue NEXT on page 574 Each time a SYST ERR or STAT QUE query is sent the oldest entry in the error queue is returned and at the same time cleared in the list 4 2 4 Block Diagram The block diagram shows provided options signal configuration and the currently se...

Страница 94: ...on 4 2 4 2 Signal Flow and Input Output Symbols in the Block Diagram The input output symbols in the block diagram show the currently used inputs and out puts of the signal generator Unused inputs and outputs are not shown The lines indi cate the signal flow Symbols and labels refer to the corresponding inputs and outputs on the front and rear panel of the signal generator The direction input or o...

Страница 95: ...onfiguration selected the respective item is disabled and displayed in gray and the entry or selection field cannot be accessed 4 3 Accessing Dialogs The MENU CTRL M key opens the complete menu tree Selecting a functional block and pressing the ENTER key opens the menu associated with this block An alternatively way to access a dialog is to use the Winbar buttons or front panel soft keys or to use...

Страница 96: ...enu Tip If the cursor is at the highest menu level you can also use the ESC key to close the active menu Accessing the header area Press the FREQ CTRL F and LEVEL CTRL L keys to activate the Frequency or Level entry fields in the header area Keyboard Shortcuts Keyboard shortcuts e g Ctrl D for the displaying the block diagram in the fore ground provide direct access to all utility dialogs of the i...

Страница 97: ...ncy and level are directly set in the header area of the display using the FREQ and LEVEL keys Specific settings can also be made directly in the block diagram e g activating a func tion block by means of the TOGGLE ON OFF CTRL T key or switching the RF out put on and off with the aid of the RF ON OFF CTRL R key Changes affecting the signal flow are immediately visible in the graphics display This...

Страница 98: ...tches between different entry fields of a menu Shifts the entry cursor from the header display to the previously active menu or to the previously highlighted block in the block diagram if no menu is active Moving the coursor to the heading area Press the FREQ CTRL F or LEVEL CTRL L key to move the cursor to the header area 4 4 2 Selecting a Control Element Control elements are always selected in t...

Страница 99: ...revious value is cleared and the new value can be entered Editing a value in the insert mode default setting 1 Press the rotary knob Enter to activate the editing mode If the cursor is placed at the right of the total value the insert mode is always active 2 Set the cursor to the left of the number to be changed using the LEFT RIGHT arrow keys The cursor is displayed in green 3 Click on a numeric ...

Страница 100: ...e automatically changed to hexadecimal values 3 Click on an alphanumeric key to insert a new alphanumerical value Terminating the entry of a numeric value To terminate the entry of a numeric value 1 Press the rotary knob Enter 2 Press a UNIT key on the front panel 3 Select a Unit in the selection field next to the parameter value 4 4 5 Working with Units The unit of a parameter is displayed next t...

Страница 101: ...is recalculated to suit the new unit The new unit is indicated in the value field of the menu 4 4 6 Selecting a Value from a List Selection lists provide a list of predefined values for the selected parameter To select a item from a list proceed as follow 1 Press ENTER key to open the list 2 Use one of the following alternatives to navigate through the list a Turn the rotary knob or use the UP DOW...

Страница 102: ...tive only after this functions have been enabled However there are functions like the frequency variation of the reference oscillator for instance that are immediately set after confirmation To confirm a parameter with On Off state enable the parameter 4 4 8 Restoring the Previous Value Parameter variations with the rotary knob are immediately set and therefore not rever sible Normally values cann...

Страница 103: ...editors for defining lists Lists containing fre quency and level value pairs are used for the list mode and the user defined level cor rection The lists are saved to files and may thus have any length The file name of the lists and the directory to which the files are saved are user selectable The file prefix is different for each list type and is permanently assigned by the system For information...

Страница 104: ... and select Insert Row s A row is inserted above the currently marked row If no row has been selected a row is inserted at the beginning of the list 6 Use the Save Save As function to save the edited list under its current name or under a new name Enter the file name in the File Select dialog and select the directory see Chap ter 4 7 1 File Select Dialog on page 93 Only complete value pairs are ta...

Страница 105: ...ox press the HELP F1 key The help dialog is displayed A topic containing information about the current menu or the currently opened dialog box and its function is displayed Contents of the help dialog box The help dialog box contains two main areas Contents contains a table of help contents Topic contains a specific help topic The help system provides additionally an Index and a Find area as well ...

Страница 106: ...display the help topic The corresponding help topic is displayed Closing the help window Press the HELP F1 key 4 7 File Management The R S SMF uses files to save all instrument data i e system and user data The user data includes saved instrument settings and lists and the user correction The files are stored on the CompactFlashTM card of the instrument The var directory can be used to save user d...

Страница 107: ...sts e g user correction lists can be loaded They can be generated either exter nally or internally For internal generation a new list must be created in the File Select dialog which will then be edited in the list editor of the individual menu For more information refer to Chapter 4 8 Legend of Front Panel Controls on page 95 for an overview of key functions and a cross reference between the front...

Страница 108: ...ed When a file is saved or created its name is user selectable the extension is assigned automatically and cannot be entered The file is saved to the selected path In addition to the files saved by the user some menus also offer files containing prede fined contents These files are saved to a specific directory on system drive for this reason this directory cannot be chosen from the File Select me...

Страница 109: ...ike the File Select win dow the File Manager displays the full file names including extensions Working with the File Manager dialog 1 Accessing the File Manager dialog see Accessing files with user data on page 92 2 Navigating in the File Manager dialog Operation is very similar to the operation of a standard Windows explorer 3 Moving duplicating deleting or renaming files To move a file select th...

Страница 110: ... 4 8 Legend of Front Panel Controls The following table lists all key functions available on the front panel Key combinations used on the PC keyboard to trigger key functions on the instrument front panel are also described Keyboard labels are described in alphabetical order In addition a front panel key emulation and an on screen keyboard can be used for manual operation by mouse only Table 4 2 C...

Страница 111: ...arting a hardcopy HELP F1 Opens closes context sensitive help HIIDE CTRL H Minimizes the active menu Pressing the respec tive button in the Winbar opens the menu again INFO CTRL I Opens closes the info window INSERT Ins Activates the insert mode k m mV ALT F11 Selects the units kilo milli and mV for RF levels LEVEL CTRL L Activates the level entry LOCAL CTRL Q Switches the instrument from remote c...

Страница 112: ...the softkey STATUS CTRL Indicates the instrument status WINBAR CTRL W Toggles between the active menus 4 8 1 Front Panel Key Emulation The R S SMF provides a front panel key emulation to enable execution of the front panel key functions by mouse e g for remote access The emulation is called by a right mouse click The front panel key functions are executed by a mouse click on the asso ciated button...

Страница 113: ... attenuator settings Attenuator block The general instrument settings include various functions such as Setting a defined basic setup using the PRESET key see Chapter 5 2 2 Default Instrument Settings Preset Key on page 100 Switching from remote control to manual control using the LOCAL key see Chapter 5 2 4 Switching to Manual Control Local Key on page 133 Configuring the generator and its interf...

Страница 114: ...mplitude Modulation AM on page 257 Frequency Modulation see Chapter 5 5 3 Frequency Modulation FM on page 259 Phase Modulation see Chapter 5 5 4 Phase Modulation PhiM on page 262 Digital Modulation see Chapter 5 5 5 Digital Modulation on page 265 Pulse Modulation see Chapter 5 5 6 Pulse Modulation PM on page 267 The internal LF generators the LF frequency sweep and the noise generator are con figu...

Страница 115: ...et tings provide a reproducible initial basis for further settings However functions concerning the integration of the instrument in a measurement setup are not changed for example the GPIB address or reference oscillator settings When the instrument is switched on it is not the preset state that is active but rather the instrument state that was set before the instrument was switched on User defi...

Страница 116: ... sections as follows System covers general instrument parameters Test used to perform function tests Environment used to configure the controller interfaces Remote used to configure the remote control interfaces Protection used to set the protection level for service functions and security set tings Settings used to save or recall instrument settings or to preset the instrument to factory settings...

Страница 117: ... Additional Information to the Adjustments During adjustments a progress indicator shows the status of the process If any error occurs the process aborts and an error message appears in the info line The extent of the adjustments depends on the installed options Risk of damage to the DUT High power at the RF output may destroy a connected DUT Device Under Test During level adjustment instruments w...

Страница 118: ...use of external level correction data This switch can be used in case of corrupt external level correction data By default the instrument uses correction data obtained in the factory before delivery In addition customer data can be used for external level correction The customer data is obtained using a R S NRP power sensor External level correction is a protected function see service manual chapt...

Страница 119: ...he number of power on Power On Counter The second part of the menu is a table that lists the installed assemblies It is divided into the sections Common Assembly RF Assembly Baseband Assembly Operation Time h Displays the operation time in hours Remote command DIAGnostic INFO OTIMe on page 360 Power On Count Displays the number of power on Remote command DIAGnostic INFO POCount on page 360 Assembl...

Страница 120: ...ge is also described in the service manual Most hardware options need to be installed at an authorized Rohde Schwarz service shop To access the Software Options dialog select System and press the SETUP or MENU key The menu is divided into the following sections Firmware Hardware Options Software Options Firmware The firmware section of the menu shows the firmware version and the version of the sof...

Страница 121: ...es Section Loaded Modules is provided for service purposes It lists all loaded software modules with their versions and offers a short description of each module Remote command n a 5 2 3 4 Manage License Keys This dialog is the central dialog for managing licenses like enabling newly purchased and or newly registered options or performing the required instrument related steps during the process of...

Страница 122: ... specific identification number The device ID is an unique string with the following structure stock number serial number checksum Enter License Key Type here the license key provided with the option For license keys delivered as a file use Import License Key from File Import License Key from File Opens a dialog for selecting the file with the license key Export Deactivation Response to File Expor...

Страница 123: ...irmware and the offered firmware suitable for your sensor 4 Transfer and save the firmware on the instruments for example in the var directory 5 Connect the sensor to the R S SMF and select Setup System NRP Z Info Update to open the dialog 6 Select the sensor in the left sensor selection field 7 Select the update file with Select NRP File 8 Start the update procedure with Run Update The update sta...

Страница 124: ...the selected file is indicated to the left of the button On the left side the sensor to be updated is selected Button Run Update starts the update Note If the update is interrupted for example by accidental removal of the sensor dur ing the process the button Rescue appears Thus you can restart the update proc ess Prerequisite is that no other sensor is connected to the instrument Refer to How to ...

Страница 125: ...ents only When protection is activated you can not see this section in the dialog Starting with the R S SMF firmware version 2 20 530 xx the function is no longer protected and you can perform the update 5 2 3 7 Update After a firmware update it is occasionally required to also update the PCI FPGA This is enabled in the Update dialog At the first start of the new firmware a message appears during ...

Страница 126: ...t settling times it is recommended to switch off the display update Remote command SYSTem DISPlay UPDate on page 586 5 2 3 9 Check Front Panel With the functions provided in this dialog you can verify the functionality of the control keys of the R S SMF In case of malfunctions contact your Rohde Schwarz Customer Support Center for technical support see http www customersupport rohde schwarz com Ac...

Страница 127: ...is only com pleted when you have veryfied all keys During the test the actual functions of the keys are disabled Proceed as follows 1 Press the SETUP key 2 Select Test Check Front Panel The Check Front Panel dialog opens 3 Press a key on the front panel Check if the corresponding key in the Check Front Panel dialog turns green 4 Press the same key a second time Check that the key in the dialog tur...

Страница 128: ...panel key switches the instrument from the standby to the ready state or vice versa In remote operation form a remote computer or in manual control the R S SMF provides you with another possibility to shut the instru ment down or to reboot the system To access the required settings select Setup Environment Shut Down Remote control commands SYSTem SHUTdown on page 586 SYSTem REBoot on page 586 see ...

Страница 129: ... nents Note By typing the first letter you can quickly navigate through the lists to find the desired destination Remote command SYSTem TIME ZONE on page 588 SYSTem TIME ZONE CATalog on page 588 5 2 3 12 Network Settings The Network Settings dialog shows the parameters relevant for identifying the instru ment in a network The R S SMF is equipped with a network interface and can be con nected to an...

Страница 130: ...al name which can be used instead of the IP address With the default network settings the IP address is allocated by the DHCP server This address may change each time the instrument is reconnected Unlike the IP address the host name does not change Note Since the host name of the instrument is a protected parameter you must first unlock protection level 1 to enable the entry see Chapter 5 2 3 18 P...

Страница 131: ...oes not support DHCP or the attempt does not succeed the instrument tries to obtain the IP address via Zeroconf APIPA protocol IP addresses assigned via Zeroconf start with the number blocks 169 254 Note An IP address that is assigned via the Zeroconf protocol while the network requires an IP address assigned via the DHCP server may cause network connection failures See Chapter 9 5 Resolving Netwo...

Страница 132: ...ddress Mode Static Remote command SYSTem COMMunicate NETWork IPADdress DNS on page 580 MAC Address Indicates the MAC Media Access Control address a unique identifier of the network adapter in the R S SMF Remote command SYSTem COMMunicate NETWork MACaddress on page 581 Restart Network Terminates the network connection to the instrument and subsequently re establishes it Used this function to resolv...

Страница 133: ...t USB Keyboard Settings Selects the keyboard layout for the selected keyboard language The assignment of some keys depends on the selected layout and language Remote command KBOard LAYout on page 372 KBOard LANGuage on page 372 5 2 3 14 Auxiliary I O Settings The Auxiliary I O Settings dialog provides access to the settings for the V GHz BLANK and MARKER auxiliary output To access this dialog pres...

Страница 134: ...g The blank marker starts after the external sweep trigger signal Trigger and RF The blank marker starts with the external sweep trigger signal Remote command OUTPut BLANk WIDTh on page 385 RF Blanking Selection of the RF blanking method for sweeps with step widths less than 10 MHz Auto RF blanking only when the step synthesizer switches to the next step provides a clean RF spectrum On RF blanking...

Страница 135: ...Channel Settings dialog contains the GPIB address and displays the VISA resource strings provided for remote control via the various interfaces GPIB channel address Sets the address of the GPIB channel the instrument is connected to Remote command SYSTem COMMunicate GPIB SELF ADDRess on page 579 RS232 using USB adapter Remote control via a serial interface is possible via a USB The controller and ...

Страница 136: ...s an individual unique address to identify the instrument for remote control Remote command SYSTem COMMunicate HISLip RESource on page 582 SYSTem COMMunicate NETWork RESource on page 582 SYSTem COMMunicate SOCKet RESource on page 584 SYSTem COMMunicate GPIB RESource on page 582 SYSTem COMMunicate USB RESource on page 583 SYSTem COMMunicate SERial RESource on page 583 Goto Local Switches the instru...

Страница 137: ...To return you need to know the corresponding remote control command of the simulated instrument If you emulate an HP generator for example the HP command EX returns to the SCPI command set To access this dialog press the SETUP or MENU key and select Remote Instru ment Emulations The Instrument Emulations dialog enables you to emulate a remote control com mand set of several other signal generators...

Страница 138: ...strument as queried with the common command OPT If a User defined see Mode IDN String is selected you can create a user defined option string in addition to the automatically created one Remote command OPT on page 351 5 2 3 17 LXI Status The LXI LAN eXtensions for Instruments Status dialog displays the settings and status of the LAN and allows to reset the LAN connection For more information on LX...

Страница 139: ...o Detect VXI 11 Discovery Enabled The LAN settings are configured using the instrument s LXI Browser Interface descri bed in Chapter 2 8 LXI Configuration on page 48 To open the Instrument Home Page welcome page type the instrument s computer name host name or IP address in the address field of the browser on your PC for example http 10 111 10 175 Note Do not add the missing zeros in the IP addres...

Страница 140: ...he checkbox of the protection level is disabled i e the protection is unlocked 3 To lock a protection level again select the checkbox Protection Level Password Locks or unlocks the corresponding protection level E g protection level 1 expands the functionality of the internal adjustment and to access the selftests The password is 123456 Remote command SYSTem PROTect ch STATe on page 585 5 2 3 19 S...

Страница 141: ...ures controlled access to the mass memory of the instru ment Write nonvolatile memory protects against modification or deletion of data in the file system Annotation frequency and amplitude prevents reading the display User Interface prevents front panel operation and or reading the display Bluetooth enables operation of the instrument via Bluetooth Changing the password for the operating system o...

Страница 142: ...me Indicates the user name used for access to the Linux operating system The user name and password are required for remote access to the instrument via VNC FTP or SAMBA Change User Password Allows you to change and confirm the user password Old Password Change User Password Enters the current user password The default password is instrument Note It is highly recommended to change the default user...

Страница 143: ...is highly recommended to change the default security password before con necting the instrument to the network The security password is required when changing the status of the USB and LAN inter face New Password Change Security Password Enters the new security password The security password may contain decimal characters only Confirm Password Change Security Password Confirms the new password by ...

Страница 144: ... to remotely control the instrument SSH activates access via SSH Secure Shell a network protocol for secure data communication HTTP activates access via HTTP Hyper Text Transfer Protocol the appli cation protocol for hypermedia information systems FTP activates access via FTP File Transfer Protocol used to transfer files from a host to the instrument and vice versa SMB Samba activates access to SM...

Страница 145: ...y on page 361 Annotation Amplitude Enables disables the display of the currently selected level in the header of the instru ment Note The setting will not be assigned until you enter the Security Password and con firm with Accept Remote command DISPlay ANNotation AMPLitude on page 361 User Interface Allows you to lock the manual of the controls of the instrument and to hide even the entire display...

Страница 146: ...ate the instrument via remote control The function disables the display the keys at the front panel of the instrument the external mouse and keyboard The screen shuts off and shows a padlock instead Remote command SYSTem ULOCk on page 578 SYSTem DLOCk on page 577 SYSTem KLOCk on page 578 Enabling a locked user interface for manual operation To unlock the user interface for manual operation you hav...

Страница 147: ...en if you perform a factory preset Bluetooth Pin Sets the Bluetooth pin of an external Bluetooth device The pin is required to enable remote control via an external Bluetooth device Requires a Bluetooth adapter recommended extra see data sheet The interface parameters are identical to the RS232 interface parameters and can be set in the Remote Channel Settings dialog see RS232 using USB adapter on...

Страница 148: ... are not changed Not affected by the Factory Preset are also user data lists or instrument settings files created for example by means of the Save Recall function Remote command SYSTem FPReset on page 355 5 2 3 22 Help The Help dialog offers comprehensive online help for the R S SMF A desired topic can be selected via the table of contents select Manual or the index select Index For context sensit...

Страница 149: ...cal lockout command The instrument can be switched from remote state to local state only via remote control for example with GTR or the Visual Basic command CALL IBLOC generator The LOCAL key has previously been locked by the remote com mand LLO When switching from remote to manual control the display update function is automati cally deactivated SETUP Start Stop Display Update Off 5 2 5 Generatin...

Страница 150: ...esponding parameters see File Options on page 136 Remote command n a File Some configuration parameters are already offered in the Hardcopy dialog All configu ration parameters are available in File Options on page 136 Automatic Naming Activates automatic generation of the file name Automatic naming is configured in the Options sub dialog see File Options on page 136 Remote command HCOPy FILE NAME...

Страница 151: ... components Path Selects the directory Note To select the destination path you have to specify a file name as well Otherwise an error message is displayed and the selection is canceled Directory path and file name are displayed in the infoline right to the Path button Remote command HCOPy FILE NAME AUTO DIRectory on page 367 HCOPy FILE NAME AUTO on page 367 Clear Path Deletes all image files with ...

Страница 152: ...rting with number 0 the output direc tory is scanned for already existing files As long as files with the same name are existing the number is increased by 1 The number is automatically set so that the resulting file name will be unique within the selected path The current number is not in the save recall file but will be temporarily stored within the database At following save oper ations the num...

Страница 153: ...y displayed page is within the contents list Index in the navigation panel The index is used to call up all pages which contain the selected entry The index has an alphabetical structure and also contains all GPIB commands Find The find function allows you to look for freely selectable terms in all help pages A list of the pages containing the entered term is displayed as the search result The sea...

Страница 154: ...n data a refer ence to this list is stored not the list itself The list is reactivated when the associated settings are loaded but the list may have been modified or deleted in the meantime or may not be available on a different instrument If the list has been modified the new entries will be used An error message appears if an attempt is made to access a non existing list or to activate settings ...

Страница 155: ...ding Instrument Settings on page 141 5 2 8 2 Storing Instrument Settings If Save is selected under Select Operation the File menu provides options for stor ing the current instrument setting in a file Recent files Displays the files last used Directory File List and File Name Note You access this generic standard function each time you perform one of the following store or load settings files defi...

Страница 156: ... Stores the current instrument setting in one of the three intermediate memories These instrument settings are retained until a different instrument setting is stored in the intermediate memory When the instrument is switched off the contents of the intermediate memories are retained Remote command SAV on page 353 File Manager Accesses the File Manager dialog see Chapter 5 2 8 4 File Manager on pa...

Страница 157: ...n a directory MMEMory CDIRectory on page 377 MMEMory CATalog on page 376 SOURce CORRection CSET CATalog on page 454 Exclude Frequency The current frequency is retained when a stored instrument setting is loaded Remote command SOURce hw FREQuency CW FIXed RCL on page 470 Exclude Level The current level is retained when a stored instrument setting is loaded Remote command SOURce hw POWer LEVel IMMed...

Страница 158: ...he File Manager dialog see Chapter 5 2 8 4 File Manager on page 143 Remote command n a 5 2 8 4 File Manager The File Manager is a tool very similar to a standard Windows Explorer and helps you manage mass storage media and files stored on the R S SMF You can perform the following tasks Copying multiple files from disk to other media and vice versa see Chapter 5 2 8 5 Accessing the File System of t...

Страница 159: ...file It can be pasted into a different directory using the Paste but ton Remote command MMEMory DELete on page 379 Copy Copies the selected file It can be pasted into a different or the same directory using the Paste button When pasting the file into the same directory file name Copy of file name is given automatically When pasting the file into a different directory the original file name is kept...

Страница 160: ...rmation on how to set up a LAN connection refer to Chapter 2 6 Setting Up a Network LAN Connection on page 37 An instrument connected to a LAN supports the standard file transfer methods from a remote client FTP file transfer protocol see To access the file system of the R S SMF via ftp on page 145 File sharing according to the SAMBA SMB server message block protocol see To access the file system ...

Страница 161: ...r user share directory You can access the files in the var user directory perform standard function like creating directory etc 6 Open the var user share directory and create a new directory e g testftp 7 On the instrument press the FILE key and open the var user share directory The dialog displays the testftp dircetory To access the file system of the R S SMF via SMB Samba The SMB Samba protocol ...

Страница 162: ...ou change the user password in the Security dia log before connecting the instrument to the network See Chapter 5 2 3 19 Security on page 125 The var user share directory of the instrument is mapped to and displayed as a network drive of the remote PC You can access the files in this directory perform standard function like creating directory storing files etc 5 3 RF Frequency Block 5 3 1 Overview...

Страница 163: ...ctivates RF signal output This function corresponds to the RF ON OFF key See also Chapter 5 3 1 1 RF Output on page 147 Remote command OUTPut hw STATe on page 385 RF Output State Activates the RF output signal by selecting the RF checkbox in the Configure dialog of the RF Frequency block enabling the RF State in the RF Level EMF ALC UCOR dialog Remote command OUTPut hw STATe on page 385 5 3 1 2 RF...

Страница 164: ...t input of the RF frequency Alternatively you can enter the RF frequency in the Frequency Phase dialog Note that the displayed RF frequency in the header and the RF output frequency entered in the Frequency Phase dialog can be different as explained in the following section 5 3 2 1 RF Frequency vs RF Output Frequency If you are working with a downstream instrument e g a mixer or a frequency multip...

Страница 165: ...vel of the Freq display that means an entered frequency offset and multiplier factor are considered in the frequency value Remote command SOURce hw FREQuency CW FIXed on page 469 5 3 2 3 RF Frequency Dialog The combined RF Frequency Phase dialog contains the parameters required for configuring the frequency and settings like a frequency offset or a multiplier factor of an externally connected mult...

Страница 166: ...el display in the status bar The display has been disabled for security reasons see Annotation Frequency and Annotation Amplitude The display is disabled when list mode is running see State List Mode on page 171 Remote command SOURce hw FREQuency CW FIXed on page 469 Note This command sets the frequency of the FREQ display that is the frequency containing offset and multiplier Offset Sets the freq...

Страница 167: ...e downstream multiplier The entry does not change the RF frequency at the RF output of the R S SMF see also Chapter 5 3 2 1 RF Frequency vs RF Output Frequency on page 149 Remote command SOURce hw FREQuency MULTiplier on page 472 5 3 2 5 User Variation Settings Access Select RF Frequency config RF Frequency Frequency Phase The combined RF Frequency Phase settings dialog contains the parameters det...

Страница 168: ...t your device is equipped with the enhanced phase noise and FM ɸM modulator R S SMF B22 and the extended synthesis assembly SynEx with part number 1413 1800 02 This assembly is installed in all instruments with serial number 112000 or higher If your instrument is equipped with the previous version of the SynEx assembly the normal bandwidth is provided and th Main Pll Bandwidth parameter is suppres...

Страница 169: ...r row PLL bandwidth provided you perform the modulation in Low Noise mode Con sequently some operation modes exclude each other The table shows the operating modes which can be activated simultaneously or which deactivate each other Main PLL Bandwidth FM Mode Normal FM Mode Low Noise ɸM Mode Low Noise ɸM Mode High Bandwidth ɸM Mode High Deviation Normal Narrow Behavior of the instrument when you c...

Страница 170: ...mmands required to define the settings are described in Chap ter 7 13 13 SOURce PHASe Subsystem on page 519 Delta Phase Sets the phase of the RF signal The current phase of the signal is used as the refer ence This function allows for example the phase of the output signal to be synchron ized with the phase of a signal from a second signal generator Remote command SOURce hw PHASe on page 519 Reset...

Страница 171: ...ion is used for example in phase noise measurement systems The frequency shift resulting from a tuning voltage value depends on the technical equipment of the instrument See the data sheet for the associated technical data like sensitivity input voltage range and impedance The maximum bandwidth for external tuning signal input is approximately 50 Hz Note The bandwidth of an external PLL Phase Lock...

Страница 172: ...ence frequency The appropriate connectors are located at the rear panel see REF IN on page 26 and REF OUT on page 26 To use the EFC feature apply the signal at the EFC input connector at the rear of the instrument see EFC on page 26 5 3 4 1 Reference Oscillator Settings To access the settings dialog for configuring the reference signal perform one of the following In the block diagram select RF Fr...

Страница 173: ... on page 554 Deactivate RF Output if external reference is missing Turns the RF output off when the external reference signal is selected but no signal is supplied This function prevents that no improper RF signal due to the missing external refer ence signal is used for measurements A message indicates that the external signal is missing and the RF output is deactivated This setting is not affect...

Страница 174: ...n page 553 Adjustment DAC Value Sets a user defined deviation for the internal reference frequency This value takes effect when it is activated with Adjustment Active 0 represents the calibrated state The setting range depends on the reference oscillator type and its factory calibration value Note A factory preset resets this setting to the calibration value of the instrument Remote command SOURce...

Страница 175: ...requency sweep as an example The LF frequency sweep is activated and configured in the LF Gen Noise block 1 Set the sweep range Start Freq and Stop Freq or Center Freq and Span 2 Select linear or logarithmic sweep spacing Spacing 3 Set the step width Step Lin Log and dwell time Dwell Time 4 Activate the sweep Mode to Auto Single Step or Extern Single Extern Step 5 Trigger the sweep except for Auto...

Страница 176: ...weep is activated and the sweep mode is selected The buttons are used to reset the RF sweep all sweep modes or to execute the RF sweep Single mode The sweep range sweep spacing and dwell time are set in the bottom section The very fast ramp sweep can be activated in this section The button Edit Marker opens the subdialog for configuring the sweep markers You can configure the sweep range of the RF...

Страница 177: ... event at the initial value The Reset Sweep button sets the sweep to the start value Auto Generates a continuously repeating sweep signal immediately after activating the sweep mode The sweep steps are performed atomatically controlled by the dwell time see Dwell Time Frequency Sweep on page 168 Example SOUR SWE FREQ MODE AUTO TRIG FSW SOUR AUTO SOUR FREQ MODE SWE Single Generates a single sweep c...

Страница 178: ...SWE FREQ SPAC LIN SOUR SWE FREQ STEP LIN 100MHz SOUR FREQ MODE MAN TRIG FSW SOUR SING set sweep mode Step SOUR FREQ MODE SWE activate sweep mode the frequency is set to Start Freq SOUR FREQ MAN UP set the frequency to the next higher sweep frequency SOUR FREQ MAN DOWN set the frequency to the next lower sweep frequency Extern Single Generates a single sweep cycle when an a external trigger event o...

Страница 179: ...external trigger signal input see Chapter 2 2 Rear Panel Tour on page 24 Example SOUR SWE FREQ MODE AUTO TRIG FSW SOUR EAUT SOUR FREQ MODE SWE External trigger Remote command SOURce hw SWEep FREQuency MODE on page 559 TRIGger hw FSWeep SOURce on page 591 SOURce hw FREQuency MODE on page 471 Specific Sweep Parameters The sweep parameters described in this topic are only available for particular emu...

Страница 180: ...ial value Remote command SOURce hw SWEep RESet ALL on page 570 Start Freq Frequency Sweep Sets the start frequency Remote command SOURce hw FREQuency STARt on page 473 Stop Freq Frequency Sweep Sets the stop frequency Remote command SOURce hw FREQuency STOP on page 474 Center Freq Frequency Sweep Sets the center frequency Remote command SOURce hw FREQuency CENTer on page 468 Span Frequency Sweep S...

Страница 181: ... Selects the waveform shape of the sweep signal Sawtooth One sweep runs from start to stop frequency Each subsequent sweep starts at the start frequency that means the shape of the sweep sequence resembles a sawtooth Triangle The sweep runs from the start to the stop frequency and back that means the shape of the sweep resembles a triangle Each subse quent sweep starts at the start frequency Remot...

Страница 182: ... SOURce hw SWEep FREQuency STEP LINear on page 562 Step Log The step width is determined logarithmically in that means as a constant fraction of the current frequency Successive frequencies are calculated as follows start_f stop_f f2 f1 1 step_log 100 If f2 stop_f f2 is set to stop_f start_f stop_f f2 f1 1 step_log 100 If f2 stop_f f2 is set to stop_f When the shape Triangle is set the frequency v...

Страница 183: ...y be greater than the time specified in the data sheet Note It is recommended to switch off the display update for optimum sweep performance especially with short dwell times see Chapter 5 2 3 8 Display Update on page 110 Remote command SOURce hw SWEep FREQuency DWELl on page 556 Ext Trigger Input Slope Sets the polarity of the active slope of an externally applied instrument trigger This setting ...

Страница 184: ...when the frequency mark is reached Only one marker is output at the MARKER output at one time Marker RF Frequency Marker Displays the marker index The active marker is selected by this index Remote command n a Frequency RF Frequency Marker Enters the frequency for the corresponding marker If the marker is activated the sig nal level at the MARKER output changes according to the set polarity on rea...

Страница 185: ...marker The active marker is output with a higher voltage than all other markers Remote command SOURce hw SWEep FREQuency MARKer ACTive on page 557 5 3 6 List Mode Similar to a sweep a series of previously defined frequency and level points is pro cessed in List mode In contrast to a sweep however a list with freely selectable value pairs frequency and level can be created The value range for frequ...

Страница 186: ...imes will definitely no longer deviate from the set dwell times The list is processed from the beginning to the end of the list modes Auto Exter nal Single External Step 5 3 6 1 List Mode Dialog To open the List Mode menu select RF Frequency Configure List Mode or use the MENU key under RF Frequency The menu is used to activate deactivate the operating mode List to create select and activate the l...

Страница 187: ...f the list Activating Step stops the current list and the cursor moves to the value displayed for Cur rent Index It is now possible to scroll up and down in the list in dis crete steps by varying the index The duration of a list step is deter mined by the time between two index entries Button Reset restarts the list at the starting point Extern Single Single cycle from the beginning to the end of ...

Страница 188: ...ve net dwell time is shorter reduced by the setting time This setting time may be greater than the time specified in the data sheet Remote command SOURce hw LIST DWELl on page 510 Current Index List Mode Sets the list index in Step mode Remote command SOURce hw LIST INDex on page 511 Learn List Mode Data List Mode Starts the determination of the hardware setting for the selected list The data dete...

Страница 189: ...e Data List Mode Calls the editor for editing the selected list A list consists of any number of frequency level value pairs The currently selected list is displayed Frequency Hz Enter the frequency of the frequency power value pair Remote command SOURce hw LIST FREQuency on page 510 Power dBm Enter the level of the frequency power value pair Remote command SOURce hw LIST POWer on page 513 Goto Se...

Страница 190: ...Each list is saved to the R S SMF CompactFlash Card as a sepa rate file with the file prefix lsw The file name and the directory to which the file is saved are user selectable Save The list is saved under its current name List Range In List Mode Defines an index range in the current list by setting the start and stop index Only the values in the selected index range are processed in List mode all ...

Страница 191: ...on page 383 RF OFF Mode Attenuation Settings Selects the mode of the mechanical attenuator when the RF signal is switched off Note This feature is only available when the instrument is equipped with one of the mechanical attenuator options i e either option R S SMF B26 or R S SMF B27 The setting of the RF OFF mode is not affected by an instrument preset PRESET key RST and the Save Recall function ...

Страница 192: ...or CSV Excel file is available Remote command SOURce hw LIST DEXChange AFILe EXTension on page 507 Decimal Point List Mode Selects the decimal separator used in the ASCII data between decimal point and comma with floating point numerals Remote command SOURce hw LIST DEXChange AFILe SEParator DECimal on page 508 Column Separator List Mode Selects the separator between the frequency and level column...

Страница 193: ...ST DEXChange EXECute on page 509 5 3 6 2 Filling the List Mode Data automatically The Fill List Mode Data menu enables you to automatically set the values in the List Mode table The start line and the number of rows to be filled are defined under From and Range The column to be filled is selected under Select column to fill Depending on the selection here the default for start end and increment va...

Страница 194: ...ue Sets the end value for the frequency or the level entries Remote command n a Increment value Sets the increment for the frequency or the level entries Remote command n a Fill Fills the selected column in the set range with values starting with the start value and using the set increment Remote command n a 5 4 RF Level 5 4 1 Overview of RF Level Message Level overrange underrange If this message...

Страница 195: ...nds to the value at the RF output of the downstream instrument However the level provided at the RF output of the signal generator corre sponds to the level value set in the Level EMF dialog The instrument activates the Level Offset icon in the status bar when a level offset is set The correlation is as follows Level in header RF output level Level in menu Level offset Offset in menu 5 4 1 2 Setti...

Страница 196: ...tings are described in Chap ter 7 13 15 SOURce POWer Subsystem on page 522 5 4 2 1 Level Settings The offset free level level offset level limit and power resolution are set in the top sec tion of the dialog RF Output State Activates the RF output signal by selecting the RF checkbox in the Configure dialog of the RF Frequency block enabling the RF State in the RF Level EMF ALC UCOR dialog Remote c...

Страница 197: ...you work with NRP Z Power Control or not The value is not affected by an instrument preset PRESET key RST and the Save Recall function It is influenced only by the Factory Preset and the factory value is equal to maximum level Remote command SOURce hw POWer LIMit AMPLitude on page 527 Offset Level Sets the level offset relative to the RF level The level offset of a downstream instrument for exampl...

Страница 198: ...information about the data that has been used for calibrating the RF level By default the instrument uses correction data obtained in the factory before delivery In exceptional cases you can determine the calibration values with an R S NRP power sensor and use these values for the external level correction This feature is a protected function see Service Manual chapter 2 Adjustment Adjustment Data...

Страница 199: ...5 2 3 21 Factory Preset on page 132 resets the setting Remote command SOURce hw POWer EMF STATe on page 525 5 4 4 RF Level Sweep To open the Level Sweep menu select Level Control Configure Level Sweep or use the MENU key under Level Control The RF Level Sweep dialog is used to activate and configure a sweep for the RF level To open the dialog select Level Control Configure Level Sweep or use the M...

Страница 200: ...during the execution the signal generator stops the sweep and starts with the next trigger event at the initial value The Reset Sweep button sets the sweep to the start value Auto Sets an automatically repeated sweep cycle Example SOUR SWE POW MODE AUTO TRIG PSW SOUR AUTO SOUR POW MODE SWE Single Sets a single sweep cycle The sweep is triggered by the Execute Single Sweep button or by means remote...

Страница 201: ...he value entered with command SOUR POW MAN has no effect the command only triggers the next sweep step However the value has to be in the currently set sweep range start to stop In remote con trol only a step by step sweep from start to stop frequency is possi ble Extern Single Sets a single sweep cycle The sweep is triggered by an external trig ger signal Refer to the description of the rear pane...

Страница 202: ...ge 529 Specific Sweep Parameters The sweep parameters described in this topic are only available for particular emula tion languages For details see 1GP92 Remote Emulation with the R S SMF microwave signal gen erator Mode Specific Sweep Parameters Selects the RF frequency sweep mode Auto timer controlled Manual manually controlled Repeat Specific Sweep Parameters Sets the repetition mode On contin...

Страница 203: ... Sweep Displays the current level If Step is set the level for the next level step of the sweep is entered here Remote command SOURce hw POWer MANual on page 528 Shape RF Level Sweep Selects the cycle mode for a sweep sequence shape Sawtooth One sweep runs from the start level to the stop level The subsequent sweep starts at the start level again i e the shape of sweep sequence resembles a sawtoot...

Страница 204: ...ep steps This entry is effective for all sweep modes With the level sweep the logarithmic step width is a constant fraction of the current level This fraction is added to the current level The logarithmic step width is entered in dB Remote command SOURce hw SWEep POWer STEP LOGarithmic on page 569 Count RF Level Sweep Sets the number of sweep steps Remote command SOURce hw SWEep POWer POINts on pa...

Страница 205: ...xt Trigger Input Slope Sets the polarity of the active slope of an externally applied instrument trigger This setting affects the TRIGGER input BNC connector at the rear of the instrument or the AUX connector Positive activates the rising edge of the trigger signal Negative activates the falling edge of the trigger signal Remote command SOURce INPut TRIGger SLOPe on page 477 Edit Marker RF Level S...

Страница 206: ...vel Marker Switches in or off the selected marker If on the marker is output at the MARKER out put on reaching the mark Remote command SOURce hw SWEep POWer MARKer ch STATe on page 566 Marker Polarity Selects the polarity of the MARKER output signal The user programmable marker signal can be used for brightness control of an oscillo scope The output becomes active when the sweep run has reached th...

Страница 207: ...upled reverse power may affect the ALC readings Based on incorrect values ALC would have an impact on the signal to intermodulation ratio ALC States The following description basically explains the ALC states and their principle of opera tion In particular ALC OFF Sample Hold gives an overview on the function in terms of the equipment of the generator The R S SMF offers the ALC states On enables A...

Страница 208: ...escribed above Note that mechanical attenuators take a certain period of time no step attenuator The signal generator outputs the set level for 3 to 5 ms after level or frequency set ting during a Sample hold measurement Instruments equipped with one of the options R S SMF B26 or R S SMF B27 come without step attenuator The level control status is permanently displayed as a status message in the i...

Страница 209: ...page 524 5 4 5 2 External Level Control With external level control the level control is performed using an external DC signal applied at the EXT ALC input The signal can be provided either by a diode detector or a power meter A reference voltage has to be entered for the desired level at the RF output of the generator The External Level Control dialog is part of the Level dialog and is opened in ...

Страница 210: ...erforms up to four power measurements with the sensors either directly connected or via the R S NRP Z5 USB Sensor Hub The R S NRP Z5 USB Sensor Hub high speed USB 2 0 can host up to 4 R S NRP Z sensors and provides simultaneous internal and external triggering of all connected sensors You can directly connect the R S NRP Z Sensors to the standard NRP sen sor connectors of the hub The hub is connec...

Страница 211: ...evel used as reference value The signal generator shows the result in the NRP Z Power Viewer Settings settings dialog but you can also permanently display the readings in the block diagram Further functions of the R S SMF related to R S NRP Z power sensors are Acquisition of level correction data see Chapter 5 4 7 User Correction on page 245 The acquired level correction data is used to create and...

Страница 212: ...ne the settings are described in Chapter 7 12 Power Sensor Measurement Subsystems on page 386 Sensor Indicates the connector used for the detected sensors In remote control the sensors are set up using the SENSe commands The remote measurement is triggered by the READ query which also provides the measurement results The sensor is selected by suffix 1 2 3 or 4 in key word SENSe or READ of the com ...

Страница 213: ... can be retrieved with local State on or off The sensor is selected by suffix 1 2 3 or 4 in key word SENSe or READ of the com mand header Suffix 1 denotes the sensor connected to SENSOR suffix 2 the one at the first USB interface and suffix 3 and 4 are assigned to the sensors at the following USB interfa ces The suffix is identical to the index which is assigned automatically to each sensor upon c...

Страница 214: ...ently on the screen To select the peak power display it is required that the R S NRP Zxx sensor supports this feature On power on or connecting a sensor the average power value is set by default To enable the permanent display in the block diagram select Permanent Display State Remote command SENSe ch POWer DISPlay PERManent PRIority on page 396 Zero Power Sensors Activates the auto zero function ...

Страница 215: ...the frequency for measurement source User Remote command SENSe ch POWer FREQuency on page 399 Level Offset Activates and defines a level offset which is added to the measured value This allows e g an attenuator in the signal path to be considered The offset is always entered in dB irrespective of the selected unit for result display Remote command SENSe ch POWer OFFSet STATe on page 400 SENSe ch P...

Страница 216: ...reduce noise The used filter length is indicated in the field to the right see Filter Length User The filter length is set manually The filter length is entered in the entry window to the right As the fil ter length works as a multiplier for the time window this results in a constant measurement time Note The time window varies depending on the used sensor For most sensors it is fixed to 20 ms For...

Страница 217: ...TATe on page 395 Aperture Time Defines the acquisition time for the respective sensor provided the entry field is enabled see Use Default Aperture Time For example you can adjust the aperture time exactly to one signal period in order to obtain a sufficient low average value Remote command SENSe ch POWer APERture TIMe on page 396 Use SParameter Power Sensors Activates the use of the S Parameter co...

Страница 218: ...ey require storage capacity Remote command SENSe ch POWer LOGGing STATe on page 400 5 4 6 2 NRP Z Level Control With the NRP Z Level Control function you can achieve a very stable and accurate RF power supplied to your DUT With the aid of a downstream control circuit a CLPC Closed Loop Power Control you can detect frequency response characteristics of the used components such as losses due to cabl...

Страница 219: ... occur in sweep mode and also the NRP Z Power Viewer and NRP Z Level Control affect each other s functionality Hence the operating modes exclude each other as follows NRP Z Level Control automatically disables NRP Z Power Viewer and NRP Z Power Analysis and vice versa Activating the RF frequency sweep RF level sweep or the list mode instantly deac tivates a running NRP Z Level Control A running li...

Страница 220: ... calibrates the external power sensor by adjusting its reading at zero signal power For this purpose the RF power source must be switched off or disconnected from the sensor If a Rohde Schwarz power sensor receives an input power during the zeroing process it aborts zeroing and generates an error message Zeroing takes a few seconds depending on the sensor model Refer to the documentation of your p...

Страница 221: ...ion It is influenced only by the Factory Preset and the factory value is equal to maximum level Remote command SOURce hw POWer LIMit AMPLitude on page 527 Catch Range Sets the capture range of the control system Within the range Target Level Catch Range the power control locks and tries to achieve the target level Readings outside the range are not considered Remote command SOURce hw POWer SPC CRA...

Страница 222: ... Four traces are available The traces are automatically or manually assigned to the sensors In addition to the data traces a reference trace can be stored and recalled and or the trace indication can be frozen temporarily hold trace thus enabling com parison of traces Readout and comparison of particular values of the traces is possible by means of four markers Three measurement modes are provided...

Страница 223: ...splayed Full display diagram with pulse data list but no buttons are displayed and Full display only diagram is displayed The MENU and SETUP keys directly open a special power analysis menu Either the complete menu tree or the setup menu tree is available in addition to the power analy sis menu The instrument also provides this context sensitive menu by pressing the right mouse button in the measu...

Страница 224: ...urement by pressing the Start button in the NRP Z Power Analysis diagram 6 If necessary perform the further settings a Set markers with the rotary knob To access the markers activate the NRP Z Analysis Frequency Marker diagram view with the REARR key The markers are moved by means of the cursor and the roll key to the desired trace position Note To activate the NRP Z Analysis Frequency Marker view...

Страница 225: ...layed Figure 5 7 Fullscreen view only the diagram is displayed Measurement Diagram Access Select Level Control Configure NRP Z Power Analysis The dialog contains the measurement diagram with the Start button It provides access to the dialogs for setting up the measurement and sensor parameters for con figuring the diagram and trace indication and for storing hardcopies of the measure ment results ...

Страница 226: ...e Config menu Single starts a single measurement after the trigger continuous causes a restart of the measurement after each pass The measurement is triggered by pushing the Start button In continuous mode the Start button is replaced by a Stop button after the trigger which can be used to cancel the measurement A progress bar indicates the status of the measurement In time mode additional trigger...

Страница 227: ...s dialog see Configure Measure ment on page 217 Marker Power Analysis Opens the dialog for configuring markers see Define Markers on page 240 Gate Mode Power Analysis Opens the dialog for configuring the settings in gate mode see Configure Gate Mode on page 224 This mode assumes that you are working in measurement mode Mea surement Mode Power Analysis Time Pulse Data Power Analysis Opens the dialo...

Страница 228: ...race 2 etc If the default trace is already used the sensor has to be assigned manually in the trace dialog With the reference and hold traces you can compare traces Assign a reference curve to one trace and your measured values to a second one and switch on the dis play This feature provides to compare results directly in the graph or to show devia tions in a graph by using the Mathematics functio...

Страница 229: ...Wer SWEep STATe on page 445 2 NRP Zxx The current measurement results of the selected power sensor are the source for the trace data The index at the beginning of the sen sor name indicates the used connector for example 2 indicates that the sensor is connected via a USB interface The data is either con tinuously updated continuous measurement or represents a single measurement cycle single measur...

Страница 230: ...f the NRP Z Analysis diagram Depending on the measurement mode the following values are required Freq X Pow Y in Frequency mode Determine the parameters of the frequency reference curve SENSe POWer SWEep FREQuency REFerence DATA XVALues on page 403 SENSe POWer SWEep FREQuency REFerence DATA YVALues on page 403 Pow X Pow Y in Power mode Set the x and y axis values of the points A and B SENSe POWer ...

Страница 231: ...erand for further calculation Various nested computation steps are possible The math operation follows the formula T ch result T ch Operand1 T ch Operand2 How to proceed Determine T ch Operand1 in the entry field next to Tx and then select T ch Operand2 in the second entry field right to it The result T ch result is assigned to the above selected Trace If switched on the graph shows the resulting ...

Страница 232: ...for configuring the measurement in the frequency power or time domain In the lower section you can access subdialogs covering further setting parameters Configure Diagram on page 221 Configure Gate Mode on page 224 Configure Sensors on page 226 Configure Pulse Data on page 230 Configure Trigger on page 238 Setup Trace on page 213 Define Markers on page 240 To access the Configure NRP Z Analysis di...

Страница 233: ...ure ments the measurement range is changed according to the new setting If you change this value during a continuous measurement only the scaling of the x axis changes for measurement cycles that have been triggered before the change For subsequent measurement cycles the measurement range changes according to the new setting Remote command SENSe POWer SWEep FREQuency STARt on page 406 SENSe POWer ...

Страница 234: ...ailable in time mode Fast Fast measurement with an integration time of 2 ms for each measure ment step Normal A longer but more precise measurement integration time is 20 ms step Remote command SENSe POWer SWEep FREQuency TIMing MODE on page 407 SENSe POWer SWEep POWer TIMing MODE on page 424 Average Power Analysis Time mode only Selects the averaging factor in time mode This parameter is not avai...

Страница 235: ...gle or continuous mode in power analysis The measurement is started in the diagram using the Start button During measure ment the Start button is replaced by a Stop button which can be used to abort the measurement The progress bar indicates the status of the measurement Note For time mode an additional trigger is required see Configure Trigger on page 238 Single Selects single measurement Cont Se...

Страница 236: ...m area Off Auto scale is deactivated Switching from activated to deactivated the scaling is maintained Exp Course Fine Auto scale is activated Automatically selects the appropriate scaling of the y axis so that the trace is always visible The range is expan ded when a value is out of the right or the left end of scale value The step width is 5 dB for selection Exp Coarse and variable in the range ...

Страница 237: ...d in the diagram area Remote command DISPlay WINDow POWer SWEep GRID STATe on page 392 Bg Color Power Analysis Selects the background color of the diagram black or white The background color is also effective for the hardcopy of the diagram Remote command DISPlay WINDow POWer SWEep BACKground COLor on page 391 REARR list Power Analysis The REARR list button in the middle section opens the dialog f...

Страница 238: ...electable in time mode since gate measurement is a function of time Pulse Data View shows the graph and the corresponding pulse data Pulse data view indicates pulse data measurement results of the R S NRP Z8x sensor family Note This view is selectable in time mode since pulse data measurement is a function of time Note The toggle function always switches sequentially between the activated views Wh...

Страница 239: ...urement mode Mea surement Mode Power Analysis Time Diagram Power Analysis Returns to the NRP Z Analysis Diagram Configure Gate Mode The Configure NRP Z Analysis dialog is divided into several sections The Gate Mode button in the middle section opens the dialog for time gate settings For time measurement mode only Almost all R S NRP sensors also support time gated measurements of peak and aver age ...

Страница 240: ...te differ from the commands for reading the measurement values Command that defines the indication state for the diagram and for hardcopy TRACe POWer SWEep MEASurement GATE DISPlay ANNotation STATe on page 439 Commands that query the measured values CALCulate POWer SWEep TIME GATE ch AVERage on page 387 Queries the measured average power CALCulate POWer SWEep TIME GATE ch MAXimum on page 388 Queri...

Страница 241: ...e POWer SWEep TIME GATE ch STATe on page 389 CALCulate POWer SWEep TIME GATE ch AVERage on page 387 CALCulate POWer SWEep TIME GATE ch MAXimum on page 388 TRACe POWer SWEep MEASurement GATE DISPlay ANNotation STATe on page 439 Start Stop Gate Sets the start and the stop times for the respective gate Remote command CALCulate POWer SWEep TIME GATE ch STARt on page 389 CALCulate POWer SWEep TIME GATE...

Страница 242: ...h temperature After several hours of operation When low power signals are to be measured e g less than 10 dB above the lower measurement limit Switch off the RF power source for zeroing but do not disconnect it from the power sensor This proceeding keeps the thermal equilibrium and the zeroing process also compensates the noise that superimposes the measured signal e g from a broadband amplifier R...

Страница 243: ...SENSe ch POWer SWEep POWer SENSor OFFSet on page 419 SENSe ch POWer SWEep TIME SENSor OFFSet on page 421 Use Separate Frequency Power Analysis This setting is offered for measurements with DUTs that change the measurement fre quency like modulators thus changing the input frequency of the sensor The dialog differs depending on the measurement modes Power versus frequency measurement Activates the ...

Страница 244: ...h POWer SWEep FREQuency SENSor SRANge STOP on page 405 Use as X Scale Power Analysis Measurement Mode Frequency only Activates the use of the separate frequency min and max values for the scaling of the x axis Thus the trace for this sensor is visible in the diagram especially for frequency ranges that differ substantially from the generator settings If more than one sensor is active which use sep...

Страница 245: ...s and the measurement data on traces refer to Setup Trace on page 213 The Thresholds section covers the thresholds for detecting time values of a pulsed signal Thresholds are used to calculate the time parameters The thresh olds can either be related to power or voltage For information on parameters and terms refer to Voltage Power Related Pulse Data Analysis on page 232 Mesial Pulse Data Analysis...

Страница 246: ...yboard toggles between the different zoom levels In the remote control mode commands for setting the indication state differ from the commands for reading the values of the corresponding pulse data parameters In the description of the checkboxes the different remote control commands are listed as shown in the example below Commands that define the indication state for the diagram and for hardcopy ...

Страница 247: ...he voltage related parameters represent the normal case as the usual repre sentation when defining the pulse parameters rise fall time pulse width is U t To achieve a display with equivalent power related values the voltage related threshold values must be converted squared see example in table below Distal Mesial Proximal Voltage related 90 50 10 Power related 81 25 1 log Scale for example approx...

Страница 248: ...e on page 444 Proximal Pulse Data Analysis Sets the lower reference level in terms of percentage of the overall pulse level power or voltage related The proximal power defines the start of the rising edge and the end of the falling edge of the pulse Remote command SENSe ch POWer SWEep TIME SENSor PULSe THReshold POWer LREFerence on page 423 TRACe ch POWer SWEep PULSe THReshold POWer LREFerence on ...

Страница 249: ... Period Indicates the time the pulse signal needs to complete one cycle Remote command TRACe ch POWer SWEep MEASurement PULSe PERiod DISPlay ANNotation STATe on page 442 TRACe ch POWer SWEep MEASurement PULSe PERiod on page 440 Pulse Off Time Determines the time the pulse signal is low that means as long as the signal level is below the proximal value Remote command TRACe ch POWer SWEep MEASuremen...

Страница 250: ...nt TRANsition NEGative DURation DISPlay ANNotation STATe on page 442 TRACe ch POWer SWEep MEASurement TRANsition NEGative DURation on page 440 Pulse Start Time Pulse Stop Time Display the time when the pulse signal crosses the medial reference level Remote command TRACe ch POWer SWEep MEASurement TRANsition POSitive OCCurrence DISPlay ANNotation STATe on page 443 TRACe ch POWer SWEep MEASurement T...

Страница 251: ...h POWer SWEep MEASurement TRANsition POSitive OVERshoot DISPlay ANNotation STATe on page 443 TRACe ch POWer SWEep MEASurement TRANsition POSitive OVERshoot on page 440 TRACe ch POWer SWEep MEASurement TRANsition NEGative OVERshoot DISPlay ANNotation STATe on page 443 TRACe ch POWer SWEep MEASurement TRANsition NEGative OVERshoot on page 440 Signal Power Pulse Data Analysis Selects the power parame...

Страница 252: ... ch POWer SWEep MEASurement POWer AVERage on page 440 Pulse Power Pulse Data Analysis Selects which pulse power parameters are indicated in the diagram pulse data view only Note The Rearrange key or the key combination STR a toggles between the diagram views Top Base Power Indicate the pulse top and base level of the analyzed signal in dBm Remote command TRACe ch POWer SWEep MEASurement POWer PULS...

Страница 253: ...er NRP Z Analysis dialog The button is only active for time measurement mode For this mode the measurement start has to be known to the sensor as the measurement is controlled by the sensor Power Sensor Power Analysis Selects the power sensor to be set if more than one sensor is connected to the instru ment Remote command n a In remote control mode the sensor is selected via the numeric suffix in ...

Страница 254: ...er system from being activated too early if the trigger threshold is briefly under ranged or exceeded The dropout time parameter is useful when dealing with for example GSM signals with several active slots When measuring in synchronization with the signal a trigger event is to be produced at A but not at B or C As the RF power between the slots is below the threshold defined by Level and Hysteres...

Страница 255: ...certain trace Trace In the diagram the exact position must still be defined Markers and the marker list are available in the medium zoom level which is shown in the graph below To access the markers activate the NRP Z Analysis Time Marker view with the Rearrange key The markers are moved by means of the cursor and the roll key to the desired trace position One click activates the marker cursor the...

Страница 256: ... DEVice on page 410 Format Power Analysis Selects the file format Several bitmap graphic formats are offered In addition format csv is available which stores the measurement values as ASCII data The csv settings are performed in the Options submenu Remote command SENSe POWer SWEep HCOPy DEVice LANGuage on page 410 File name Power Analysis Indicates the file name The file name can be set either man...

Страница 257: ... pixels The first value of the size setting defines the width the second value the height of the image Remote command SENSe POWer SWEep HCOPy DEVice SIZE on page 412 Automatic Naming Selects that file names are created by rules if checked The filename includes at least number and optionally additional information which is determined below Remote command SENSe POWer SWEep HCOPy FILE NAME AUTO STATe...

Страница 258: ... NAME AUTO FILE YEAR STATe on page 417 SENSe POWer SWEep HCOPy FILE NAME AUTO FILE YEAR on page 416 Current Auto Number Automatic naming only Indicates the number which is used in the automatically generated file name Remote command SENSe POWer SWEep HCOPy FILE NAME AUTO FILE NUMBer on page 415 Resulting File Name Automatic naming only Indicates the automatically generated file name Remote command...

Страница 259: ...ace 2 in column 3 and 4 X Y values of trace 3 in column 5 and 6 X Y values of trace 4 in column 7 and 8 Example Trace1 X Hz Trace1 Y dBm Trace2 X Hz Trace2 Y dBm Trace3 X Hz Trace3 Y dBm Trace4 X Hz Trace4 Y dBm 10000 0 20 09 10000 0 19 09 10000 0 21 09 10000 0 22 07 10010 0 19 17 10010 0 18 17 10010 0 20 17 10010 0 20 14 10020 0 18 19 10020 0 17 19 10020 0 19 19 10020 0 21 56 10030 0 15 43 10030 ...

Страница 260: ... the import function The external files must have the file extension txt or csv These file formats are provided e g by the Microsoft Excel program The sepa rators for table columns and for decimal floating point numerals can be set In addition internally created User Correction data can be exported into ASCII files using the export function The amplitude can also be linearized automatically by mea...

Страница 261: ... display Remote command SOURce hw CORRection STATe on page 461 User Correction Value User Correction Indicates the current value for level correction Remote command SOURce hw CORRection VALue on page 461 SOURce hw CORRection PMETer TYPE on page 460 Measure User Correction Triggers the external measurement of the user correction of the level according to the user defined frequencies Remote command ...

Страница 262: ...ction allows to automatically enter any number of frequencies with freely selectable range and increment Using the Fill With Sensor function of the Edit sub menu requires only the entry of the frequency values The level values are automati cally acquired by the connected power sensor Power dB Enters the level correction value to which the specified frequency applies The values can be entered manua...

Страница 263: ...er a new name Note Save list only after filling both columns frequency and level otherwise the entries are lost Each list is saved to the R S SMFCompactFlash Card as a sepa rate file with the file prefix uco The file name and the directory to which the file is saved are user selectable Save The list is saved under its current name Remote command SOURce hw CORRection CSET SELect on page 460 SOURce ...

Страница 264: ... decimal separator used in the ASCII data between decimal point and comma with floating point numerals Remote command SOURce hw CORRection DEXChange AFILe SEParator DECimal on page 458 Column Separator User Correction Selects the separator between the frequency and level column of the ASCII table the user correction list is exported to or imported from Remote command SOURce hw CORRection DEXChange...

Страница 265: ...ction DEXChange EXECute on page 458 5 4 7 2 Filling the Correction List automatically The Fill Table menu enables you to automatically set the level correction values The start line and the number of rows to be filled are defined under From and Range The column to be filled is selected under Select column to fill Depending on the selection here the default for start end and increment value are set...

Страница 266: ...r Measurement Data The level correction values for the user correction list can be acquired by means of R S NRP power sensors The R S NRP sensors are connected to either the SENSOR connector or to one of the USB interfaces Configuration of the connection is performed in the Power Sensor menu see Chapter 5 4 6 1 NRP Z Power Viewer on page 196 The filling of the user correction list with measurement...

Страница 267: ...ill the table press the Execute button Fill User Correction Data with Sensor Enables you to fill the table with correction data acquired by a connected power sensor from Rohde Schwarz Sensor Displays connected sensors for selection List To Fill Indicates the used list file Include Zeroing Performs a zeroing procedure before acquiring the user correction data to improve precision Since during zeroi...

Страница 268: ...dulation 5 5 1 Overview of Modulation Analog modulation is a method used to transmit information of an LF Low Frequency signal in accordance with a second signal typically one of a higher frequency This is done by varying one or more properties of a high frequency waveform called the mod ulation or carrier signal with the modulating signal that contains the information to be transmitted The three ...

Страница 269: ...the menu with the same name which is opened using the MENU key 5 5 1 1 Enabling Disabling Analog Modulations using the MOD On Off Key The MOD ON OFF key switches the modulations on and off MOD ON OFF Press the MOD ON OFF key to enable disable analog modulations Pressing the key again restores the status that was active before the last switch off MOD OFF is displayed in the info line of the header ...

Страница 270: ...hould not exceed 1 V otherwise modulation distortions might occur External Analog Modulation Sources The external analog modulation inputs are configured in the dialogs of the selected modulation mode amplitude modulation frequency modulation or phase modulation The following settings are valid for all analog modulation modes Therefore these set tings are performed in all dialogs accordingly Coupl...

Страница 271: ...0 kOhm are available Remote command SOURce hw INPut MODext IMPedance ch on page 476 Polarity External Inputs Sets the polarity of the external modulation signal Normal The RF level is ON while the level is HIGH Inverse The RF level is ON while the level is LOW Remote command SOURce hw DM EXTernal POLarity ch on page 463 Simultaneous Operation of Several Modulations or Other Operating Modes The tab...

Страница 272: ...itude Modulation dialog select Modulation Configure Ampli tude Modulation or use the MENU key under Modulation For a fully equipped instrument two LF generators and a noise generator are available as internal sources In the upper section of the dialog the amplitude modulation is activated and config ured Additionally the scan state and the ratio can be set In the External Inputs sec tion the exter...

Страница 273: ...ermodulation if the maximal value for modulation depth is exceeded see data sheet Remote command SOURce hw AM ch DEPTh on page 446 AM Sensitivity Sets the input sensitivity of the of the externally applied modulation signal at the EXT1 2 input in db V Note This function is available when scanning state is on Remote command SOURce hw AM ch SENSitivity on page 447 Scan State Activates deactivates th...

Страница 274: ...iod on page 499 SOURce hw LFOutput ch SHAPe TRIangle PERiod on page 500 5 5 3 Frequency Modulation FM Frequency modulation requires option R S SMF B20 AM FM PhiM Log AM Modula tor An internal and or external source can be selected for frequency modulation Two LF modulation generators and a noise generator are available as internal sources for a fully equipped instrument Two tone FM is possible by ...

Страница 275: ...hese settings affect all modulations which use the same external modulation sources For a detailed description see section External Analog Modulation Sources on page 255 State Activates frequency modulation Activation of FM deactivates phase modulation Remote command SOURce hw FM ch STATe on page 468 Source Selects the modulation signal source for FM LF Generator 1 2 Uses one of the internal LF ge...

Страница 276: ...M deviation is available Low Noise Frequency modulation with phase noise and spurious characteristics close to CW mode The range for modulation bandwidth and FM devi ation is reduced see data sheet Remote command SOURce hw FM MODE on page 467 Shape Selects the waveform shape of the LF signal Remote command SOURce hw LFOutput ch SHAPe on page 497 Frequency LF Generator The frequency of the LF gener...

Страница 277: ...ons or Other Operating Modes on page 256 for an overview in detail An internal and or external source can be selected for phase modulation Two LF mod ulation generators and a noise source are available as internal sources in a fully equip ped instrument Two tone ɸM is possible by simultaneously switching on the external and internal or both internal sources Two external input connectors for extern...

Страница 278: ...EXT 1 2 Uses the externally applied modulation signal EXT1 2 for phase modulation Noise Generator Uses the internally generated noise signal Remote command SOURce hw PM ch SOURce on page 522 Ratio PM 2 1 Sets the deviation ratio of PM2 to PM11 For example if you set 50 ratio and the deviation in modulation channel 1 is 10 kHz the deviation in channel 2 results in 5 kHz Remote command SOURce hw PM ...

Страница 279: ...e command SOURce PM ch DEViation on page 520 Shape Selects the waveform shape of the LF signal Remote command SOURce hw LFOutput ch SHAPe on page 497 Frequency LF Generator The frequency of the LF generator 1 2 This setting affects all analog modulations which use the LF generator as the internal modulation source It depends on the used shape Sine Sets the repetition frequency of the internal sign...

Страница 280: ...ont panel of the instrument This modulation mode requires option R S SMF B20 Activating a digital modulation mode can deactivate another digital or analog modula tion modes For an overview about the operating modes which operate simultaneously see Simultaneous Operation of Several Modulations or Other Operating Modes on page 256 5 5 5 1 Digital Modulation Menu To open the Phase Modulation menu sel...

Страница 281: ... Pulse Genera tor Selects the internal pulse generator as source for ASK modulation Random Selects random pulses generated by the noise generator as the source for ASK modulation Remote command SOURce hw DM ASK SOURce on page 462 Depth ASK Sets the modulation depth for ASK modulation Remote command SOURce hw DM ASK DEPTh on page 462 State FSK Activates deactivates FSK modulation Remote command SOU...

Страница 282: ...le for the basic unit of the R S SMF equipped with the pulse modulation options The external signal is input via the PULSE IN connector at the front of the instrument The connector can be used as trigger input for internal pulse modulation The external pulse signal is output at the VIDEO connector at the back of the instrument Narrow pulse modulation is provided by option R S SMF K3 Internal pulse...

Страница 283: ...og see Chapter 5 6 3 Pulse Generator on page 295 Option R S SMF K27 enables the generation of pulse trains For description of the pulse train dialog see Chapter 5 6 3 2 Pulse Train Generation on page 299 In the Input Trigger Settings section the external input and trigger are configured State Activates pulse modulation If modulation source Pulse Generator is selected requires option R S SMF K23 th...

Страница 284: ...olarity External Source only Selects the polarity of the modulation signal Normal The RF signal is On while the level is high at the modulation input Inverted The RF level is ON while the level is LOW at the modulation input Remote command SOURce hw PULM POLarity on page 539 Synchronize to internal clock Pulse Modulation External Source only When enabled the external modulation signal is synchroni...

Страница 285: ...r and the internal LF generator signal is the signal source for the fre quency modulation Normal FM mode is used Using external modulation signals is not possible for chirp modulation The following graph shows the FM demodulated signal of chirped pulses with a chirp bandwidth of 80 MHz and a pulse width of 80 µs Chirp direction is up Chirp modulation is available for the basic unit R S SMF frequen...

Страница 286: ...ngs Access Select Modulation config Chirp Modulation The Chirp Modulation dialog contains the parameters for configuring the modula tion and trigger settings State Chirp Modulation Activates deactivates chirp modulation Note Any active modulation is automatically switched off when chirp modulation is activated The pulse generator signal is provided at the PULSE OUT output the sync signal at the SY...

Страница 287: ...10 MHz at a center frequency of 1 GHz leads to a frequency mod ulation between 995 MHz and 1005 MHz The maximum bandwidth depends on the current RF frequency see data sheet If the bandwidth is too high for the RF frequency or the frequency is out of the bandwidth range the R S SMF sets the maximum bandwidth and generates an error message Remote command SOURce hw CHIRp BANDwidth on page 449 Pulse P...

Страница 288: ...ternal trigger event Ext Gated The chirp modulation signals are gated by an external gate signal Remote command SOURce hw CHIRp TRIGger MODE on page 452 Trigger Level Chirp Modulation Selects the external trigger level threshold TTL 0 5 V or 2 5 V Remote command SOURce hw CHIRp TRIGger EXTernal LEVel on page 451 External Trigger Input Slope Chirp Modulation Sets the polarity of the active slope of...

Страница 289: ...frequency settings for the LF generator can be made in the LF Gen Noise menu LF Output menu and analog modulation menus A change to the frequency of the LF generator automatically has an effect on modula tion if the LF generator is selected as the modulation source For example a change to the frequency of the first LF generator automatically has an effect on the amplitude modulation if the first L...

Страница 290: ...section provides frequency and waveform shape settings for the first LF generator According to LF Gen 1 the settings for the second LF generator are made in the LF Gen 2 section Frequency LF Generator The frequency of the LF generator 1 2 This setting affects all analog modulations which use the LF generator as the internal modulation source It depends on the used shape Sine Sets the repetition fr...

Страница 291: ...nd SOURce hw LFOutput ch SHAPe PULSe WIDTh on page 498 Pulse Duty Cycle LF Generator This feature is available for shape mode Pulse only Sets the duty cycle for the shape pulse Remote command SOURce hw LFOutput ch SHAPe PULSe DCYCle on page 498 Triangle Period LF Generator This feature is available for shape mode Triangle only Sets the period of the generated triangle shape The period determines t...

Страница 292: ...el distribution and the bandwidth for the noise source are provided in the Noise Generator section of the dialog The settings affect all analog modulations which use the noise generator as the internal modulation source Distribution Noise Selects the noise power density distribution of the noise Gaussian The noise power density has a Gaussian distribution Equal The noise power density has an even ...

Страница 293: ...LF Gen Noise Configure LF Frequency Sweep or use the MENU key under LF Gen Noise The LF sweep mode is activated and the sweep mode is selected The buttons are used to reset the LF sweep all sweep modes or to execute the LF sweep Single mode The sweep range sweep spacing and dwell time are set in the bottom of the section Additionally you can set the trigger slope State Activates the LF frequency s...

Страница 294: ...con trolled by the dwell time If one cycle is completed the instrument waits for the next trigger event To trigger the sweep use Execute Single Sweep button or the cor responding remote control commands for example TRG Example SOUR LFO SWE FREQ MODE AUTO TRIG0 SWE SOUR SING SOUR LFO FREQ MODE SWE SOUR LFO SWE FREQ EXEC Step Generates the sweep signal step by step manually triggered To perform the ...

Страница 295: ...igger signal The step width corresponds to the step width set for the rotary knob Example SOUR LFO SWE FREQ MODE AUTO TRIG0 SWE SOUR EXT SOUR LFO FREQ MODE SWE External trigger Extern Start Stop Generates a continuously repeating sweep signal that is started stopped and restarted by subseqeunt external trigger events The sweep steps are performed automatically controlled by the dwell time Refer to...

Страница 296: ...uages For details see 1GP92 Remote Emulation with the R S SMF microwave signal gen erator Mode Specific Sweep Parameters Selects the RF frequency sweep mode Auto timer controlled Manual manually controlled Repeat Specific Sweep Parameters Sets the repetition mode On continuously Off once Start Trigger Specific Sweep Parameters Selects the mode to initiate a sweep Auto starts immediately Single sta...

Страница 297: ...requency value entered as an absolute value in Hz Logarithmic Takes the value entered as a lograithmic value that means as a con stant fraction of teh current frequency in Remote command SOURce hw LFOutput SWEep FREQuency SPACing on page 489 Shape Selects the waveform shape of the sweep signal Sawtooth The sweep runs from the start to the stop frequency Each subse quent sweep starts at the start f...

Страница 298: ...requency sweep steps At each step this value is added to the current frequency Depending on the Spacing mode you have set the corresponding parameter is dis played Step Lin The step width is a constant value in Hz Remote command SOURce hw LFOutput SWEep FREQuency STEP LINear on page 490 Step Log The step width is determined logarithmically in that means as a constant fraction of the current freque...

Страница 299: ...WELl on page 483 Ext Trigger Input Slope Sets the polarity of the active slope of an externally applied instrument trigger This setting affects the TRIGGER input BNC connector at the rear of the instrument or the AUX connector Positive activates the rising edge of the trigger signal Negative activates the falling edge of the trigger signal Remote command SOURce INPut TRIGger SLOPe on page 477 Edit...

Страница 300: ...ated the sig nal level at the MARKER output changes on reaching this frequency mark Remote command SOURce LFOutput SWEep FREQuency MARKer ch FREQuency on page 485 State LF Frequency Marker Switches in or off the selected marker If on the marker is output at the MARKER out put on reaching the mark Remote command SOURce LFOutput SWEep FREQuency MARKer ch FSTate on page 485 Amplitude Marker LF Freque...

Страница 301: ...LF output To open the LF Output dialog select LF Output Configure LF Output or use the MENU key under LF Output The LF Output requires option R S SMF B20 In the upper section of the dialog the LF output is activated and configured The LF Generators section displays the parameters of the LF Generators In the External Inputs section the external inputs are configured For a detailed description see E...

Страница 302: ...tput sig nal Noise Gener ator Selects the internal noise signal The LF output signal is noise either with gaussian distribution or equal distribution Remote command SOURce LFOutput ch SOURce on page 483 Output Voltage LF Output This feature is available for monitoring mode Off only Sets the output voltage of the LF output The entered value determines the peak volt age Remote command SOURce LFOutpu...

Страница 303: ...tion frequency of the internal signal see Frequency Remote command SOURce hw LFOutput ch SHAPe PULSe PERiod on page 498 SOURce hw LFOutput ch SHAPe TRAPeze PERiod on page 499 SOURce hw LFOutput ch SHAPe TRIangle PERiod on page 500 5 6 2 2 LF Level Sweep The LF Level Sweep dialog is used to configure and activate an LF level sweep sig nal To open the dialog select LF Output Configure LF Level Sweep...

Страница 304: ...on page 502 Mode LF Level Sweep Selects the sweep instrument operating mode and sweep mode If you change the sweep mode during the execution the signal generator stops the sweep and starts with the next trigger event at the initial value The Reset Sweep button sets the sweep to the start value Auto Sets an automatic repeated sweep cycle Example SOUR LFO SWE VOLT MODE AUTO TRIG LFVS SOUR AUTO SOUR ...

Страница 305: ...LFVS SOUR SING SOUR LFO VOLT MODE SWE SOUR LFO VOLT MAN 14kHz SOUR LFO VOLT MAN 16kHz Extern Single Sets a single sweep cycle The sweep is triggered by an external trig ger signal The external trigger signal is input at the rear of the instrument BNC connector TRIGGER or AUX connector The Reset Sweep button resets the sweep to the start flevel Example SOUR LFO SWE VOLT MODE MAN TRIG LFVS SOUR EXT ...

Страница 306: ...age 594 SOURce LFOutput VOLTage MODE on page 502 Specific Sweep Parameters The sweep parameters described in this topic are only available for particular emula tion languages For details see 1GP92 Remote Emulation with the R S SMF microwave signal gen erator Mode Specific Sweep Parameters Selects the RF frequency sweep mode Auto timer controlled Manual manually controlled Repeat Specific Sweep Par...

Страница 307: ...Output VOLTage STARt on page 502 Stop Level LF Level Sweep Sets the stop frequency Remote command SOURce LFOutput VOLTage STOP on page 503 Current Level LF Level Sweep Displays the current frequency If Step is set the frequency for the next frequency step of the sweep is entered here Remote command SOURce LFOutput VOLTage MANual on page 501 Shape LF Level Sweep Selects the cycle mode for a sweep s...

Страница 308: ...Level Sweep Sets the step width for the individual sweep steps Remote command SOURce LFOutput SWEep VOLTage STEP LINear on page 496 Count LF Level Sweep Sets the number of sweep steps Remote command SOURce LFOutput SWEep VOLTage POINts on page 494 Dwell Time LF Level Sweep Sets the dwell time The dwell time determines the duration of the individual sweep steps Remote command SOURce LFOutput SWEep ...

Страница 309: ... SOURce INPut TRIGger SLOPe on page 477 Edit Marker Level Sweep Opens the LF Level Marker menu This menu is used for setting and editing the mark ers For a detailed description see Chapter 5 6 2 3 LF Level Marker Settings on page 294 Remote command n a 5 6 2 3 LF Level Marker Settings The LF Level Marker dialog is called via the EDIT MARKER button in the LF Level Sweep dialog Marker LF Level Marke...

Страница 310: ...ker output polarity Remote command SOURce hw SWEep MARKer OUTPut POLarity on page 564 Active Marker LF Level Marker Selects the active marker The active marker is output with an higher voltage than all other markers Remote command SOURce LFOutput SWEep VOLTage MARKer ACTive on page 493 5 6 3 Pulse Generator The Pulse Generator dialog is used to configure and activate a pulse modulation sig nal 5 6...

Страница 311: ...page 299 A pulse train is a sequence of pulses with user defined on and off times The on time off time value pairs are defined in a pulse train list The currently used pulse train file is displayed in the sub menu Remote command SOURce hw PULM MODE on page 538 Pulse Period Pulse Generator Sets the period of the generated pulse The period determines the repetition frequency of the internal signal R...

Страница 312: ...ternal modulation signals Positive Retains the polarity of the pulse output signal The pulse output signal is high during the pulse width and low during the rest of the pulse period Negative Inverts the polarity of the pulse signal Accordingly the pulse output signal is low during the pulse width and otherwise high Remote command SOURce hw PGENerator OUTPut POLarity on page 518 Trigger Mode Pulse ...

Страница 313: ... Channel 2 Indicates the sync signal The sync signal starts after a trigger delay of typically 50 ns see specifications It is repeated after the set pulse period of 300 ns as long as the gate signal is active Channel 3 Indicates the pulse signal The first pulse starts after the pulse delay of 100 ns The second pulse starts after the set pulse period Note The sync signal is output at the PULSE SYNC...

Страница 314: ...ger 10 kOhm or 50 Ohm Remote command SOURce hw PULM TRIGger EXTernal IMPedance on page 545 5 6 3 2 Pulse Train Generation In Pulse Train mode the instrument provides the associated parameters for configur ing a user defined pulse train signal A pulse train is a sequence of pulses with user defined on and off times The ON Time OFF Time value pairs are defined in a pulse train table and can be store...

Страница 315: ...tor for each value pair 8 When completed save the file 9 Starting in the block diagram perform the following steps to activate signal genera tion a Select Mod Gen config Pulse Generator Video Sync Signal State On b Select Modulation config Pulse Modulation State On c Activate RF signal generation in the RF Frequency block The R S SMF generates an RF pulse sequence signal according to the values sp...

Страница 316: ...ber of value pairs and save your list in a file The file name is displayed in the header of the dialog ON Time μs Determines the length of the respective pulse signal is high Remote command SOURce hw PULM TRAin ONTime on page 543 OFF Time μs Determines the time length the signal level of the pulse remains low Remote command SOURce hw PULM TRAin OFFTime on page 542 Count Sets the number of repetiti...

Страница 317: ...es the marked row Delete Range Deletes the selected number of rows including the marked row The number of rows to be inserted can be defined in an entry window Save As Opens the file dialog to save the list under a new name Each list is saved to the CompactFlashTM card as a separate file with the file prefix pulstrn The file name and the directory to which the file is saved are user selectable Sav...

Страница 318: ... to be imported into a pulse train list source or the ASCII file the pulse train list is exported destination in Remote command SOURce hw PULM TRAin DEXChange AFILe CATalog on page 547 SOURce hw PULM TRAin DEXChange AFILe SELect on page 548 Select Destination Source Import Export Pulse Train Files Opens the File Manager for selecting the pulse train list to be exported source into an ASCII file or...

Страница 319: ...xed has to be selected If Auto is selected this field is read only Remote command SOURce POWer ATTenuation on page 525 Fixed Range in PEP Attenuation Settings Displays the level range in which the level is set without interruption for the attenuator mode Fixed setting Remote command OUTPut hw AFIXed RANGe LOWer on page 383 OUTPut hw AFIXed RANGe UPPer on page 383 RF OFF Mode Attenuation Settings S...

Страница 320: ...ncy Multiplier By connecting an R S SMZ Frequency Multiplier the R S SMF indicates a separate block The instrument automatically detects the connected multiplier model and dis plays it accordingly in the block including the frequency range If a frequency multiplier with mechanical level control is connected the frequency range changes to the corre sponding scale setting for the adjusting screw The...

Страница 321: ...or a description of the interface refer to Chapter 6 1 5 Serial Interface on page 312 GPIB IEC IEEE Bus Interface VISA address string GPIB primary address INSTR no secondary address Optional GPIB bus interfaces according to standard IEC 625 1 IEEE 488 1 are located on the rear panel of the instrument For a description of the interface refer to Chapter 6 1 6 GPIB Interface IEC IEEE Bus Interface on...

Страница 322: ...s and Protocols on page 306 for an overview Instrument access via VXI 11 or HiSLIP protocols is achieved from high level program ming platforms using VISA as an intermediate abstraction layer VISA encapsulates the low level VXI or GPIB function calls and thus makes the transport interface trans parent for the user A VISA installation is a prerequisite for remote control using the following interfa...

Страница 323: ...ds Common commands their function and syntax are precisely defined in stan dard IEEE 488 2 They are employed identically on all instruments if imple mented They refer to functions such as management of the standardized sta tus registers reset and self test Instrument control commands refer to functions depending on the features of the instrument such as frequency settings Many of these commands ha...

Страница 324: ...s LAN device name INSTR TCPIP host address port SOCKET Where TCPIP designates the network protocol used host address is the IP address or host name of the device LAN device name defines the protocol and the instance number of a subinstru ment inst0 selects the VXI 11 protocol optional default hislip0 selects the newer HiSLIP protocol INSTR indicates the instrument resource class optional port dete...

Страница 325: ...d the reques ted command but is delivered to the TCP IP buffers For more information see also the application note 1MA208 Fast Remote Instrument Control with HiSLIP 6 1 3 2 VXI 11 Protocol The VXI 11 standard is based on the ONC RPC Open Network Computing Remote Procedure Call protocol which in turn relies on TCP IP as the network transport layer The TCP IP network protocol and the associated netw...

Страница 326: ... to remote state when a remote command is sent UNLESS NREN was sent before GTR Go to Remote Enables automatic transition from local state to remote state by a subsequent remote command after NREN was sent GET Group Execute Trigger Triggers a previously active instrument function e g a sweep The effect of the command is the same as with that of a pulse at the external trigger signal input LLO Local...

Страница 327: ...Where ASRL 0 9 determines the number of the COM port on the controller side that has to be used for the serial connection Access via a bluetooth device requires the entry of the bluetooth pin in addition see Chapter 5 2 3 19 Security on page 125 To enable an error free and correct data transmission the parameters of the generator and the controller must have the same setting The serial interface i...

Страница 328: ...act on instruments previously addressed as listeners Universal Commands Universal commands are encoded in the range 10 through 1F hex They affect all instruments connected to the bus and do not require addressing Command Effect on the instrument DCL Device Clear Aborts the processing of the commands just received and sets the com mand processing software to a defined initial state Does not change ...

Страница 329: ... remote control addresses 0 through 30 are allowed The GPIB address is maintained after a reset of the instrument settings Changing the GPIB address of the instrument The GPIB address can be changed manually or using a remote control command 1 Manually press the SETUP key 2 Select Remote GPIB 3 Enter the GPIB address 4 Remotely use the remote control command SYST COMM GPIB ADDR 18 6 1 7 LXI Browse...

Страница 330: ...le the fre quency and level display explicitly This is useful when you remotely control the instru ment from a different location For information on how to disable the frequency and level display refer to Annotation Frequency on page 130 and Annotation Amplitude on page 130 Refer to Chapter 6 2 3 Examples on page 316 for practical examples on setting up of a remote control link and starting of a r...

Страница 331: ...REM LLO state The automatic transition from local state to remote state by a subsequent remote command and the command GTL are disabled To return to manual mode is only possible via remote control 4 Unlock the LOCAL key with GTR 6 2 2 Returning to Manual Operation Before returning to manual control command processing must be completed Other wise the instrument switches back to remote control immed...

Страница 332: ...nt CALL IBWRT generator RST CLS d Set instrument to new address CALL IBWRT generator SYST COMM GPIB ADDR 18 e Inform controller about new address CALL IBPAD generator 18 The GPIB address of the instrument is changed 3 To return to manual operation sent CALL IBLOC generator or press the LOCAL key at the front panel 6 2 3 2 Remote Control over LAN using VXI 11 Protocol In this example the I O softwa...

Страница 333: ...nstrument is preconfigured for networks using DHCP dynamic host configuration protocol If this configuration is used enter the computer name in the position of the IP address To enable the external controller to communicate with the R S SMF via TCP IP proto col set up a remote control link as follows 1 Make sure that the controller and the instrument are connected in the network net work cable and...

Страница 334: ... connected instruments and lists all detected instu ments in the Resource list Note The search may take some time particularly in large networks 7 Select the required instrument and confirm with Select The Find and select resource dialog closes and R S VISA indicates the instru ments IP address in the Resource field of the main application window 8 As an alternative to the IP address you can assig...

Страница 335: ...ice IP Address or host name as shown in the figure and confirm with OK The Alias name is assigned to the instrument d Close the dialog The R S SMF is now registered in the program and can be addressed via the resource string or alias name 9 In the main window select Connect R S VISA establishes the connection to the R S SMF Now you can send settings to configure the instrument and receive its resp...

Страница 336: ...R S VISA Tester and establish the connection to the R S SMF see Configuring the controller on page 318 2 In the R S VISA Basics tab enter a SCPI command e g IDN and confirm with Query The instrument is switched to remote control when it receives a command from the controller 3 Select Read to obtain the instrument response Tip If the Show Log checkbox is checked R S VISA displays each VISA function...

Страница 337: ...anual operation see Chapter 6 2 2 Returning to Manual Opera tion on page 316 Tip Switching from manual operation to remote control and vice versa does not affect the other instrument settings 6 2 3 3 Remote Control over LAN using Socket Communication This chapter provides an example on how to establish a remote control connection over telnet protocol and a simple sockets based program example that...

Страница 338: ...anual 1167 2319 02 12 The connection to the instrument is set up and you can send remote control com mands 3 Even if the cursor is not visible on the screen enter blind a remote control com mand and confirm with Enter Starting a Remote Control Session ...

Страница 339: ...et communication to R S SMF and opens a simple user interface very similar to the telnet which allows input of commands To enable real automation further development of the program is required TcpClient h include string defines structs for socket handling include netinet in h using namespace std typedef struct sockaddr_in SockAddrStruct typedef struct hostent HostInfoStruct class TcpClient public ...

Страница 340: ...pClient void connectToServer string hostname int port void disconnect void transmit string txString void receive string rxString string getCurrentHostName const int getCurrentPort const private string currentHostName int currentPort int currentSocketDescr SockAddrStruct serverAddress HostInfoStruct currentHostInfo bool clientIsConnected int receiveBufferSize include netdb h include netinet in h in...

Страница 341: ...ketDescr 0 currentHostName currentPort 0 currentHostInfo NULL clientIsConnected false printf can t create socket n serverAddress sin_family currentHostInfo h_addrtype serverAddress sin_port htons currentPort memcpy char serverAddress sin_addr s_addr currentHostInfo h_addr_list 0 currentHostInfo h_length if connect currentSocketDescr struct sockaddr serverAddress sizeof serverAddress 0 throw string...

Страница 342: ...receive string rxString if clientIsConnected throw string connection must be established before any data can be received n char receiveBuffer new char receiveBufferSize memset receiveBuffer 0 receiveBufferSize bool receiving true while receiving int receivedByteCount recv currentSocketDescr receiveBuffer receiveBufferSize 0 if receivedByteCount 0 throw string error while receiving data n rxString ...

Страница 343: ...t TcpClient client switch argc case 3 useSingleCommand true singleCommand argv 2 case 2 hostname argv 1 break default printUsage return 1 try client connectToServer hostname port bool terminate false while terminate char buffer 1024 if useSingleCommand input singleCommand send string else cin getline buffer 1024 input buffer if input end terminate true if terminate client transmit input send strin...

Страница 344: ...ral mnemonics keywords Queries are formed by appending a question mark directly to the header The commands can be either device specific or device independent common com mands Common and device specific commands differ in their syntax 6 3 1 Syntax for Common Commands Common device independent commands consist of a header preceded by an aster isk and possibly one or more parameters Table 6 2 Exampl...

Страница 345: ...y STOP numeric value SENSe LIST FREQuency numeric_value numeric_value Long and short form 330 Numeric Suffixes 330 Optional Mnemonics 331 6 3 2 1 Long and short form The mnemonics feature a long form and a short form The short form is marked by upper case letters the long form corresponds to the complete word Either the short form or the long form can be entered other abbreviations are not permitt...

Страница 346: ...certain mnemonics to be inserted into the header or omitted These mnemonics are marked by square brackets in the description The instrument must recognize the long command to comply with the SCPI standard Some commands are considerably shortened by these optional mnemonics Example Definition HCOPy IMMediate Command HCOP IMM is equivalent to HCOP Optional mnemonics with numeric suffixes Do not omit...

Страница 347: ... characters the exponent must lie inside the value range 32000 to 32000 The exponent is introduced by an E or e Entry of the exponent alone is not allowed Example SENS FREQ STOP 1500000 SENS FREQ STOP 1 5E6 Units For physical quantities the unit can be entered If the unit is missing the basic unit is used Allowed unit prefixes are G giga MA mega MOHM MHZ K kilo M milli U micro N nano Example SENSe...

Страница 348: ...e representation of miss ing values Example Setting command SENSe LIST FREQ MAXimum Query SENS LIST FREQ Response 3 5E9 Queries for special numeric values The numeric values associated to MAXimum MINimum DEFault can be queried by adding the corresponding mnemonic after the quotation mark Example SENSe LIST FREQ MAXimum Returns the maximum numeric value as a result 6 3 3 3 Boolean Parameters Boolea...

Страница 349: ...low During the trans mission of these data bytes all end or other control signs are ignored until all bytes are transmitted 0 specifies a data block of indefinite length The use of the indefinite format requires a NL END message to terminate the data block This format is useful when the length of the transmission is not known or if speed or other considerations prevent segmentation of the data int...

Страница 350: ...arated by a vertical stroke Only one of these mnemonics needs to be included in the header of the command The effect of the command is independent of which of the mnemonics is used Example DefinitionSENSE BANDwidth BWIDth RESolution numeric_value The two following commands with identical meaning can be created SENS BAND RES 1 SENS BWID RES 1 Mnemonics in square brackets are optional and may be ins...

Страница 351: ...e always begins with the complete path 6 3 6 Responses to Queries A query is defined for each setting command unless explicitly specified otherwise It is formed by adding a question mark to the associated setting command According to SCPI the responses to queries are partly subject to stricter rules than in standard IEEE 488 2 The requested parameter is transmitted without a header Example HCOP PA...

Страница 352: ... order to avoid wrong measurement results they must be serviced sequentially Keeping the order is called synchronization between the controller and the instrument Setting commands within one command line even though they can be implemented as sequential commands are not necessarily serviced in the order in which they have been received To make sure that commands are actually executed in a certain ...

Страница 353: ...ogramming the controller OPC Sets the Operation Complete bit in the ESR after all previous commands have been exe cuted Setting bit 0 in the ESE Setting bit 5 in the SRE Waiting for service request SRQ OPC Stops command processing until 1 is returned This occurs when all pending opera tions are completed Send OPC directly after the command whose processing must be terminated before other commands ...

Страница 354: ... ESE ESE 1 2 Send the overlapped command without OPC OPC or WAI 3 Poll the operation complete state periodically with a timer using the sequence OPC ESR A return value LSB of 1 indicates that the overlapped command has finished 6 5 Status Reporting System The status reporting system stores all information on the current operating state of the instrument and on errors which have occurred This infor...

Страница 355: ...ard Event Status Summary Bit MAV Message Available in Output Queue QUES Questionable Status Summary Bit 2 Error Event Queue 1 0 not used Note This legend explains the abbreviations to the Status Byte Register The R S SMF uses the following status registers Status Byte STB and Service Request Enable SRE see Chapter 6 5 3 Sta tus Byte STB and Service Request Enable Register SRE on page 343 Status Re...

Страница 356: ...d in the overview Error Event Queue The error event queue contains all errors and events that have occurred in the past When reading the queue the instrument starts with the first occurred error event All status registers have the same internal structure SRE ESE The service request enable register SRE can be used as ENABle part of the STB if the STB is structured according to SCPI By analogy the E...

Страница 357: ...ted NTR bit decides whether the EVENt bit is set to 1 NTR bit 1 the EVENt bit is set NTR bit 0 the EVENt bit is not set This part can be written into and read as required Its contents are not affected by reading EVENt The EVENt part indicates whether an event has occurred since the last reading it is the memory of the condition part It only indicates events passed on by the transition filters It i...

Страница 358: ... an informative error mes sage This procedure is to be recommended since it considerably reduces the problems involved with remote control 3 QUEStionable status register summary bit The bit is set if an EVENt bit is set in the QUEStionable status register and the associated ENABle bit is set to 1 A set bit indicates a questionable instrument status which can be speci fied in greater detail by quer...

Страница 359: ... hence cannot be executed 3 Device dependent Error This bit is set if a device dependent error occurs An error message with a number between 300 and 399 or a positive error number which denotes the error in greater detail is entered into the error queue 4 Execution Error This bit is set if a received command is syntactically correct but cannot be performed for other reasons An error message with a...

Страница 360: ... system is to monitor the status of one or several devices in a measuring system To do this and react appropriately the controller must receive and evaluate the information of all devices The following standard methods are used Service request SRQ initiated by the instrument Serial poll of all devices in the bus system initiated by the controller to find out who sent an SRQ and why Query of a spec...

Страница 361: ...ntroller 6 5 7 3 Query of an instrument status Each part of any status register can be read using queries There are two types of commands The common commands ESR IDN IST STB query the higher level registers The commands of the STATus system query the SCPI registers STATus QUEStionable The returned value is always a decimal number that represents the bit pattern of the queried register This number ...

Страница 362: ...r command processing and input buffer Yes Yes Yes 1 The first command in a command line that immediately follows a PROGRAM MESSAGE TERMINA TOR clears the output buffer 6 6 General Programming Recommendations Initial instrument status before changing settings Manual operation is designed for maximum possible operating convenience In con trast the priority of remote control is the predictability of ...

Страница 363: ... malfunction The program should react appropriately to the service request Error queues The error queue should be queried after every service request in the controller pro gram as the entries describe the cause of an error more precisely than the status regis ters Especially in the test phase of a controller program the error queue should be queried regularly since faulty commands from the control...

Страница 364: ...s Parameters required only to refine a query are indicated as Query parameters Parameters that are only returned as the result of a query are indicated as Return values Conformity Commands that are taken from the SCPI standard are indicated as SCPI con firmed All commands used by the R S SMF follow the SCPI syntax rules Asynchronous commands A command which does not automatically finish executing ...

Страница 365: ... standard event register ESR and the EVENt part of the QUEStionable and the OPERation registers to zero The command does not alter the mask and transition parts of the registers It clears the output buffer Usage Setting only ESE Value Event status enable Sets the event status enable register to the specified value The query returns the con tents of the event status enable register in decimal form ...

Страница 366: ...turn values ISTflag 0 1 Usage Query only OPC Operation complete Sets bit 0 in the event status register when all preceding commands have been execu ted This bit can be used to initiate a service request The query form writes a 1 into the output buffer as soon as all preceding commands have been executed This is used for command synchronization OPT Option identification query Queries the options in...

Страница 367: ...tably configured The query reads out the contents of the power on status clear flag Parameters Action 0 1 0 The contents of the status registers are preserved 1 Resets the status registers RCL Number Recall Loads the instrument settings from an intermediate memory identified by the specified number The instrument settings can be stored to this memory using the command SAV with the associated numbe...

Страница 368: ...quest enable register to the indicated value This command deter mines under which conditions a service request is triggered Parameters Contents Contents of the service request enable register in decimal form Bit 6 MSS mask bit is always 0 Range 0 to 255 STB Status byte query Reads the contents of the status byte in decimal form Usage Query only TRG Trigger Triggers all actions waiting for a trigge...

Страница 369: ...ciated subsystems Four presetting actions are available Activating the default state of all internal instrument functions RST on page 352 Functions that concern the integration of the instrument into a measurement setup are not changed e g GPIB address or reference oscillator source settings Activating the preset state of the parameters related to the selected signal path SOURce hw PRESet on page ...

Страница 370: ...ry Preset resets the Remote Channel and network settings to the default values Executing Factory Preset via remote control terminates the connection to the instru ment if these settings had been configured to values different to the default ones The factory preset function resets nearly all instrument settings In addition to the regu lar preset by means of the PRESET key a Factory Preset resets al...

Страница 371: ...on hw LEVel LOOPgain STATe 357 CALibration hw LEVel MEASure 357 CALibration hw LEVel EXTern DATA 357 CALibration hw LEVel STATe 358 CALibration LFOutput MEASure 358 CALibration hw ROSCillator DATA 358 CALibration hw ALL MEASure Force Starts all internal adjustments that do not require external measurement equipment Query parameters Force string Return values Measure select Example CAL ALL MEAS Res...

Страница 372: ...Measure 0 1 Example CAL LEV MEAS starts adjustments for maximum level accuracy Response 0 adjustment has been performed successfully Usage Query only Manual operation See Adjust Level on page 103 CALibration hw LEVel EXTern DATA Data Queries what data has been used for the level calibration By default the instrument uses correction data obtained in the factory before delivery In addition customer ...

Страница 373: ...mple CAL LFO starts the adjustments for the modulation generators Response 0 the adjustments have been performed successfully Usage Query only Options R S SMF B20 Manual operation See Adjust Modulation LF Generator on page 103 CALibration hw ROSCillator DATA Data Sets the calibration value for the custom defined external adjustment Parameters Data integer Range 0 to INT_MAX RST 0 7 5 DIAGnostic Su...

Страница 374: ...meters Board string Return values BgInfo Module name Module stock number incl variant Module revision Module serial number Each entry for one module consists of four parts which are sepa rated by space characters Example DIAG BGIN CAT Queries the instrument configuration Response FSYN MWIF Returns the data of all available modules DIAG BGIN FSYN Queries the configuration of the FSYN Response FSYN ...

Страница 375: ...r of power on events Return values Pocount float Example DIAG INFO POC queries the number of power on events Response 123 The instrument was switched on for 123 times up to now Usage Query only Manual operation See Power On Count on page 104 7 6 DISPlay Subsystem The DISPlay subsystem contains the commands to set the power save mode of the instrument DISPlay ANNotation AMPLitude 361 DISPlay ANNota...

Страница 376: ... FREQ ON Supresses the frequency display Manual operation See Annotation Frequency on page 130 DISPlay ANNotation ALL State Displays asterisks instead of the level and frequency values in the status bar of the instrument This setting is useful when you remotely control the instrument Parameters State 0 1 OFF ON RST 1 Example DISP ANN AMPL ON Shows asterisks instead of frequency and level values DI...

Страница 377: ...ISPlay DIALog OPEN DialogId Opens the specified dialog To determine the dialog identifier use command DISPlay DIALog ID Setting parameters DialogId string Example DISP DIAL OPEN dialog ID Opens the dialog determined with the dialog ID Usage Setting only DISPlay PSAVe HOLDoff HoldoffTimeMin Sets the waiting time for the screen save mode of the display Parameters HoldoffTimeMin integer Range 1 to 60...

Страница 378: ...n Saver Active on page 117 DISPlay UPDate Update Activates the refresh mode of the display Parameters Update 0 1 OFF ON RST 1 Example DISP UPD ON Activates automatic update of the display at defined time inter vals 7 7 FORMat Subsystem The FORMat subsystem contains the commands which determine the format of the data that the R S SMF returns to the controller This affects all query commands which r...

Страница 379: ...it first FORMat DATA Data Determines the data format which the R S SMF uses to return data When data is transferred from the control computer to the instrument the instrument detects the data format automatically In this case the value set here is irrelevant Parameters Data ASCii PACKed ASCii Numerical data is transferred as plain text separated by com mas PACKed Numerical data is transferred as b...

Страница 380: ...tains the commands to generate a hardcopy of the display HCOPy DATA 365 HCOPy DEVice 366 HCOPy DEVice LANGuage 366 HCOPy EXECute 366 HCOPy FILE NAME 367 HCOPy FILE NAME AUTO 367 HCOPy FILE NAME AUTO DIRectory 367 HCOPy FILE NAME AUTO DIRectory CLEar 368 HCOPy FILE NAME AUTO FILE 368 HCOPy FILE NAME AUTO FILE DAY 368 HCOPy FILE NAME AUTO FILE DAY STATe 369 HCOPy FILE NAME AUTO FILE MONTh 369 HCOPy ...

Страница 381: ...T FILE Example HCOP DEV FILE The hardcopy is stored in a file Manual operation See Destination on page 135 HCOPy DEVice LANGuage Language Selects the bitmap graphic format for the screenshot You can also retrieve the data using command HCOP DATA This command is an alias to command HCOPy IMAGe FORMat Parameters Language BMP JPG XPM PNG RST PNG Example HCOP DEV LANG BMP Selects bitmap as image forma...

Страница 382: ...ame commands HCOPY FILE NAME AUTO Parameters Name string Example HCOP FILE NAME usb HCopy Defines the hardcopy filename Manual operation See File Info on page 135 HCOPy FILE NAME AUTO Queries the path including the filename of the file with automatically generated name Return values Auto string Example See HCOPy FILE NAME AUTO FILE on page 368 Usage Query only Manual operation See File Options on ...

Страница 383: ...ent can be deactivated activated separately Return values File string Example HCOP DEV LANG BMP Selects output format bmp HCOP FILE AUTO DIR usb Defines the destination directory usb HCOP FILE AUTO PREF gen The filename starts with the prefix gen The usage of auto matic naming with prefix and date in the filename is preset STAT ON HCOP Triggers the generation of a hardcopy of the current trace HCO...

Страница 384: ...the automatically generated fil ename Manual operation See File Options on page 136 HCOPy FILE NAME AUTO FILE MONTh Queries the month in the date part in the automatic filename Return values Month integer Range 1 to 12 RST 1 Example HCOP FILE AUTO MONT Queries the month in the date part in the automatic filename Usage Query only HCOPy FILE NAME AUTO FILE MONTh STATe State Activates the usage of th...

Страница 385: ...base On subsequent saves the number is incremented Return values Number integer Range 0 to 999999 RST 0 Example HCOP FILE AUTO NUMB Queries the number in the automatic filename Usage Query only Manual operation See File Options on page 136 HCOPy FILE NAME AUTO FILE PREFix Prefix Sets the prefix part in the automatic filename The usage of the prefix is activated with command HCOP FILE AUTO PREF STA...

Страница 386: ...O YEAR STAT OFF Deactivates the usage of the year in the automatic filename Manual operation See File Options on page 136 HCOPy FILE NAME AUTO STATe State Activates deactivates automatic naming of the hardcopy files Parameters State 0 1 OFF ON RST 1 Example HCOP FILE AUTO STAT OFF Deactivates automatic naming Manual operation See Automatic Naming on page 135 HCOPy IMAGe FORMat Format This command ...

Страница 387: ... KBOard LAYout 372 KBOard LANGuage Language This command selects the keyboard language The assignment of some keys depends on the selected language Parameters Language US DE RST US Example KBO LANG US selects keyboard language American English Usage SCPI confirmed Manual operation See Layout USB Keyboard Settings on page 118 KBOard LAYout Layout Selects the keyboard language The assignment of some...

Страница 388: ...ad to data loss 7 10 1 File Naming Conventions To enable files in different file systems to be used the following file naming conven tions should be observed The file name can be of any length and is case sensitive meaning it is distinguished between uppercase and lowercase letters The file and the optional file extension are separated by a dot All letters and numbers are permitted numbers are how...

Страница 389: ... subsequently to loading a file with instrument settings with command MMEMory LOAD STATe on page 380 these settings have to be activated with the common com mand RCL number 7 10 2 Extensions for User Files The following table lists all available file extensions for user files The currently availa ble files on the instrument depend on the installed options Table 7 1 List of the automatically assign...

Страница 390: ...ng with Files and Directories 1 Read out all files in the specified directory MMEM CAT usb user Response 127145265 175325184 test DIR 0 temp DIR 0 readme txt ASC 1324 state savrcltxt STAT 5327 waveform wv BIN 2342 the directory usb user contains the subdirectories test and temp as well as the files readme txt state savrcltxt and waveform wv which have differ ent file types Tip To query only the su...

Страница 391: ...Te 382 MMEMory CATalog path Returns the content of a particular directory Query parameters path string String parameter to specify the directory If you leave out the path the command returns the contents of the directory selected with MMEMory CDIRectory The path may be relative or absolute Return values UsedDiskSpace Byte size of all files in the directory FreeDiskSpace Remaining disk space in byt...

Страница 392: ...ectory Directory Changes the default directory for mass memory storage The directory is used for all subsequent MMEM commands if no path is specified with them Parameters Directory directory_name String containing the path to another directory The path can be relative or absolute To change to a higher directory use two dots Example See Working with Files and Directories on page 375 Usage SCPI conf...

Страница 393: ... correct data transfer The query command transfers the specified file from the instrument to the GPIB bus and then on to the controller It is important to ensure that the intermediate memory on the controller is large enough to take the file The setting for the GPIB bus terminator is irrelevant Tip Use this command to read transfer stored instrument settings or waveforms directly from to the instr...

Страница 394: ...ueries the content of the current directory queried with MMEMory CDIRectory command Return values Catalog file_entry Names of the subdirectories separated by colons The first two strings are related to the parent directory Example See Working with Files and Directories on page 375 Usage Query only MMEMory DCATalog LENGth Path Returns the number of subdirectories in the current or specified directo...

Страница 395: ...tion memory HeapUsedKb integer Used heap memory HeapAvailableKb integer Available heap memory Usage Query only MMEMory LOAD STATe SavRclStateNumb file_name Loads the specified file stored under the specified name in an internal memory After the file has been loaded the instrument setting must be activated using an RCL command Setting parameters SavRclStateNumb Determines to the specific number to ...

Страница 396: ...ng String parameter to specify the name of the file to be moved DestinationFile string String parameters to specify the name of the new file Example See Working with Files and Directories on page 375 Usage Event SCPI confirmed Manual operation See Rename on page 144 MMEMory MSIS Msis Defines the drive or network resource in the case of networks for instruments with windows operating system using m...

Страница 397: ...t Example See Storing and Loading Current Settings on page 375 Usage Event Manual operation See Save on page 141 7 11 OUTPut Subsystem The OUTPut system contains the commands which set the properties of the RF output connector The properties of the LF output connector are set in the SOURce LFOutput Subsystem system OUTPut ALL STATe 382 OUTPut hw AFIXed RANGe LOWer 383 OUTPut hw AFIXed RANGe UPPer ...

Страница 398: ...ry only Manual operation See Fixed Range in PEP Attenuation Settings on page 176 OUTPut hw AFIXed RANGe UPPer Queries the maximum level which can be set when the attenuator is fixed see OUTPut hw AMODe Return values Upper float Increment 0 01 Example OUTP AFIX RANG UPP queries the maximum level for the FIXed setting for the RF out put Example Response 27 The maximum level is 27 dBm Usage Query onl...

Страница 399: ...re fixed in their current positions and the resulting variation range is defined RST AUTO Example POW ALC ON activates automatic level control for RF output OUTP AMOD FIX sets the fixed mode with uninterrupted level for RF output Manual operation See Mode Attenuator Settings on page 176 OUTPut BLANk MODE Mode The command selects the RF blanking method for sweeps with step widths less than 10 MHz P...

Страница 400: ...blank marker starts after the trigger signal Manual operation See Blank Width on page 119 OUTPut FPRoportional SCALe Scale The command selects the V GHz ratio for the output Parameters Scale S0V5 S1V0 RST S1V0 Example OUTP FPR SCAL S0V5 Sets the V GHz ratio for the output to 0 5 Manual operation See V GHz on page 118 OUTPut hw STATe State Activates and deactivates the RF output signal RF ON RF OFF...

Страница 401: ...witches the local state of the continuous power mea surement on and off The READ system is used to start and to retrieve the measurement result of the power viewer measurement The SENSe subsystem contains the commands for configuring the power viewer and power analysis measurements with power sensors connected to the generator Up to three sensors can be connected to the signal generator The TRACe ...

Страница 402: ...opy with the SENSe POWer SWEep HCOPy commands General parameter and measurement settings are valid for all connected sensors therefore no suffix is used in these commands 7 12 1 CALCulate Subsystem CALCulate POWer SWEep TIME GATE ch AVERage 387 CALCulate POWer SWEep TIME GATE ch FEED 388 CALCulate POWer SWEep TIME GATE ch MAXimum 388 CALCulate POWer SWEep TIME GATE ch STOP 389 CALCulate POWer SWEe...

Страница 403: ...he same trace Parameters Feed TRAC1 TRAC2 TRAC3 TRACe1 TRACe2 TRACe3 TRAC4 TRACe4 RST TRAC1 Example CALC SWE TIME GATE FEED TRAC2 assignes the gates to trace 2 Options Option R S SMF K28 Manual operation See Trace Gate on page 225 CALCulate POWer SWEep TIME GATE ch MAXimum Queries the average power value of the time gated measurement Return values Maximum float Range 1000 to 1000 Increment 1E 12 R...

Страница 404: ...es the gate settings for the selected trace The measurement ist started with command SENS POW INIT Both gates are active at one time Parameters State 0 1 OFF ON RST 0 Example CALC SWE TIME GATE STAT ON enables time gated measurement Options Option R S SMF K28 Manual operation See State Gate on page 226 CALCulate POWer SWEep FREQuency MATH ch STATe State Activates the trace mathematics mode for Fre...

Страница 405: ...re enables to calculate the difference between the measurement values of two traces Addition ally for further calculation a math result can also be assigned to a trace Parameters State 0 1 OFF ON RST 0 Example CALC POW SWE POW MATH2 STATe Example switches on math mode in trace 2 Options R S SMF K28 Manual operation See Mathematics Trace Power Analysis on page 216 CALCulate POWer SWEep POWer MATH c...

Страница 406: ...e selected trace in Time measurement mode Parameters Subtract T1T1 T1T2 T1T3 T1T4 T1REf T2T1 T2T2 T2T3 T2T4 T2REf T3T1 T3T2 T3T3 T3T4 T3REf T4T1 T4T2 T4T3 T4T4 T4REf Example CALC POW SWE TIME MATH4 SUBT T2REF Example Subtracts the Reference and Trace 2 and assigns the result to Trace 4 The resulting curve is shown in the diagram Options R S SMF K28 Manual operation See Mathematics Trace Power Anal...

Страница 407: ...hich also provides the measurement results The local state is not influenced by this command measurements results can be retrieved with local state on or off Parameters Continuous 0 1 OFF ON RST OFF Example INIT CONT ON switches local state of continuous power measurement on Manual operation See State on page 198 7 12 4 READ Subsystem READ ch POWer The command triggers the measurement with power s...

Страница 408: ... STATe 396 SENSe ch POWer DISPlay PERManent PRIority 396 SENSe ch POWer DISPlay PERManent STATe 397 SENSe ch POWer FILTer LENGth AUTO 397 SENSe ch POWer FILTer LENGth USER 397 SENSe ch POWer FILTer NSRatio 398 SENSe ch POWer FILTer NSRatio MTIMe 398 SENSe ch POWer FILTer SONCe 398 SENSe ch POWer FILTer TYPE 399 SENSe ch POWer FREQuency 399 SENSe ch POWer LOGGing STATe 400 SENSe ch POWer OFFSet 400...

Страница 409: ...Py FILE NAME AUTO DIRectory 413 SENSe POWer SWEep HCOPy FILE NAME AUTO DIRectory CLEar 413 SENSe POWer SWEep HCOPy FILE NAME AUTO FILE 414 SENSe POWer SWEep HCOPy FILE NAME AUTO FILE DAY 414 SENSe POWer SWEep HCOPy FILE NAME AUTO FILE DAY STATe 415 SENSe POWer SWEep HCOPy FILE NAME AUTO FILE MONTh 415 SENSe POWer SWEep HCOPy FILE NAME AUTO FILE MONTh STATe 415 SENSe POWer SWEep HCOPy FILE NAME AUT...

Страница 410: ...NSe POWer SWEep TIME REFerence DATA YVALues 428 SENSe ch POWer SWEep TIME SENSor SFRequency 428 SENSe ch POWer SWEep TIME SENSor SFRequency STATe 429 SENSe ch POWer SWEep TIME SENSor TRIGger AUTO 429 SENSe ch POWer SWEep TIME SENSor TRIGger DTIMe 429 SENSe ch POWer SWEep TIME SENSor TRIGger HYSTeresis 430 SENSe ch POWer SWEep TIME SENSor TRIGger LEVel 430 SENSe ch POWer SWEep TIME SENSor TRIGger S...

Страница 411: ... The command activates the use of the s parameters correction data of the selected power sensor Note For power sensor with attenuator this command is automatically set to ON Parameters State 0 1 OFF ON RST OFF Example SENS POW CORR SPD STAT ON activates the use of the s parameters correction data of power sensor 1 Manual operation See Use SParameter Power Sensors on page 202 SENSe ch POWer DISPlay...

Страница 412: ...TYPE AUTO Return values Auto float Range 1 to 65536 Example SENS1 FILT TYPE AUTO selects auto filter mode for the power sensor connected to the SENSOR connector SENS1 FILT LENG AUTO queries the automatically set filter length Response 1024 Usage Query only Manual operation See Filter Length on page 201 SENSe ch POWer FILTer LENGth USER User The command selects the filter length for user filter mod...

Страница 413: ...LTer NSRatio MTIMe MTime The command defines the timeout for fixed noise filter mode SENSe 1 3 POWer FILTer TYPE NSRatio This value ensures limited settling times Parameters MTime float Range 1 to 999 99 Increment 0 01 RST 4 Default unit s Example SENS1 FILT TYPE NSR selects fixed noise filter mode for the power sensor connected to the SENSOR connector SENS1 FILT NSR 2 sets a noise content of 0 2 ...

Страница 414: ...filter length is selected USER The filter length is set manually As the filter length works as a multiplier for the measurement time this results in a constant measurement time NSRatio The filter lenghth averaging factor is selected so that the sen sor s intrinsic noise 2 standard deviations does not exceed the specified noise content The desired noise content is entered with command SENSe FILTer ...

Страница 415: ...et Offset The command enters a level offset which is added to the measured level value after activation with command SENSe POWer OFFSet STATe ON This allows e g an attenuator in the signal path to be considered Parameters Offset float Range 100 0 to 100 0 RST 0 Default unit dB Example SENS POW OFFS 10 0 sets a level offset of 10 dB Manual operation See Level Offset on page 200 SENSe ch POWer OFFSe...

Страница 416: ...corresponding correction factor is used The level set ting of the instrument serves as reference level of the measure ment Manual operation See Source on page 200 SENSe ch POWer STATus DEVice The command queries if a sensor is connected to the signal generator The sensor is selected by suffix in the keyword SENSe or READ of the command header Suffix 1 denotes the sensor connected to the SENSOR con...

Страница 417: ...age Setting only Options Option R S SMF K28 SENSe POWer SWEep FREQuency REFerence DATA COPY Generates a reference curve for Frequency measurement Example SENS POW SWE FREQ REF DATA COPY Example generates a reference curve in frequency mode Usage Event Options R S SMF K28 Manual operation See Define Reference Trace Power Analysis on page 215 SENSe POWer SWEep FREQuency REFerence DATA POINts Queries...

Страница 418: ...oint A and Power Y Point B in Frequency measurement Parameters YValues string Example SENSe POW SWE FREQ REF DATA YVAL 10 25 Example sets the y value of reference Point A to 10 dBm and the value of Point B to 25 dBm Options R S SMF K28 Manual operation See Define Reference Trace Power Analysis on page 215 SENSe POWer SWEep FREQuency RMODe RMode Selects single or continuous mode for measurement mod...

Страница 419: ...ion See Level Offset State Power Analysis on page 228 SENSe ch POWer SWEep FREQuency SENSor SRANge STATe State Activates the use of a frequency range for the power measurement that is different to the set signal generator frequency range The separate frequency range is entered with commands SENS SWE FREQ SENS STAR and SENS SWE FREQ SENS STop Parameters State 0 1 OFF ON RST 0 Example SENS2 SWE FREQ...

Страница 420: ...STOP Stop Sets the stop frequency for the frequency power analysis with separate frequencies Parameters Stop integer Range 0 to 1E12 RST 10E6 Example SENS SWE FREQ SENS2 SRAN STAT ON activates use of a separate frequency range for frequency ver sus power measurement SENS SWE FREQ SENS2 STAR 2 0GHZ sets a sweep start at 2 GHz irrespective of the current signal generator frequency settings SENS SWE ...

Страница 421: ... Analysis on page 218 SENSe POWer SWEep FREQuency STEPs Steps Sets the number of measurement steps for the frequency mode Parameters Steps integer Range 10 to 1000 RST 200 Example SENS SWE FREQ STEP 500 sets 500 steps Options Option R S SMF K28 Manual operation See Steps Power Analysis on page 219 SENSe POWer SWEep FREQuency STOP Stop Sets the stop frequency for the frequency mode Parameters Stop ...

Страница 422: ... is deactivated If switching from activated to deacti vated Auto scaling the scaling is maintained CEXPanding FEXPanding Auto scale is activated The scaling of the Y axis is selected in such a way that the trace is always visible To this end the range is expanded if the minimum or maximum values of the trace move outside the current scale The step width is 5 dB for selection course and variable in...

Страница 423: ...Analysis on page 222 SENSe POWer SWEep FREQuency YSCale MAXimum Maximum Sets the maximum value for the y axis of the measurement diagram Parameters Maximum float Range 200 to 100 Increment 0 01 RST 40 Example SENS SWE FREQ YSC MAX 10DBM sets 10 dBm as the upper limit of the measurement diagram Options Option R S SMF K28 Manual operation See Min Max y Axis Power Analysis on page 221 SENSe POWer SWE...

Страница 424: ...tes how many of the following digits describe the length of the data block In the example the 2 following digit indicates the length to be 65 characters Because horizontal representation is selected a row with all the x values of the active trace frequency follows The second row contains all the y values of the active trace power The rows end with a new line each counts as one character Note if mo...

Страница 425: ...cted the trace data is saved as an ASCII file with comma separated values It is also possible to directly retrieve the data using commandSENS SWE HCOP DATA Parameters Language BMP JPG XPM PNG CSV RST BMP Example SENS SWE HCOP DEV LANG BMP selects output format bmp Options Option R S SMF K28 Manual operation See Format Power Analysis on page 241 SENSe POWer SWEep HCOPy DEVice LANGuage CSV DPOint DP...

Страница 426: ...e LANGuage CSV ORIentation Orientation Defines the orientation of the X Y value pairs For examples on how the data are arranged see CSV Options Hardcopy Power Analysis on page 243 Parameters Orientation HORizontal VERTical RST HORizontal Example SENS SWE HCOP DEV LANG CSV selects output format csv SENS SWE HCOP DEV LANG CSV ORI VERT selects vertical orientation the value pairs are written in a col...

Страница 427: ... the size of the bitmap is 320 pixels by 240 pixels Options Option R S SMF K28 Manual operation See Save Options Power Analysis on page 242 SENSe POWer SWEep HCOPy EXECute Triggers the generation of a hardcopy of the current measurement diagram The data is written into the file selected created with the SENSe POWer SWEep HCOPy FILE NAME command Example SENS SWE HCOP DEV LANG BMP selects output for...

Страница 428: ...rs the generation of a hardcopy of the current trace The hardcopy is stored in the file nrp_trace1 bmp Options Option R S SMF K28 Manual operation See File name Power Analysis on page 241 SENSe POWer SWEep HCOPy FILE NAME AUTO DIRectory Directory Defines the directory into which the hardcopy files will be stored if auto naming is acti vated SENS SWE HCOP FILE AUTO STAT ON Parameters Directory stri...

Страница 429: ... directory var nrp if automatic nam ing is activated SENS SWE HCOP FILE AUTO PREF sens1 the file name starts with the prefix sens1 The usage of auto matic naming with prefix and date in the file name is preset STAT ON SENS SWE HCOP triggers the generation of a hardcopy of the current trace SENS SWE HCOP FILE AUTO FILE queries the file name Usage Query only Options Option R S SMF K28 Manual operati...

Страница 430: ...alues Month integer Range 1 to 12 RST 1 Example SENS SWE HCOP FILE AUTO MONT queries the month of the date part in the automatic file name Usage Query only Options Option R S SMF K28 Manual operation See Save Options Power Analysis on page 242 SENSe POWer SWEep HCOPy FILE NAME AUTO FILE MONTh STATe State Activates the usage of the month in the automatic file name Parameters State 0 1 OFF ON RST 1 ...

Страница 431: ...s used in the automatically generated file name of the hardcopy file Options Option R S SMF K28 Manual operation See Save Options Power Analysis on page 242 SENSe POWer SWEep HCOPy FILE NAME AUTO FILE PREFix STATe State Activates the usage of the prefix in the automatic file name Parameters State 0 1 OFF ON RST 1 Example SENS SWE HCOP FILE AUTO PREF STAT OFF deactivates the usage of the prefix in ...

Страница 432: ...ption R S SMF K28 Manual operation See Save Options Power Analysis on page 242 SENSe POWer SWEep HCOPy FILE NAME AUTO STATe State Activates deactivates automatic naming of the hardcopy files Parameters State 0 1 OFF ON RST 1 Example SENS SWE HCOP FILE AUTO STAT OFF deactivates automatic naming of the hardcopy files The file name and directory is now defined with command SENS SWE HCOP FILE NAME pat...

Страница 433: ...Example SENS POW SWE POW REF DATA COPY Example generates a reference curve in power mode Usage Event Options R S SMF K28 SENSe POWer SWEep POWer REFerence DATA POINts Queries the number of points from the reference curve in Power measurement Return values Points integer Range 10 to 1000 Example SENS POW SWE POW REF DATA POIN Example queries the number of points from the reference curve in power mo...

Страница 434: ...Point A to 30 dBm and the value of Point B to 10 dBm Options R S SMF K28 Manual operation See Define Reference Trace Power Analysis on page 215 SENSe POWer SWEep POWer RMODe RMode Selects single or continuous mode for measurement mode power in power analysis Parameters RMode SINGle CONTinuous RST SINGle Example SENS SWE POW RMOD SING selects single measurement Options Option R S SMF K28 Manual ope...

Страница 435: ...ptions Option R S SMF K28 Manual operation See Level Offset State Power Analysis on page 228 SENSe ch POWer SWEep POWer SENSor SFRequency SFRequency Defines the separate frequency used for power vs power measurement Parameters SFRequency float Range 0 to 1E12 Increment 1 RST 1E6 Example SENS1 SWE POW SENS SFR 2GHz the measurement is performed at 2 GHz Manual operation See Use Separate Frequency Po...

Страница 436: ... OFFSet STATe State Activates a level offset at the sensor input Define the appropriate value with the com mand SENSe ch POWer SWEep TIME SENSor OFFSet Parameters State 0 1 OFF ON RST 0 Example SENS2 SWE POW TIME STAT ON activates the specified level offset Options Option R S SMF K28 Manual operation See Level Offset State Power Analysis on page 228 SENSe ch POWer SWEep TIME SENSor PULSe STATe Sta...

Страница 437: ...ms of percentage of the overall pulse level power or voltage The distal power defines the end of the rising edge and the start of the fall ing edge of the pulse Note The command is only avalaible in time measurement mode and with R S NRP Z81 power sensors Parameters HReference float Range 0 to 100 Increment 0 01 RST 90 Options Option R S SMF K28 Manual operation See Distal Pulse Data Analysis on p...

Страница 438: ...time measurement mode and R S NRP Z81 power sensors Parameters LReference float Range 0 0 to 100 0 Increment 0 01 RST 10 0 Example SENS SWE TIM PULS THR LREF 10 sets the lower reference level to 10 Options Option R S SMF K28 Manual operation See Proximal Pulse Data Analysis on page 233 SENSe POWer SWEep POWer SPACing MODE Mode Queries the sweep spacing for the power versus power measurement The se...

Страница 439: ...Analysis on page 219 SENSe POWer SWEep POWer STOP Stop Sets the stop level for the power versus power measurement Parameters Stop float Range 145 to 20 Increment 0 01 RST 40 Example SENS SWE POW STOP 20 0DBM sets the stop level to 20 dBm Options Option R S SMF K28 Manual operation See Max Power Analysis on page 218 SENSe POWer SWEep POWer TIMing MODE Mode Selects the timing mode of the measurement...

Страница 440: ...B for selection course and variable in the range of 0 2 db to 5 dB for selection fine CFLoating FFLoating Auto scale is activated The scaling of the Y axis is selected in such a way that the trace is always visible To this end the range is either expanded if the minimum or maximum values of the trace move outside the current scale or scaled down if the trace fits into a reduced scale The step widt...

Страница 441: ...Power Analysis on page 221 SENSe POWer SWEep POWer YSCale MINimum Minimum Sets the minimum value for the y axis of the measurement diagram Parameters Minimum float Range min level to max level Increment 0 01 RST 40 dBm Example SENS SWE POW YSC MIN 10DBM sets 10 dBm as the lower limit of the measurement diagram Options Option R S SMF K28 Manual operation See Min Max y Axis Power Analysis on page 22...

Страница 442: ...ce noise but increase the measurement time Averaging requires a stable trigger event so that the measurement cycles have the same timing Parameters Count 1 2 4 8 16 32 64 128 256 512 1024 RST 1 Example SENS SWE MODE TIME selects time mode SENS SWE TIME AVER 128 selects averaging factor 128 Manual operation See Average Power Analysis on page 219 SENSe POWer SWEep TIME REFerence DATA COPY Generates ...

Страница 443: ...lue of reference Point A to 5 µs and the value of Point B to 45 µs Options R S SMF K28 Manual operation See Define Reference Trace Power Analysis on page 215 SENSe POWer SWEep TIME REFerence DATA YVALues YValues Sets or queries the y values of the two reference points i e Power Y Point A and Power Y Point B in Time measurement Parameters YValues string Example SENSe POW SWE TIME REF DATA YVAL 30 1...

Страница 444: ... the generator fre quency for power analysis Options Option R S SMF K28 Manual operation See Use Separate Frequency Power Analysis on page 228 SENSe ch POWer SWEep TIME SENSor TRIGger AUTO Auto Sets the trigger level the hysteresis and the dropout time to default values Parameters Auto ONCE RST Example SENS1 SWE TIME SENS TRIG AUTO ONCE the trigger level is automatically determined Options Option ...

Страница 445: ... RST 0 5 Example SENS1 SWE TIME SENS TRIG HYST 0 5 dB the hysteresis is 0 5 dB Options Option R S SMF K28 Manual operation See Hysteresis Power Analysis on page 239 SENSe ch POWer SWEep TIME SENSor TRIGger LEVel Level Sets the trigger threshold Parameters Level float Range 200 to 100 Increment 0 001 RST 1 Example SENS1 SWE TIME SENS TRIG LEV 20 dBm sets the trigger level to 20 dBm Options Option R...

Страница 446: ...Mode Queries the sweep spacing for the power versus time measurement The spacing is fixed to linear Parameters Mode LINear RST LINear Example SENS SWE TIME SPAC queries the sweep spacing Options Option R S SMF K28 Manual operation See Spacing Power Analysis on page 219 SENSe POWer SWEep TIME STARt Start Sets the start time for the power versus time measurement Value 0 defines the trigger point By ...

Страница 447: ... Range 0 to 2 Increment 1E 12 RST 1E 3 Example SENS SWE TIME STOP 1ms sets the stop time to 1 ms Options Option R S SMF K28 Manual operation See Max Power Analysis on page 218 SENSe POWer SWEep TIME TEVents TriggerTEvents Determines whether the measurement data processing starts with a trigger event in one of the sensors Logical OR or whether all channels have to be triggered logical AND Each sens...

Страница 448: ...FLoating FFLoating Auto scale is activated The scaling of the Y axis is selected in such a way that the trace is always visible To this end the range is either expanded if the minimum or maximum values of the trace move outside the current scale or scaled down if the trace fits into a reduced scale The step width is 5 dB for selec tion course and variable in the range of 0 2 db to 5 dB for selec t...

Страница 449: ...nimum Sets the minimum value for the y axis of the measurement diagram Parameters Minimum float Range min level to max level Increment 0 01 RST 40 Default unit dBm Example SENS SWE TIME YSC MIN 10DBM sets 10 dBm as the lower limit of the measurement diagram Options Option R S SMF K28 Manual operation See Min Max y Axis Power Analysis on page 221 SENSe ch POWer TYPE The command queries the type of ...

Страница 450: ...t dBm or dBuV Parameters Power DBM DBUV WATT RST DBM Example SENS2 UNIT DBM selects unit dBm for the measured value returned by command READ READ2 Response 7 34 7 34 dBm are measured by sensor 2 Manual operation See Unit on page 198 7 12 6 TRACe Subsystem TRACe ch POWer SWEep COLor 437 TRACe ch POWer SWEep COPY 437 TRACe ch POWer SWEep DATA POINts 437 TRACe ch POWer SWEep DATA XVALues 438 TRACe ch...

Страница 451: ...SWEep MEASurement PULSe DURation DISPlay ANNotation STATe 442 TRACe ch POWer SWEep MEASurement PULSe PERiod DISPlay ANNotation STATe 442 TRACe ch POWer SWEep MEASurement POWer AVERage DISPlay ANNotation STATe 442 TRACe ch POWer SWEep MEASurement POWer PULSe BASE DISPlay ANNotation STATe 442 TRACe ch POWer SWEep MEASurement POWer HREFerence DISPlay ANNotation STATe 442 TRACe ch POWer SWEep MEASurem...

Страница 452: ...e 3 RED Example TRAC2 SWE COL GRAY trace2 is indicated in gray color Manual operation See Color Trace Power Analysis on page 217 TRACe ch POWer SWEep COPY Copy Stores the selected trace data as reference trace Setting parameters Copy REFerence Example TRAC2 SWE COPY REF stores the current trace2 as reference trace TRAC1 SWE FEED REF assigns the reference trace to trace 1 Usage Setting only Manual ...

Страница 453: ...e measurement OPC waits until measurement is performed TRAC1 SWE DATA XVAL queries the x axis values of trace 1 TRAC1 SWE DATA YVAL queries the measurement values of trace 1 Usage Query only Manual operation See Start Power Analysis on page 212 TRACe ch POWer SWEep DATA YVALues Queries the measurement y axis values of the selected trace of the current power analysis Return values YValues string Ex...

Страница 454: ...S SWE RMOD SING selects single measurement SENS SWE INIT starts the measurement Manual operation See Indication Power Analysis on page 214 TRACe POWer SWEep MEASurement FULLscreen DISPlay ANNotation STATe State Selects fullscreen display of the measurement diagram on the display and in the hard copy file Parameters State 0 1 OFF ON RST 1 Example TRAC SWE MEAS FULL DISP ANN ON the display only show...

Страница 455: ...MEASurement POWer MINimum TRACe ch POWer SWEep MEASurement POWer PULSe BASE TRACe ch POWer SWEep MEASurement POWer PULSe TOP TRACe ch POWer SWEep MEASurement POWer REFerence TRACe ch POWer SWEep MEASurement PULSe DCYCle TRACe ch POWer SWEep MEASurement PULSe DURation TRACe ch POWer SWEep MEASurement PULSe PERiod TRACe ch POWer SWEep MEASurement PULSe SEParation TRACe ch POWer SWEep MEASurement PUL...

Страница 456: ...ollowing TRAC SWE MEAS commands Only six parameters are indicated at one time Note This command is only avalaible in time measurement mode and with R S NRP Z81 power sensors Parameters State 0 1 OFF ON RST 1 Example TRAC SWE MEAS PULS DISP ANN ON activates indication of the selected pulse data Options Option R S SMF K28 Manual operation See Marker and Pulse Data Indication Power Analysis on page 2...

Страница 457: ...ERiod DISPlay ANNotation STATe State TRACe ch POWer SWEep MEASurement POWer AVERage DISPlay ANNotation STATe State TRACe ch POWer SWEep MEASurement POWer PULSe BASE DISPlay ANNotation STATe State TRACe ch POWer SWEep MEASurement POWer HREFerence DISPlay ANNotation STATe State TRACe ch POWer SWEep MEASurement POWer LREFerence DISPlay ANNotation STATe State TRACe ch POWer SWEep MEASurement POWer MAX...

Страница 458: ...lse period to be indicated in the display TRAC SWE MEAS PULS DISP ANN ON activates indication of the selected pulse data in the display Options Option R S SMF K28 Manual operation See Transition Times Pulse Data Analysis on page 234 TRACe ch POWer SWEep PULSe THReshold BASE Queries how the threshold parameters are calculated Note This parameter is only avalaible in time measurement mode and R S NR...

Страница 459: ... Reference float Range 0 0 to 100 0 Increment 0 01 RST 50 0 Example TRAC3 SWE PULS THR POW REF queries the medial threshold level of trace 3 Manual operation See Mesial Pulse Data Analysis on page 233 TRACe ch POWer SWEep PULSe THReshold POWer LREFerence LReference Queries the lower medial threshold level of the overall pulse level The proximal power defines the start of the rising edge and the en...

Страница 460: ...ace to trace 1 TRAC1 SWE STAT ON assigns the reference trace to trace 1 SENS SWE RMOD SING selects single measurement SENS SWE INIT starts the measurement Manual operation See Indication Power Analysis on page 214 7 13 SOURce Subsystem The SOURce subsystem contains the commands for configuring the digital and analog signals SOURce hw For one path instruments the keyword SOURce is optional and can ...

Страница 461: ...gnal are input at the EXT1 2 connectors SOURce hw AM ch DEPTh 446 SOURce hw AM RATio 446 SOURce hw AM SCAN STATe 447 SOURce hw AM ch SENSitivity 447 SOURce hw AM ch SOURce 447 SOURce hw AM ch STATe 448 SOURce hw AM ch DEPTh Depth Sets the depth of the amplitude modulation signal in percent Suffix ch 1 2 determines the modulation signal channel Parameters Depth float Range 0 to 100 Increment 0 1 RS...

Страница 462: ...ed modulation signal at the EXT1 2 con nectors provided scanning state is activated The sensitivity depends on the set modu lation SOURce hw AM ch DEPTh on page 446 The returned value reports the sensitivity in dB V Suffix AM ch 1 2 determines the modulation signal channel Parameters Sensitivity float Range 10 to 10 Increment 0 1 RST 1 Example AM1 SENS 5 sets the input sensitivity to 5 dB V for pa...

Страница 463: ...modulation Manual operation See State on page 257 7 13 2 SOURce CHIRp Subsystem The SOURce CHIRp subsystem contains the commands for setting the modulation chirp Chirp modulation requires the following equipment Option R S SMF B20 AM FM ɸM LOG AM Modulator Option R S SMF K23 High Performance Pulse Generator Option R S SMF K3 Narrow Pulse Modulation requires option R S SMF K23 An external trigger s...

Страница 464: ...tru ment is equipped with option R S SMF B144 Range 0 to Depends on hardware variant Increment 0 01 RST 1E3 Default unit Hz Example CHIR BAND 5E3 sets the modulation bandwidth to 5 kHz Manual operation See Bandwidth Chirp Modulation on page 272 SOURce hw CHIRp COMPression RATio Queries the pulse compression ratio that is the product of pulse width s and band width Hz Pulse compression increases th...

Страница 465: ...al signal Parameters Period float Range 200E 9 to 100 Increment 20E 9 RST 10E 6 Example CHIR PULS PER 2 ms the chirp period is 2 ms Manual operation See Pulse Period Chirp Modulation on page 272 SOURce hw CHIRp PULSe WIDTh Width Sets the width of the generated pulse The pulse width must be at least 1us less than the set pulse period Parameters Width float Increment 2E 9 RST 2E 6 Example CHIR PULS ...

Страница 466: ...erates the chirp modulation signals while the gate signal is low RST NORMal Example CHIR TRIG EXT GATE POL NORM selects gate polarity normal Manual operation See Gate Input Polarity Chirp Modulation on page 273 SOURce hw CHIRp TRIGger EXTernal IMPedance Impedance Sets the impedance of the externally applied trigger signal Parameters Impedance G10k G50 G10k 10 kOhm to ground G50 50 ohm to ground RS...

Страница 467: ...itive Example CHIR TRIG EXT SLOP the active slope of the external trigger signal is the falling slope Manual operation See External Trigger Input Slope Chirp Modulation on page 273 SOURce hw CHIRp TRIGger MODE Mode Selects the trigger mode for modulation chirp Parameters Mode AUTO EXTernal EGATe AUTO Generates the modulation chirp continuously EXTernal Generates the chirp modulation signal initiat...

Страница 468: ...ected to the generator output signal With the aid of the command SOURce hw CORRection CSET DATA SENSor ch POWer SONCe a list with correction values for external test assemblies can be automatically determined e g for compensating the frequency response of cables The correction values can be acquired any time irrespective of the modulation settings of the generator SOURce CORRection CSET CATalog 45...

Страница 469: ...ge Query only Manual operation See Directory File List and File Name on page 140 SOURce hw CORRection CSET DATA FREQuency Frequency Transfers the frequency data to the table selected with CORRection CSET SELect The numerical suffix at SOURce must not be used for this command Parameters Frequency Frequency 1 Frequency 2 Range 300 kHz to RFmax depending on model Example CORR CSET var user ucor1 sele...

Страница 470: ... 1dB 0 8dB 0 75dB enters the level values in the table ucor1 Manual operation See Edit User Cor Data User Correction on page 246 SOURce hw CORRection CSET DATA POWer POINts Queries the number of level values in the selected table The numerical suffix at SOURce must not be used for this command Return values Points integer Range 0 to 10000 RST 0 Example CORR CSET var user ucor1 selects the table uc...

Страница 471: ...or selects the directory for the user correction files CORR CSET DEL UCOR1 deletes the table ucor1 Usage Setting only Manual operation See User Cor Data User Correction on page 246 SOURce hw CORRection DEXChange AFILe CATalog Requests a list of available ASCII files for export import of user correction data The individual files are separated by commas The ASCII files are stored with the fixed file...

Страница 472: ...rted or exported The ASCII files are stored with the fixed file extensions txt or csv in a directory of the user s choice The directory applicable to the commands is defined with the com mand MMEMory CDIR A path can also be specified in command SOUR CORR DEXC AFIL SEL in which case the files are stored or loaded in the specified directory Parameters Filename ascii file name Example CORR DEXC MODE ...

Страница 473: ...e decimal separator used in the ASCII data between decimal point and comma with floating point numerals Parameters Decimal DOT COMMa RST DOT Example CORR DEXC MODE EXP selects that the user correction list is exported into an ASCII file CORR DEXC AFIL SEL var user import_ucor csv selects ASCII file ucor csv as destination for the user correction list data CORR DEXC AFIL SEP COL TAB the pairs of fr...

Страница 474: ...rce or the destination for user correction lists and ASCII files Parameters Mode IMPort EXPort RST IMPort Example CORR DEXC MODE IMP selects that ASCII files with frequency and level value pairs are imported and transferred into user correction lists CORR DEXC AFIL SEL var user ucor csv selects that ASCII file ucor csv is imported CORR DEXC SEL var user ucor_imp selects that the ASCII file ucor cs...

Страница 475: ...4 7 2 1 Extensions for User Files on page 95 To determine the file location directory path you can either enter it with the command directly or use the command MMEMory CDIR To activate level correction use the command SOURce hw CORRection STATe Parameters Filename table name Example CORR CSET var user ucor1 selects the table ucor1 CORR ON activates level correction Correction is performed using th...

Страница 476: ...te 0 1 OFF ON RST 0 Example SOUR CORR CSET var user ucor1 selects the table ucor1 SOUR CORR ON activates user correction Manual operation See State User Correction on page 246 SOURce hw CORRection VALue Queries the current value for user correction Return values Value float Range 100 to 100 Increment 0 01 RST 0 Example CORR VAL queries the value currently used for level correction Response 3 the c...

Страница 477: ...Rce 462 SOURce hw DM ASK STATe 463 SOURce hw DM EXTernal POLarity ch 463 SOURce hw DM FSK DEViation 464 SOURce hw DM FSK SOURce 464 SOURce hw DM FSK STATe 464 SOURce hw DM PSK DEViation 465 SOURce hw DM PSK SOURce 465 SOURce hw DM PSK STATe 465 SOURce hw DM ASK DEPTh Depth The command sets the modulation depth for ASK modulation Parameters Depth float Range 0 to 100 Increment 0 01 RST 30 PCT Examp...

Страница 478: ... modulation signal Options R S SMF B20 Manual operation See Source ASK on page 266 SOURce hw DM ASK STATe State The command activates deactivates the ASK modulation Parameters State 0 1 OFF ON RST OFF Example SOUR DM ASK STAT ON activates the amplitude modulation Options R S SMF B20 Manual operation See State ASK on page 266 SOURce hw DM EXTernal POLarity ch Polarity Sets the polarity of the exter...

Страница 479: ... Selects the source for the FSK modulation signal Parameters Source EXT1 EXT2 PGENerator RANDom EXT 1 EXT 2 Selects the external inputs either EXT1 or EXT2 as the source for FSK modulation PGEN Selects the internal pulse generator as source for FSK modula tion RAND Selects random pulses generated by the noise generator as the source for FSK modulation RST EXT1 Example SOUR DM FSK SOUR EXT1 selects...

Страница 480: ...ge 267 SOURce hw DM PSK SOURce Source The command selects the source for the PSK modulation signal Parameters Source EXT1 EXT2 PGENerator RANDom EXT 1 EXT 2 Selects the external inputs either EXT1 or EXT2 as the source for PSK modulation PGEN Selects the internal pulse generator as source for PSK modula tion RAND Selects random pulses generated by the noise generator as the source for PSK modulati...

Страница 481: ...d at the same time thus enabling two tone FM modulation For information about the required options see Chapter 5 5 3 Frequency Modulation FM on page 259 SOURce hw FM ch DEViation 466 SOURce hw FM MODE 467 SOURce hw FM RATio 467 SOURce hw FM ch SOURce 467 SOURce hw FM ch STATe 468 SOURce hw FM ch DEViation Deviation Sets the deviation of the frequency modulation signal in Hz The maximum deviation d...

Страница 482: ...M selects normal mode for external frequency modulation Options R S SMF B20 Manual operation See Mode Frequency Modulation on page 261 SOURce hw FM RATio Ratio Sets the FM ratio FM2 to FM 1 in percent Parameters Ratio float Range 0 to 100 Increment 0 01 RST 100 Example FM RAT 40PCT sets 40 percent FM2 FM1 ratio Options R S SMF B20 Manual operation See Ratio FM 2 1 on page 261 SOURce hw FM ch SOURc...

Страница 483: ...ion for signal channel 1 Options R S SMF B20 Manual operation See State on page 260 7 13 6 SOURce FREQuency Subsystem This subsystem contains the commands used to define the frequency settings for the RF sources and sweeps SOURce hw FREQuency CENTer 468 SOURce hw FREQuency CW FIXed 469 SOURce hw FREQuency CW FIXed RCL 470 SOURce hw FREQuency MANual 470 SOURce hw FREQuency MODE 471 SOURce hw FREQue...

Страница 484: ...t 0 shifts the frequencies corresponding to the set value 100 kHz fMULTiplier fOFFSet fmax fMULTiplier fOFFSet Parameters Center float Range full frequency range Increment see the data sheet RF characteristics Resolution of setting RST depends on model Example FREQ CENT 400 MHz sets the center frequency for the frequency sweep to 400 MHz FREQ SPAN 200 MHz sets a span of 200 MHz This sets the sweep...

Страница 485: ... full frequency range Increment see the data sheet RF characteristics Resolution of setting RST 100 MHz Example FREQ 15GHz sets the frequency of RF output signal to 15 GHz Manual operation See RF Freq on page 150 SOURce hw FREQuency CW FIXed RCL Rcl Determines whether the RF frequency value is retained or taken from a loaded instru ment configuration when you recall instrument settings with the co...

Страница 486: ...ULTiplier fOFFset fSTOP fMULTiplier fOFFset Parameters Manual float Range full frequency range Increment see the data sheet RF characteristics Resolution of setting Example SWE MODE MAN sets the Step sweep mode Example FREQ MODE SWE sets the frequency sweep mode The sweep start frequency is output FREQ MAN UP triggers the next higher sweep step FREQ MAN 500MHz outputs 500 MHz RF frequency must e w...

Страница 487: ...eans of values loaded from a list To configure the list mode settings use the commands of the SOURce LIST Subsystem RST CW Example FREQ MODE SWE sets the SWEep mode Manual operation See State Frequency Sweep on page 162 SOURce hw FREQuency MULTiplier Multiplier Sets the value for the multiplication factor of a subsequent downstream instrument Parameters Multiplier float Range 1 to dynamic Incremen...

Страница 488: ...nation with the center frequency setting SOURce hw FREQuency CENTer defines the sweep range This parameter is related to the start and stop frequencies If you change the fre quency the span changes accordingly fSPAN fSTOP fSTARt fSTARt fSTOP is permitted Parameters Span float Range full frequency range Increment see the data sheet RF characteristics Resolution of setting RST 400E6 Example FREQ CEN...

Страница 489: ...ristics Resolution of setting RST 100 MHz Example FREQ STARt 1 MHz sets the start frequency for the frequency sweep to 1 MHz FREQ STOP 2 GHz sets the stop frequency for the frequency sweep to 2 GHz Manual operation See Start Freq Frequency Sweep on page 165 SOURce hw FREQuency STOP Stop Sets the stop frequency for the RF sweep This parameter is related to the center frequency and span If you chang...

Страница 490: ...see the data sheet RF characteristics Resolution of setting RST 1E6 Example FREQ STEP 50 kHz sets the step width for the frequency setting to 50 kHz Manual operation See Variation Step on page 153 SOURce hw FREQuency STEP MODE Mode Activates USER or deactivates DECimal the user defined step width used when varying the frequency value with the frequency values UP DOWN The command is linked to the c...

Страница 491: ...a EXT 1 and or EXT 2 input Parameters Coupling AC DC AC The DC voltage component is disconnected from the modulation signal DC The modulation signal is not changed RST AC Example SOUR INP MOD COUP1 AC selects the coupling mode AC for external modulation input EXT1 Options R S SMF B20 Manual operation See Coupling External Inputs on page 255 SOURce hw INPut MODext IMPedance ch Impedance Sets the im...

Страница 492: ...Sweep mode and for analog modulation Two internal LF generators and a noise generator are available with option R S SMF B20 The suffix for LFOutput ch denotes the selected LF generator The source for the LF sweep LF generator 1 or 2 is selected with command SOURce LFOutput SWEep FREQuency SOURce Example The following example shows how to set an LF sweep 1 Set the sweep range LFOutput FREQuency STA...

Страница 493: ... FREQuency RETRace 488 SOURce hw LFOutput SWEep FREQuency RUNNing 489 SOURce hw LFOutput SWEep FREQuency SHAPe 489 SOURce hw LFOutput SWEep FREQuency SPACing 489 SOURce hw LFOutput SWEep FREQuency STEP LINear 490 SOURce hw LFOutput SWEep FREQuency STEP LOGarithmic 491 SOURce LFOutput SWEep VOLTage DWELl 492 SOURce LFOutput SWEep VOLTage EXECute 492 SOURce LFOutput SWEep VOLTage LFSource 492 SOURce...

Страница 494: ...dwidth BW0M2 BW10m RST BW10m Example SOUR LFO1 BAND BW0M2 selects the bandwith 200 kHz for the external feed Options R S SMF B20 Manual operation See Bandwidth External Inputs on page 255 SOURce LFOutput ch FREQuency Frequency Sets the frequency of the LF signal in LFO FREQ MODE CW FIXed mode Note If signal source Internal is set the instrument performs the analog modulations AM FM ɸM PM with this...

Страница 495: ...ulation generator Resolution of frequency setting RST 1000 Example LFO SWE MODE MAN sets the Step sweep mode LFO FREQ MAN 5 kHz sets an LF frequency of 5 kHz for the next step in the Step sweep mode LFO FREQ MODE SWE sets the LF Sweep mode An LF frequency of 5 kHz is output LFO FREQ MAN 5 1 kHz triggers the next sweep step with a frequency of 5 1 kHz Options R S SMF B20 Manual operation See Curren...

Страница 496: ... LFO FREQ MODE SWE sets the sweep mode Options R S SMF B20 Manual operation See State on page 278 SOURce hw LFOutput FREQuency STARt Start Sets the start frequency for the LF sweep Parameters Start float Range full frequency range Increment see the data sheet Resolution of frequency setting RST 1 KHz Example RST activates all presettings LFO SWE MODE AUTO TRIG0 SOUR SING LFO FREQ STAR 1 kHz LFO FR...

Страница 497: ...the LF output monitoring mode The settings for the LF output are synchron ized to amplitude modulation or frequency phase modulation settings Parameters Mode OFF AM FMPM RST OFF Example SOUR LFO MON MODE AM sets the LF output settings to be synchronized to the amplitude modulation signal Options R S SMF B20 Manual operation See Monitoring LF Output on page 286 SOURce LFOutput OFFSet Offset Sets a ...

Страница 498: ...xample SOUR LFO1 ON activates the LF output Options R S SMF B20 Manual operation See State LF Output on page 287 SOURce hw LFOutput SWEep FREQuency DWELl Dwell Sets the dwell time for each frequency step of the sweep Tip It is recommended to switch off the Display Update for optimum sweep perform ance especially with short dwell times SYSTem DISPlay UPDate OFF Parameters Dwell float Range see data...

Страница 499: ...S SMF B20 Manual operation See Generator on page 281 SOURce LFOutput SWEep FREQuency MARKer ACTive Active The command activates the selected marker The active marker is output with a higher voltage than all other markers Parameters Active NONE M01 M02 M03 M04 M05 M06 M07 M08 M09 M10 RST NONE Example SOUR LFO SWE FREQ MARKer ACT M05 switches on marker 5 Options R S SMF B20 Manual operation See Acti...

Страница 500: ...utput SWEep FREQuency MARKer ch FREQuency Frequency The command sets the frequency of the selected marker If the marker is switched on the signal level at the MARKER output changes on reaching the frequency mark Parameters Frequency float Range 0 1 to 10E6 Increment 0 1 RST 300 MHz Example SOUR LFO SWE MARK1 FRQ 200Hz sets the frequency mark for marker 1 to 200 Hz Options R S SMF B20 Manual operat...

Страница 501: ...ed with command SOURce LFOutput SWEep FREQuency MARKer AMPLitude on reaching the mark Parameters VState 0 1 OFF ON RST 0 Example SOUR LFO SWE FREQ MARK1 VST ON the output level is reduced by a constant value if frequency marker 1 is executed Options R S SMF B20 Manual operation See Amplitude Marker LF Frequency Marker on page 285 SOURce hw LFOutput SWEep FREQuency MODE Mode Sets the cycle mode of ...

Страница 502: ... entered with SOURce hw LFOutput FREQuency MANual takes no effect With manual control the frequency increases or decreases depending on the direction of the rotary encoder by the value specified under SOUR LFO SWE FREQ STEP LIN linear spac ing or STEP LOG logarithmic spacing STEP Each trigger triggers one sweep step only The frequency increases by the value entered with SOURce hw LFOutput SWEep FR...

Страница 503: ... the remote control command determines the number of steps in the dialog the instrument displays the number of transitions according to Count fSTOP fSTARt step_log Since Count is an integer the result may be rounded Parameters Points integer Range 2 max Example LFO FREQ STAR sets the start frequency to 2 kHz LFO FREQ STOP sets the stop frequency to 20 kHz LFO SWE SPAC LIN sets linear sweep spacing...

Страница 504: ...Shape Sets the cycle mode for a sweep sequence shape Parameters Shape SAWTooth TRIangle SAWTooth A sweep runs from the start to the stop frequency A subsequent sweep starts at the start frequency that menas the shape of the sweep sequence resembles a sawtooth TRIangle A sweep runs from the start to the stop frequency and back thatnt menas the shape of the sweep resembles a triangle A subsequent sw...

Страница 505: ... on page 491 RAMP With the ramp sweep a synthesized continuous analog fre quency sweep is provided for a set sweep time RST LINear Example LFO SWE SPAC LIN selects linear sweep spacing Options R S SMF B20 Manual operation See Spacing on page 282 SOURce hw LFOutput SWEep FREQuency STEP LINear Linear Sets the step size for linear LF frequency sweep steps This parameter correlates with the number of ...

Страница 506: ...e frequency is increased by a logarithmically calculated fraction of the current fre quency according to step_logstep 1 fstep step_logstep x fstep fstep 1 fstep step_logstep 1 with fSTARt fSTOP and step the current number of the sweep steps This parameter correlates with the number of steps LFO SWE FREQ POIN within the sweep range as follows freq_points log fSTOP log fSTARt log step_log 1 If you c...

Страница 507: ...OURce LFOutput SWEep VOLTage MODE The command corresponds to the manual control command Execute Trigger The command triggers an event and therefore has no query form and no RST value Example SOUR LFO SWE VOLT MODE STEP sets the STEP trigger mode i e a trigger starts the sweep ini tially and then the sweep is generated continously SOUR LFO SWE VOLT EXEC triggers a level sweep Usage Event Options R ...

Страница 508: ...e has no query form and no RST value Example SOUR LFO SWE VOLT MARK AOFF switches off all level markers Usage Event SOURce hw LFOutput SWEep VOLTage MARKer ch VOLTage Voltage The command sets the voltage mark for the selected marker If the marker is switched on the signal level at the MARKER output changes on reaching the voltage mark Parameters Voltage float Range 0 to 6 Increment 1E 3 RST 0 dBm ...

Страница 509: ...d under VOLT STEP With remote control the level is set directly with the command VOLT MAN STEP Each trigger triggers one sweep step only The level increases by the value entered under SWEep VOLTage STEP LOGarithmic RST AUTO Example LFO SWE VOLT MODE AUTO selects mode Auto for a LF level sweep Options R S SMF B20 Manual operation See Mode LF Level Sweep on page 289 SOURce LFOutput SWEep VOLTage POI...

Страница 510: ...the start level value while it is waiting for the next trigger event You can enable this feature when you are working with sawtooth shapes in sweep mode Single or External Single Parameters State 0 1 OFF ON RST 0 Example TRIG0 SWE SOUR SING LFO VOLT MODE SWE LFO SWE VOLT SHAP SAWT LFO SWE VOLT RETR ON activates retrace function i e the level changes to the value at start level while waiting for th...

Страница 511: ...tions R S SMF B20 Manual operation See Shape LF Level Sweep on page 292 SOURce LFOutput SWEep VOLTage SPACing Spacing Sets the scale function for spacing of the LF level sweep Parameters Spacing LINear LOGarithmic RST LINear Example LFO SWE VOLT SPAC LIN Selects linear spacing of LV level sweep SOURce LFOutput SWEep VOLTage STEP LINear Linear Sets the step size for linear LF level sweep steps This...

Страница 512: ...n important consid eration An overview of the various names is given in the Table 7 2 Parameters Source SINGle BUS AUTO IMMediate EXTernal EAUTo AUTO IMMediate The trigger is free running i e the trigger condition is fulfilled continuously As soon as one sweep is finished the next sweep is started SINGle BUS One complete sweep cycle is triggered by the GPIB bus com mands SOURce LFOutput SWEep VOLT...

Страница 513: ... R S SMF B20 Manual operation See Pulse Duty Cycle LF Generator on page 276 SOURce hw LFOutput ch SHAPe PULSe PERiod Period Sets the period of the generated pulse The period determines the repetition frequency of the internal signal Parameters Period float Range 1E 6 to 100 Increment 1E 8 RST 1E 3 Example SOUR LFO2 SHAP PULS PER 10s sets a pulse period of 10s for the pulse shape of the signal of L...

Страница 514: ...s for the trapezoidal signal of the LF generator 2 Options R S SMF B20 Manual operation See Trapezoid Fall LF Generator on page 277 SOURce hw LFOutput ch SHAPe TRAPeze HIGH High Selects the high time for the trapeze shape of the LF generator Parameters High float Range see data sheet Increment see data sheet RST 10 µs Example SOUR LFO2 SHAP TRAP HIGH 10ms selects a high time of 10 ms for the trape...

Страница 515: ...ise time of 1 ms for the trapezoidal signal of the LF generator 2 Options R S SMF B20 Manual operation See Trapezoid Rise LF Generator on page 277 SOURce hw LFOutput ch SHAPe TRIangle PERiod Period Sets the period of the generated pulse The period determines the repetition frequency of the internal signal Parameters Period float Range 1E 6 to 100 Increment 10E 9 RST 0 001 Example SOUR LFO2 SHAP TR...

Страница 516: ...S SMF B20 Manual operation See Output Voltage LF Output on page 287 SOURce LFOutput VOLTage MANual Manual In Sweep mode SOUR LFO VOLT MODE SWE the command sets the level for the next sweep step in the Step sweep mode SOUR LFO SWE VOLT MODE MAN Here only level values between the settings SOUR LFO VOLT STAR and STOP are permitted Each sweep step is triggered by a separate SOUR LFO VOLT MAN command A...

Страница 517: ... S SMF B20 Manual operation See Current Level LF Level Sweep on page 292 SOURce LFOutput VOLTage MODE Mode The command sets the instrument operating mode and therefore also the commands used to set the LF output level Parameters Mode CW FIXed SWEep CW The instrument operates at a constant level The output level is set with SOURce LFOutput POWer SWEep The instrument operates in SWEep mode The level...

Страница 518: ... operation See Start Level LF Level Sweep on page 292 SOURce LFOutput VOLTage STOP Stop Sets the stop level value for the LF sweep As with the Level value entered in the LF Level menu the OFFSet value is also taken into consideration with this command The specified value range is therefore only effective if SOURce LFOutput SWEep POWer OFFSet is set to 0 The value range for other OFFSet values can ...

Страница 519: ...an existing list must be selected before the List mode is activa ted SOURce1 LIST SEL Old_list 4 Set the dwell time The dwell time determines the duration of the individual list steps SOURce1 LIST DWELl 3ms 5 Set the List mode The List mode determines the way in which the list is processed In the example the list is processed once only or repeatedly depending on the trigger setting SOURce1 LIST MO...

Страница 520: ...LIST CATalog Requests a list of available lists The individual lists are separated by commas The lists are stored with the fixed file extensions lsw in a directory of the user s choice The directory applicable to the commands is defined with the command MMEMory CDIR Return values Catalog string Example MMEM CDIR var Listmode selects the directory for the list mode files LIST CAT queries the availa...

Страница 521: ...e fixed file extensions lsw in a directory of the user s choice You can select the directory with the commands MMEMory CDIRectory or SOURce hw LIST CATalog RST does not affect data lists Example MMEM CDIR var Listmode selects the directory for the list mode files FREQ MODE SWE deactivates the list mode for RF output and activates the sweep mode LIST DEL ALL deletes all list mode files in the selec...

Страница 522: ...on Determines the extension of the ASCII file for import or export or to query existing files Parameters Extension TXT CSV RST TXT Example MMEM CDIR var import selects the directory for the ASCII files with frequency and level value pairs LIST DEXC AFIL EXT TXT selects ASCII files with the extension txt for the query LIST DEXC AFIL CAT queries the available files with extension txt Response list1 ...

Страница 523: ...COLumn Column Selects the separator between the frequency and level column of the ASCII table Parameters Column TABulator SEMicolon COMMa SPACe RST COMMa Example LIST DEXC MODE EXP selects that the list is exported into an ASCII file LIST DEXC AFIL SEL var list csv determines ASCII file list csv as destination for the list mode list data LIST DEXC AFIL SEP COL TAB defines a tabulator to separate t...

Страница 524: ...mp LIST DEXC EXEC imports the ASCII file data into the list mode file Usage Event Manual operation See Import Export List Mode on page 178 SOURce hw LIST DEXChange MODE Mode Selects if list mode lists should be imported or exported Depending on the selection here the file select command defines either the source or the destination for list mode lists and ASCII files Parameters Mode IMPort EXPort R...

Страница 525: ...imported LIST DEXC SEL var list_imp selects that the ASCII file list csv is imported into list mode list list_imp Manual operation See Select Destination Source List Mode on page 178 SOURce hw LIST DWELl Dwell Sets the dwell time The R S SMF generates the signal with the frequency power value pairs of each list entry for that particular period Parameters Dwell float Range 7E 4 to 100 Increment 1E ...

Страница 526: ...REQ 1 4GHz 1 3GHz 1 2GHz specifies the frequency values in list3 If the list already contains data it is overwritten Manual operation See Edit List Mode Data List Mode on page 174 SOURce hw LIST FREQuency POINts The command queries the length in points of the FREQuency component of the selected list Return values Points integer Range 0 to INT_MAX RST 0 Example LIST SEL var list3 selects list3 for ...

Страница 527: ...e current list Only the values in the set index range LIST INDex STARt LIST INDex STOP are processed in List mode Parameters Start integer Range 0 to list length RST 0 Example LIST SEL var list3 selects list3 for use in List mode LIST IND STAR 25 sets 25 as start index of the index range LIST IND STOP 49 sets 49 as stop index of the index range FREQ MODE LIST activates List mode The frequency leve...

Страница 528: ...re setting for list3 and stores the setting Usage Event Manual operation See Learn List Mode Data List Mode on page 173 SOURce hw LIST MODE Mode Selects how the list is to be processed similar to SOURce SWEep MODE Parameters Mode AUTO STEP AUTO Each trigger event triggers a complete list cycle Possible trigger settings for LIST TRIGger SOURce are AUTO SINGle and EXT STEP Each trigger event trigger...

Страница 529: ...W 0dBm 2dBm 2dBm 3dBm specifies the level values in list3 The number of level values must correspond to the number of frequency values The previ ous data is overwritten Manual operation See Edit List Mode Data List Mode on page 174 SOURce hw LIST POWer POINts Queries the length in points of the LEVel part of the selected list Return values Points integer Range 0 to INT_MAX RST 0 Example LIST SEL v...

Страница 530: ... var list3 selects list3 for editing Manual operation See List Mode Data List Mode on page 174 SOURce hw LIST TRIGger EXECute Starts the processing of a list in list mode It corresponds to the manual control com mand Execute Single Example SOUR LIST TRIG EXEC triggers the processing of the selected list Usage Event Manual operation See Execute Single List Mode on page 172 SOURce hw LIST TRIGger SO...

Страница 531: ...rigger Manual operation See Mode List Mode on page 172 7 13 10 SOURce MODulation Subsystem This subsystem contains the command for switching on off all modulations SOURce hw MODulation ALL STATe State Activates deactivates the modulations The command SOUR MOD ALL STAT OFF switches all modulations off A subsequent command SOUR MOD ALL STAT ON restores the status that was active before the last swit...

Страница 532: ...meters BWidth float Range 100E3 to 10E6 Increment 100E3 RST 100E3 Example NOIS BWID STAT ON enables bandwidth limitation NOIS BWID 1 MHz sets a system bandwidth of 1 MHz Options R S SMF B20 Manual operation See Bandwidth Noise on page 277 SOURce hw NOISe BWIDth STATe State Enables disables bandwidth limitation of noise Parameters State 0 1 OFF ON RST 0 Example NOIS BWID STAT ON enables bandwidth l...

Страница 533: ... signal in the system bandwidth for enabled bandwidth limitation Return values Absolute float RST 3 84 MHz Example NOIS BWID STAT ON enables bandwidth limitation NOIS BWID 10 MHz sets a system bandwidth of 1 MHz NOIS LEV ABS queries the noise level in the system bandwidth Usage Query only Options R S SMF B20 Manual operation See Noise Level Noise on page 278 7 13 12 SOURce PGEN Subsystem This subs...

Страница 534: ...7 SOURce hw PGENerator OUTPut STATe State Activates deactivates the pulse generator output Parameters State 0 1 OFF ON RST 0 Example PGEN OUTP ON activates pulse generator output Options R S SMF K23 Manual operation See Pulse Output State Pulse Generator on page 297 7 13 13 SOURce PHASe Subsystem This subsystem contains the commands for adjusting the phase of the RF output signal relative to a ref...

Страница 535: ...m The PM subsystem contains the commands for checking the phase modulation The settings for the internal modulation source LF generator are made in the SOURce LFOutput subsystem The external signal is input at the EXT1 2 connectors For information on the required options see Chapter 5 5 4 Phase Modulation PhiM on page 262 SOURce PM ch DEViation 520 SOURce hw PM MODE 521 SOURce hw PM RATio 521 SOUR...

Страница 536: ... or high PhiM deviation HBANdwidth Provides maximum range of modulation bandwidth Recommen ded for high modulation frequencies LNOise Provides modulation with phase noise and spurious characteris tics close to CW mode The range for modulation bandwidth and PhiM deviation is limited see data sheet RST HBANdwidth Example PM MODE LNO selects Low Noise mode for external phase modulation Options R S SM...

Страница 537: ...e Activation of PM deactivates frequency modulation FM Suffix FM ch 1 2 determines the modulation signal channel Parameters State 0 1 OFF ON RST 0 Example PM1 STAT ON activates PM modulation for path 1 Options R S SMF B20 Manual operation See State on page 263 7 13 15 SOURce POWer Subsystem This subsystem contains the commands for setting the output level level control and level correction of the ...

Страница 538: ...r SPC TARGet 531 SOURce hw POWer STARt 532 SOURce hw POWer STEP INCRement 532 SOURce hw POWer STEP MODE 533 SOURce hw POWer STOP 533 SOURce hw POWer ALC PMETer TYPE Type The command selects the power meter used for external level control Parameters Type NRP NRVD HP436 HP437 HP438 ML2438 P44X RST NRP Example POW ALC PMET TYPE HP438 the specified power meter is used for external level control Manual...

Страница 539: ...The internal detector is switched on DIODe A diode detector can be connected to the EXT ALC input PMETer A power meter can be connected to the EXT ALC input RST INTernal Example POW ALC SOUR INT sets the internal detector for level control Manual operation See Source External Level Control on page 194 SOURce hw POWer ALC STATe State Activates automatic level control Parameters State 0 OFF 1 ON ON ...

Страница 540: ...gnal is switched off This setting is recommended for applications that require a high level of noise suppression RST NORMal Example SOUR POW ATT RFOF MODE ATT sets the RF OFF attenuator to maximum Options R S SMF B26 or R S SMF B27 Manual operation See RF OFF Mode Attenuation Settings on page 176 SOURce POWer ATTenuation Attenuation Sets the attenuation Parameters Attenuation integer Range 0 to 11...

Страница 541: ...t level Range Minimum level to Maximum level RST 30 Example The keywords of this command are largely optional Therefore both the long and short form of the command are shown SOUR POW LEV IMM AMPL 15 or POW 15 sets the RF level at output A to 15 dBm Manual operation See RF Level on page 180 SOURce hw POWer LEVel IMMediate OFFSet Offset Note The level offset is also effective for level sweeps Specif...

Страница 542: ...rument settings with the command RCL Parameters Rcl INCLude EXCLude INCLude Takes the level value of the loaded settings EXCLude Retains the current level when an instrument configuration is loaded RST INCLude Example POW RCL INCL takes the level value from an instrument configuration loaded with command RCL Manual operation See Exclude Level on page 142 SOURce hw POWer LIMit AMPLitude Amplitude L...

Страница 543: ...W MAN command As with the Level value entered in the RF Level menu the OFFSet value is also taken into consideration with this command The specified value range is therefore only effective if SOURce POWer OFFSet is set to 0 The value range for other OFFset values can be calculated using the following formula Minimum level OFFSet Maximum level OFFSet Parameters Manual float Minimum level Maximum le...

Страница 544: ...STOP POW MAN settings Manual operation See State Level Sweep on page 184 SOURce hw POWer POWer Power Sets the RF level of the RF output connector The level entered with this command corresponds to the level at the RF output i e any offset entry is not taken into consideration Note The SCPI command SOURce hw POWer LEVel IMMediate AMPLitude sets the level of the Level display i e the level containin...

Страница 545: ...ers PowCntrlCRange float Range 0 to 50 Increment 0 01 RST 30 Default unit dB Example POW SPC CRAN 15 sets the capture range to 15 dB Manual operation See Catch Range on page 206 SOURce hw POWer SPC DELay PowCntrlDelay Defines a waiting period between the level adjustment of the generator and the next measurement of the power sensor Parameters PowCntrlDelay integer Range 0 to 1000 RST 0 Example POW...

Страница 546: ...sor on page 205 SOURce hw POWer SPC STATe PowCntrlState Activates power control using the selected sensor The control loop periodically adjusts the generator output After switching off the running loop is completed Parameters PowCntrlState 0 1 OFF ON RST 0 Example POW SPC STAT ON activates power control Manual operation See State on page 205 SOURce hw POWer SPC TARGet PowCntrlTarget Sets the nomin...

Страница 547: ...vel sweep Step size setting resolution RST 30 Example POW STAR 20 dBm sets the start level for the level sweep to 15 dBm for RF output A Manual operation See Start Level Level Sweep on page 188 SOURce hw POWer STEP INCRement Increment Sets the step width for POW STEP MODE USER To adjust the level step by step with this step size use the POW UP and POW UP com mands Note This value also applies to t...

Страница 548: ...w POWer STOP Stop Sets the stop level for the RF sweep Note You can select any level within the setting range The range is defined by the SOURce hw POWer STARt value and this stop value A defined offset SOURce hw POWer LEVel IMMediate OFFSet affects the level values according to the formula Minimum level OFFSet Maximum level OFFSet Parameters Stop float Determines the last level value of the sweep...

Страница 549: ...vel SOURce FREQuency CW 4000000000 SOURce POWer LEVel IMMediate AMPLitude 25 Configure the pulse modulation settings Select the internal modulation generator SOURce PULM SOURce INT Set trigger mode SOURce PULM TRIGger MODE AUTO Select pulse mode SOURce PULM MODE DOUB Alternatively configure the pulse modulation settings for external modulation source Select the external modulation source SOURce PU...

Страница 550: ...n data list Otherwise the instrument generates an error Reset the instrument to start from an initial state RST CLS Set the RF signal frequency and level SOURce FREQuency CW 4000000000 SOURce POWer LEVel IMMediate AMPLitude 25 Create a pulse train data list Select the directory MMEM CDIR var user Lists Create and or select the pulse train data file SOURCe PULM TRAin SEL P_FIVE Enter the pulse trai...

Страница 551: ...me 543 SOURce hw PULM TRAin ONTime POINts 543 SOURce hw PULM TRAin REPetition 544 SOURce hw PULM TRAin REPetition POINts 544 SOURce hw PULM TRAin SELect 545 SOURce hw PULM TRIGger EXTernal GATE POLarity 545 SOURce hw PULM TRIGger EXTernal IMPedance 545 SOURce hw PULM TRIGger EXTernal LEVel 546 SOURce hw PULM TRIGger EXTernal SLOPe 546 SOURce hw PULM TRIGger MODE 546 SOURce hw PULM TRAin DEXChange ...

Страница 552: ...float Range 10 ns to 100 s Increment 5 ns RST 3 us Example PULM DOUB DEL 22 us 22 us elapse between the beginning of the first pulse and the beginning of the second pulse in double pulse mode Options R S SMF K23 Pulse Generator Manual operation See Double Pulse Delay Pulse Generator on page 297 SOURce hw PULM DOUBle STATe State Enables disables double pulse generation The two pulses are generated ...

Страница 553: ...lse generation The two pulses are generated in one pulse period PTRain A user defined pulse train is generated The pulse train is defined by value pairs of on and off times that can be entered in a pulse train list RST SINGle Example PULM MODE DOUB enables double pulse generation Options R S SMF K23 Pulse Generator R S SMF K27 Pulse Train Manual operation See Pulse Mode Pulse Generator on page 296...

Страница 554: ... to 100 s Increment 1us 5 ns RST 10 us Example PULM PER 220 us the pulse period is 220 us Options R S SMF K23 Pulse Generator Manual operation See Pulse Period Pulse Generator on page 296 SOURce hw PULM POLarity Polarity Sets the polarity between modulating and modulated signal This command is effective only for an external modulation signal Parameters Polarity NORMal INVerted NORMal The RF signal...

Страница 555: ...on source PULM STAT ON activates the pulse modulation Options R S SMF K3 Narrow Pulse Modulation Manual operation See Source on page 268 SOURce hw PULM STATe State Activates the pulse modulation Parameters State 0 1 OFF ON RST 0 Example PULM STAT ON activates pulse modulation Options R S SMF K23 Pulse Generator Manual operation See State on page 268 SOURce hw PULM SYNC Sync When enabled the extern...

Страница 556: ...he pulse train files PULM TRA CAT queries the available files Response P_CONS P_INCR P_DECR the lists P_CONS P_INCR and P_DECR are available Usage Query only Options R S SMF K27 Pulse Train Manual operation See Pulse Train Data Pulse Generator on page 300 SOURce hw PULM TRAin DELete Filename Deletes the specified pulse train file The files are stored with the fixed file extensions pulstrn in a dir...

Страница 557: ...er Lists selects the directory for the pulse train files PULM TRA SEL P_INCR selects P_INCR for editing P_INCR is created if it does not yet exist PULM TRA OFFT 10ns 30ns 40ns specifies the off time values in P_INCR If the list already con tains data it is overwritten Options R S SMF K27 Pulse Train Manual operation See Edit Pulse Train Data on page 301 SOURce hw PULM TRAin OFFTime POINts Queries ...

Страница 558: ...ain files PULM TRA SEL P_INCR selects P_INCR for editing P_INCR is created if it does not yet exist PULM TRA ONT 10ns 30ns 40ns specifies the on time values in P_INCR If the list already con tains data it is overwritten Options R S SMF K27 Pulse Train Manual operation See Edit Pulse Train Data on page 301 SOURce hw PULM TRAin ONTime POINts Queries the length in points of the ontime component of th...

Страница 559: ... If the list already con tains data it is overwritten PULM TRA OFFT 10ns 30ns 40ns specifies the offtime values in P_INCR If the list already con tains data it is overwritten PULM TRA REP 1 8 3 specifies the number of repetitions for each value pair Options R S SMF K27 Pulse Train Manual operation See Edit Pulse Train Data on page 301 SOURce hw PULM TRAin REPetition POINts Queries the length in po...

Страница 560: ...ory for the pulse train files PULM TRA SEL P_INCR selects P_INCR for editing P_INCR is created if it does not yet exist Options R S SMF K27 Pulse Train Manual operation See Pulse Train Data Pulse Generator on page 300 SOURce hw PULM TRIGger EXTernal GATE POLarity Polarity Selects the polarity of the Gate signal The signal is supplied via the PULSE IN connector Parameters Polarity NORMal INVerted R...

Страница 561: ...EXT SLOP NEG The pulse generator is triggered on the negative slope of the external trigger signal Manual operation See External Trigger Input Slope Pulse Generator on page 299 SOURce hw PULM TRIGger MODE Mode Selects the trigger mode for pulse modulation Parameters Mode AUTO EXTernal EGATe SINGle AUTO The pulse modulation is generated continuously EXTernal The pulse modulation is triggered by an ...

Страница 562: ...tension txt Response train1 train2 the ASCII files train1 txt and train2 txt are available Usage Query only Options R S SMF K27 Pulse Train Manual operation See Select ASCII Source Destination Import Export Pulse Train Files on page 303 SOURce hw PULM TRAin DEXChange AFILe EXTension Extension The command selects the file extension of the ASCII file to be imported or exported Selection TXT text fil...

Страница 563: ...v is imported into pulse train list train_imp Options R S SMF K27 Pulse Train Manual operation See Select ASCII Source Destination Import Export Pulse Train Files on page 303 SOURce hw PULM TRAin DEXChange AFILe SEParator COLumn Column Parameters Column TABulator SEMicolon COMMa SPACe RST SEMicolon Example PULM TRA DEXC MODE EXP selects that the pulse train list is exported into an ASCII file MMEM...

Страница 564: ...the pulse train list train_imp is imported into ASCII file train csv Options R S SMF K27 Pulse Train Manual operation See Decimal Point ASCII File Settings on page 303 SOURce hw PULM TRAin DEXChange EXECute Starts the export or import of the selected file When import is selected the ASCII file is imported as pulse train list When export is selected the pulse train list is exported into the selecte...

Страница 565: ...in_imp selects that the ASCII file train csv is imported into pulse train list train_imp Options R S SMF K27 Pulse Train Manual operation See Mode Import Export Pulse Train Files on page 302 SOURce hw PULM TRAin DEXChange SELect Filename The command selects the pulse train list to be imported or exported The pulse train files are stored with the fixed file extensions pulstrn in a directory of the ...

Страница 566: ...Width Pulse Generator on page 296 7 13 17 SOURce ROSCillator Subsystem This subsystem contains the commands for setting the external and internal reference frequency The settings of the reference oscillator are not affected by an instrument reset RST on page 352 They are only reset to factory state by the factory preset SYSTem FPReset on page 355 SOURce ROSCillator EFC STATe 551 SOURce ROSCillator...

Страница 567: ...uency on page 158 SOURce ROSCillator EXTernal RFOFf STATe State Activates that RF output is automatically switched off when in external source mode no reference signal is supplied This setting ensures that no improper RF signal due to the missing external reference signal is output and used for measurements In addition to the error message Ext Ref missing the instrument generates the mes sage RF o...

Страница 568: ... wideband setting for synchronization bandwidth Manual operation See Synchronization Bandwidth on page 158 SOURce ROSCillator INTernal ADJust VALue Value Specifies the frequency correction value adjustment value Parameters Value integer Range 0 to maximum value see data sheet Increment see data sheet RST Example ROSC ADJ VAL 456 Sets the adjustment value to 456 Manual operation See Adjustment DAC ...

Страница 569: ...ector at the rear of the instrument The instrument is informed of the frequency of the external refer ence signal by means of the command SOURce ROSCillator EXTernal FREQuency RST Example ROSC SOUR EXT Selects the external source ROSC EXT FREQ 5 MHz Informs the instrument that the external reference has a fre quency of 5 MHz Manual operation See Source on page 158 SOURce ROSCillator OUTPut SOURce ...

Страница 570: ... All sweeps including the LF sweep can be set independently from each other This example shows how to set up a frequency sweep 1 Set the sweep range SOURce FREQuency CENTer 200 MHz SOURce FREQuency SPAN 300 MHz 2 Select linear or logarithmic spacing SOURce SWEep FREQuency SPACing LIN 3 Set the step width and dwell time SOURce SWEep FREQuency STEP LINear 20 MHz SOURce SWEep FREQuency DWELl 12 ms 4 ...

Страница 571: ...ncy TIME 564 SOURce hw SWEep MARKer OUTPut POLarity 564 SOURce hw SWEep POWer AMODe 564 SOURce hw SWEep POWer DWELl 565 SOURce hw SWEep POWer EXECute 565 SOURce hw SWEep POWer MARKer ACTive 565 SOURce hw SWEep POWer MARKer AOFF 566 SOURce hw SWEep POWer MARKer ch POWer 566 SOURce hw SWEep POWer MARKer ch STATe 566 SOURce hw SWEep POWer MODE 566 SOURce hw SWEep POWer POINts 567 SOURce hw SWEep POWe...

Страница 572: ...The command activates the selected marker The active marker is output with a higher voltage than all other markers Parameters Active NONE M01 M02 M03 M04 M05 M06 M07 M08 M09 M10 RST NONE Example SOUR SWE FREQ MARK ACT M05 sets marker 5 to be the active marker Manual operation See Active Marker RF Frequency Marker on page 170 SOURce hw SWEep FREQuency MARKer AMPLitude Amplitude Sets the amplitude m...

Страница 573: ...k for marker 1 to 1 5 GHz Manual operation See Frequency RF Frequency Marker on page 169 SOURce hw SWEep FREQuency MARKer ch FSTate FState The command switches on or off the selected marker If the marker is switched on the signal level at the MARKER output changes on reaching the frequency mark Parameters FState 0 1 OFF ON RST OFF Example SWE MARK1 FST ON switches on marker 1 Manual operation See ...

Страница 574: ...pliant Parameters Mode AUTO MANual STEP AUTO Each trigger triggers exactly one complete sweep MANual The trigger system is not active Each frequency step of the sweep is triggered individually either by varying the Current Frequency value using the rotary knob under manual control or by means of a FREQ MAN command under remote control With manual control the frequency increases or decreases depend...

Страница 575: ...quency sweep points set with this remote control command It is up to the different clculation methods the remote control command determines the number of steps in the dialog the instrument displays the number of transitions according to Count fSTOP fSTARt step_log Since Count is an integer the result may be rounded Parameters Points integer Range 2 max Example FREQ STAR sets the start frequency to...

Страница 576: ... shape Parameters Shape SAWTooth TRIangle SAWTooth One sweep runs from start to stop frequency Each subsequent sweep starts at the start frequency i e the shape of the sweep sequence resembles a sawtooth TRIangle One sweep runs from start to stop frequency and back i e the shape of the sweep resembles a triangle Each subsequent sweep starts at the start frequency RST SAWTooth Example SOUR SWE SHAP...

Страница 577: ...sweep is provided for a set sweep time The sweep time is entered under SOURce hw SWEep FREQuency TIME on page 564 RST LINear Example SWE SPAC LIN selects linear sweep spacing for a frequency sweep at the RF output Manual operation See Spacing Frequency Sweep on page 165 SOURce hw SWEep FREQuency STEP LINear Linear Sets the step size for linear RF frequency sweep steps This parameter is related to ...

Страница 578: ...The frequency is increased by a logarithmically calculated fraction of the current fre quency according to step_logn 1 fn step_logn x fn fn 1 fn step_logn 1 with fSTARt fSTOP and n number of sweep steps This parameter correlates with the number of steps SWE FREQ POIN within the sweep range as follows freq_points log fSTOP log fSTARt log step_log 1 If you change the step size the number of steps ch...

Страница 579: ...ng the mark INVerted The marker level switches to LOW after reaching the mark RST NORMal Example SWE FREQ MARK OUTP POL NORM sets the marker output polarity to normal Options R S SMF B20 Manual operation See Marker Polarity on page 118 SOURce hw SWEep POWer AMODe AMode Selects the ranges of level settings for the level sweep The sweep is either performed in the low level or in the high level range...

Страница 580: ... executed depends on the set sweep mode SOURce SWEep POWer MODE The command corresponds to the manual control command Execute Trigger Example SWE POW MODE STEP sets the STEP trigger mode i e a trigger starts the sweep ini tially and then the sweep is generated continuously SWE POW EXEC triggers a level sweep at the RF output Usage Event Manual operation See Execute Single Sweep Level Sweep on page...

Страница 581: ...ARKER output changes on reaching the level mark Parameters Power float RST 0 Default unit dBm Example SOUR SWE POW MARK1 POW 50 sets the power mark for marker 1 to 50 dBm Manual operation See Level RF Level Marker on page 191 SOURce hw SWEep POWer MARKer ch STATe State The command switches on or off the selected marker If the marker is switched on the signal level at the MARKER output changes on r...

Страница 582: ...xample SWE POW MODE AUTO selects Mode Auto for a level sweep at RF output Manual operation See Mode Level Sweep on page 185 SOURce hw SWEep POWer POINts Points Determines the number of steps for the RF level sweep within the sweep range This parameter always applies to the currently set sweep spacing and correlates with the step size as follows pow_points fSTOP fSTARt step_log 1 To determine the s...

Страница 583: ...nable this feature when you are working with sawtooth shapes in sweep mode Single or External Single Parameters State 0 1 OFF ON RST 0 Example TRIG0 SWE SOUR SING POW MODE SWE SWE POW SHAP SAWT SWE POW RETR ON activates retrace function i e the level changes to the value at start level while waiting for the next trigger event Manual operation See Retrace RF Level Sweep on page 188 SOURce hw SWEep ...

Страница 584: ... the sweep spacing mode The sweep spacing for level sweeps is always lin ear Return values Mode LINear RST LINear Example SWE POW SPAC MODE queries the sweep spacing for a level sweep at RF output Result LIN linear spacing Usage Query only SOURce hw SWEep POWer STEP LOGarithmic Logarithmic Sets a logarithmically determined sweep step size for the RF level sweep It is expressed in decibels and you ...

Страница 585: ... contains the commands for the status reporting system See also Chap ter 6 5 Status Reporting System on page 339 for detailed information RST on page 352 has no effect on the status registers Value ranges Queries return the current value of the respective register which permits a check of the device status Return values A decimal value in the range 0 to 32767 215 1 The configuration commands set t...

Страница 586: ...forwarded to the sum bit in the status byte These events can be used for a service request Parameters Enable string Example STAT OPER ENAB 32767 all events are forwarded to the sum bit of the status byte STATus OPERation EVENt Event Queries the content of the EVENt part of the STATus OPERation register This part contains information on the actions performed in the instrument since the last readout...

Страница 587: ... e all transitions from 0 to 1 are detected All NTRansition parts are set to 0 i e a transition from 1 to 0 in a CONDition bit is not detected The ENABle parts of STATus OPERa tion and STATus QUEStionable are set to 0 i e all events in these registers are not passed on Parameters Preset string Example STAT PRES resets the status registers STATus QUEStionable CONDition Condition Queries the content...

Страница 588: ...of the NTRansition part of the STATus QUEStionable register If a bit is set a transition from 1 to 0 in the condition part causes an entry to be made in the EVENt part of the register Parameters Ntransition string Example STAT OPER NTR 0 a transition from 1 to 0 in the condition part of the Status Ques tionable register does not cause an entry to be made in the EVENt part STATus QUEStionable PTRan...

Страница 589: ...al generation SYSTem ERRor ALL 575 SYSTem ERRor CODE ALL 575 SYSTem ERRor CODE NEXT 576 SYSTem ERRor COUNt 576 SYSTem ERRor NEXT 577 SYSTem SERRor 577 SYSTem DLOCk 577 SYSTem KLOCk 578 SYSTem ULOCk 578 SYSTem COMMunicate GPIB LTERminator 578 SYSTem COMMunicate GPIB SELF ADDRess 579 SYSTem COMMunicate NETWork COMMon DOMain 579 SYSTem COMMunicate NETWork COMMon HOSTname 579 SYSTem COMMunicate NETWor...

Страница 590: ...em WAIT 589 SYSTem ERRor ALL Queries the error event queue for all unread items and removes them from the queue The response is a comma separated list of error number and a short description of the error in FIFO order Positive error numbers are instrument dependent Negative error numbers are reserved by the SCPI standard Return values All string List of Error event_number Error event_description D...

Страница 591: ...nly the error number is returned and not the entire error text Return values Next string 0 No error i e the error queue is empty positive value Positive error numbers denote device specific errors negative value Negative error numbers denote error messages defined by SCPI Example SYST ERR CODE queries the oldest entry in the error queue Response 0 No errors have occurred since the error queue was ...

Страница 592: ...o error No errors have occurred since the error queue was last read out Usage Query only Manual operation See History on page 78 SYSTem SERRor This command returns a list of all errors existing at the time when the query is started This list corresponds to the display on the info page under manual control Return values StaticErrors string Example SYSTem SERRor queries all errors existing in the er...

Страница 593: ...n trols set SYST KLOC OFF Manual operation See User Interface on page 130 SYSTem ULOCk Mode Locks or unlocks the user interface of the instrument Parameters Mode ENABled DONLy DISabled ENABled Unlocks the display and all controls for the manual operation DONLy Locks the controls for the rmanual operation of the instrument The display shows the current settings DISabled Locks the controls for the r...

Страница 594: ... mes sage EOI is accepted as the terminator SYSTem COMMunicate GPIB SELF ADDRess Address Sets the GPIB address Parameters Address integer Range 1 to 30 RST 28 Example SYSTem COMMunicate GPIB SELF ADDRess 28 sets GPIB address Manual operation See GPIB channel address on page 120 SYSTem COMMunicate NETWork COMMon DOMain Domain Sets the primary suffix that is the DNS name without the host name part P...

Страница 595: ...eters Workgroup string Example SYSTem COMMunicate NETWork COMMon WORKgroup TEST_09 sets the workgroup name Manual operation See Workgroup on page 115 SYSTem COMMunicate NETWork IPADdress DNS DNS Determines the net DNS server to resolve the name Parameters DNS string Example SYST COMM NETW IPAD DNS 123 456 0 1 Manual operation See DNS Server on page 117 SYSTem COMMunicate NETWork IPADdress MODE Mod...

Страница 596: ...ss GATeway 1 2 3 4 sets the IP address of the default gateway Manual operation See Default Gateway on page 116 SYSTem COMMunicate NETWork IPADdress SUBNet MASK Mask Sets the subnet mask Parameters Mask string Example SYSTem COMMunicate NETWork IPADdress SUBNet MASK 255 255 0 0 determines the subnet mask Manual operation See Subnet Mask on page 116 SYSTem COMMunicate NETWork MACaddress MacAddress Q...

Страница 597: ...the GPIB address use the command SYSTem COMMunicate GPIB SELF ADDRess Return values Resource string Example SYSTem COMMunicate GPIB RESource queries the VISA resource string Response GPIB 28 INSTR Usage Query only Manual operation See Visa Resource Strings on page 121 SYSTem COMMunicate NETWork RESource Queries the VISA resource string used for remote control of the instrument with VXI 11 protocol...

Страница 598: ...STR Usage Query only Manual operation See Visa Resource Strings on page 121 SYSTem COMMunicate SERial RESource Queries the visa resource string for the serial remote control interface This string is used for remote control of the instrument Return values Resource string Example SYSTem COMMunicate SERial RESource queries the VISA resource string Response ASRL1 INSTR Usage Query only Manual operatio...

Страница 599: ...ects 2 stop bits Manual operation See Stop Bits on page 121 SYSTem COMMunicate SOCKet RESource Queries the visa resource string for remote control via LAN interface using TCP IP socket protocol Return values Resource string Example SYSTem COMMunicate SOCKet RESource Response TCPIP 10 113 1 150 5025 SOCKET Usage Query only Manual operation See Visa Resource Strings on page 121 SYSTem IDENtification...

Страница 600: ...EX returns to the instrument specific GPIB command set selection SYST LANG HPxxxx Parameters Language string Example SYSTem LANGuage SCPI sets the SCPI command set Manual operation See Language on page 122 SYSTem PROTect ch STATe State Key Activates deactivates the specified protection level Parameters State select RST 1 Setting parameters Key integer The respective functions are disabled when the...

Страница 601: ...e SYST STAR COMP Response 1 The startup of the instrument is completed Usage Query only SYSTem DISPlay UPDate Update Switches the update of the display on off A switchover from remote control to manual control always sets the status of the update of the display to ON Parameters Update 0 1 OFF ON RST ON Example SYST DISP UPD OFF switches update of displayed parameter values off Manual operation See...

Страница 602: ...SYSTem HCLear Clears the history Example SYST HCL Deletes the history entries Usage Event SYSTem TIME Hour Minute Second Queries or sets the time for the instrument internal clock The parameter is protected in order to prevent accidental changes It can be accessed with protection level 1 see SYSTem PROTect ch STATe on page 585 Parameters Hour 0 23 0 59 0 59 Range 0 to 23 Minute integer Range 0 to ...

Страница 603: ...peration See Time Zone on page 114 SYSTem VERSion Queries the SCPI version the instrument s command set complies with Return values Version string Example SYST VERS queries the SCPI version Response 1996 The instrument complies with the SCPI version from 1996 Usage Query only SYSTem BIOS VERSion Queries the BIOS version of the instrument Return values Version string Example SYSTem BIOS VERSion que...

Страница 604: ...y the specified time This function is useful for example to execute an SCPI sequence automatically but with a defined time delay between some commands Setting parameters TimeMs integer Wait time in ms Range 0 to 10000 RST 0 Example SYSTem WAIT 10000 waits 10s before resetting the instrument RST Usage Setting only 7 16 TEST Subsystem The TEST system contains the commands for performing selftest rou...

Страница 605: ...YN 0 Response H12345678 7 17 TRIGger Subsystem The TRIGger system contains the commands for selecting the trigger source for the RF and LF sweep The trigger input connectors are configured in the SOURce INPut subsystem The trigger system of the R S SMF is a simplified implementation of the SCPI trigger system The TRIGger system differs from the SCPI system as follows No INITiate command the instru...

Страница 606: ...r hw LFVSweep SOURce 594 TRIGger hw LFVSweep IMMediate 594 TRIGger hw PSWeep SOURce 595 TRIGger hw PSWeep IMMediate 595 TRIGger hw SWEep SOURce 596 TRIGger hw SWEep IMMediate 597 TRIGger hw IMMediate 597 TRIGger hw FSWeep SOURce Source Sets the trigger source for the RF frequency sweep The names of the parameters correspond directly to the various settings under manual control SCPI uses other name...

Страница 607: ... is finished the next sweep is started A second trigger event stops the sweep at the current frequency a third trigger event starts the trigger at the start frequency and so on RST AUTO Example TRIG FSW SOUR EXT selects triggering with an external trigger Manual operation See Mode RF Frequency Sweep on page 162 TRIGger hw FSWeep IMMediate Immediately starts an RF frequency sweep cycle The command ...

Страница 608: ... of the various names is given in the Table 7 2 Parameters Source AUTO IMMediate SINGle BUS EXTernal EAUTo AUTO IMMediate The trigger is free running i e the trigger condition is fulfilled continuously As soon as one sweep is finished the next sweep is started SINGle BUS One complete sweep cycle is triggered by the GPIB commands SOURce hw LFOutput SWEep FREQuency EXECute or TRG The mode has to be ...

Страница 609: ...ource AUTO IMMediate SINGle BUS EXTernal AUTO IMMediate The trigger is free running i e the trigger condition is fulfilled continuously As soon as one sweep is finished the next sweep is started SINGle One complete sweep cycle is triggered by the GPIB bus com mands SOURce LFOutput SWEep VOLTage EXECute or TRG The mode has to be set to AUTO SOURce LFOutput SWEep VOLTage MODE AUTO EXTernal The sweep...

Страница 610: ... SINGle BUS One complete sweep cycle is triggered by the GPIB commands SOURce hw SWEep POWer EXECute TRIGger hw PSWeep IMMediate or TRG The mode has to be set to AUTO SOURce SWEep LEVel MODE AUTO EXTernal The sweep is triggered externally via the TRIGGER connector or the AUX connector EAUTo The sweep is triggered externally via the INST TRIG connector As soon as one sweep is finished the next swee...

Страница 611: ...he Table 7 2 Setting parameters Source AUTO IMMediate SINGle BUS EXTernal EAUTo AUTO IMMediate The trigger is free running i e the trigger condition is fulfilled continuously As soon as one sweep is finished the next sweep is started SINGle BUS One complete sweep cycle is triggered by the GPIB com mands SOURce SWEep POWer FREQuency EXEC TRIGger PSWeep FSWeep IMMediate or TRG If SOURce SWEep POWer ...

Страница 612: ... and therefore applies to sweep mode AUTO with sweep source SINGle Use the commands TRIG FSW LFFS PSW SWE SOUR SING and SOUR SWE FREQ POW MODE or SOUR LFO SWE FREQ MODE to set the respective sinlge sweep You can alterna tively use an IMMediate command instead of the respective SWEep FREQ POW EXECute command Example TRIG starts all active sweeps Usage Event Manual operation See Execute Single Sweep...

Страница 613: ...mands which determine angle values UNIT POWer Power Defines the default unit for power parameters This setting affects the GUI as well as all remote control commands that determine power values Parameters Power V DBUV DBM RST DBM Example UNIT POW V sets V as a default unit for all commands which determine power values UNIT Subsystem ...

Страница 614: ...ring shipment Insufficient protection against mechanical and electrostatic effects during shipment can damage the instrument When shipping an instrument use the original packaging If you do not have the original packaging use sufficient padding to prevent the instrument from moving around inside the box Pack the instrument in antistatic wrap to protect it from electrostatic charging Secure the ins...

Страница 615: ...oth 2 Check and clean the fans regularly to ensure that they always operate properly 3 Clean the touchscreen as follows a Apply a small amount of standard screen cleaner to a soft cloth b Wipe the screen gently with the moist but not wet cloth c If necessary remove any excess moisture with a dry soft cloth 8 2 Storing and Packing The storage temperature range of the instrument is given in the data...

Страница 616: ...with the command SYSTem ERRor If the error queue is empty 0 No error is returned The status reporting system is descri bed in detail in Chapter 6 5 Status Reporting System on page 339 Section Chapter 9 5 Resolving Network Connection Failures on page 607 pro vides recommended solutions for network connection errors and helps you to collect the information required for quick and efficient support 9 ...

Страница 617: ... takes the offset of any downstream attenuators amplifiers into consideration by way of calculation This means that with a level offset the level displayed in the header does not correspond to the level at the RF output but rather to the level at the output of the downstream instrument This allows the target level at the output of downstream instruments to be entered The signal generator changes t...

Страница 618: ...to manual operation LOC LLO For the direct operation the state has been changed from remote control to manual operation local state The LOCAL key was disabled with the command LLO local lockout With the next activating of the remote control mode the instrument cannot be switched to manual operation by the operator The status information changes to REM LLO The instrument can be switched to manual o...

Страница 619: ...cy accuracy is reached immediately If the power switch was switched off the reference oscillator needs some warm up time to reach its nominal frequency During this period of time the output frequency does not yet reach its final value either 9 2 Error Messages Messages indicate errors in the instrument They are displayed in the info line in differ ent colors depending on their importance and displ...

Страница 620: ...n all SCPI instruments Detailed information and an overview of all error messages as defined in SCPI standard can be found in the corresponding documentation The errors are assigned negative numbers The error text being entered into the error event queue or being displayed is printed in bold face on the left together with the error code Below the error text there is an explanation as to the respec...

Страница 621: ...ata are invalid and must be restored The adjustment data have to be generated again by an internal or external adjustment or to be loa ded into the instrument 200 Cannot access hard ware The data transmission to a module was unsuccessful The module is not installed not properly installed or missing 201 Hardware revision out of date A later version of certain parts of the instrument is necessary to...

Страница 622: ...ata The selected file contains data that is not valid for the file type The file extension determines the data that is valid for this file type If the file extension is changed the lists are no longer recognized and the data are therefore invalid Example the extension of a wave form file wv was changed to txt Check the file extension 9 5 Resolving Network Connection Failures Several issues may cau...

Страница 623: ...e shooting on page 601 In addition our customer support centers are there to assist you in solving any prob lems that you may encounter with your R S SMF We will find solutions more quickly and efficiently if you provide us with the information listed below The following dialog boxes in the Setup System menu provide useful informa tion Hardware Configuration hardware assemblies Software Options th...

Страница 624: ...on page 306 All other interfaces are described in Chapter 2 1 Front Panel Tour on page 16 and Chapter 2 2 Rear Panel Tour on page 24 For specifications refer to the data sheet A 1 GPIB Bus Interface Pin assignment Figure A 1 Pin assignment of GPIB bus interface Bus lines Data bus with 8 lines D0 to D7 The transmission is bit parallel and byte serial in the ASCII ISO code D0 is the least significan...

Страница 625: ...e of the connected devi ces is not ready for data transfer NDAC Not Data Accepted active LOW signals that the instrument connected is accepting the data on the data bus Interface Functions Instruments which can be controlled via GPIB bus can be equipped with different inter face functions The interface function for the R S SMF are listed in the following table Table A 1 GPIB bus interface function...

Страница 626: ... hw FREQuency MEASure 356 CALibration hw LEVel EXTern DATA 357 CALibration hw LEVel LOOPgain STATe 357 CALibration hw LEVel STATe 358 CALibration hw LEVel MEASure 357 CALibration hw ROSCillator DATA 358 DEVice PRESet 354 DIAGnostic INFO OTIMe 360 DIAGnostic INFO POCount 360 DIAGnostic hw BGINfo CATalog 359 DIAGnostic hw BGINfo 359 DISPlay ANNotation AMPLitude 361 DISPlay ANNotation FREQuency 361 D...

Страница 627: ...ory CATalog 376 MMEMory CDIRectory 377 MMEMory COPY 377 MMEMory DATA 378 MMEMory DCATalog LENGth 379 MMEMory DCATalog 379 MMEMory DELete 379 MMEMory LOAD STATe 380 MMEMory MDIRectory 381 MMEMory MOVE 381 MMEMory MSIS 381 MMEMory RDIRectory 381 MMEMory STORe STATe 382 OUTPut ALL STATe 382 OUTPut BLANk MODE 384 OUTPut BLANk POLarity 384 OUTPut BLANk WIDTh 385 OUTPut FPRoportional SCALe 385 OUTPut hw...

Страница 628: ...E AUTO STATe 417 SENSe POWer SWEep HCOPy FILE NAME AUTO FILE DAY STATe 415 SENSe POWer SWEep HCOPy FILE NAME AUTO FILE DAY 414 SENSe POWer SWEep HCOPy FILE NAME AUTO FILE MONTh STATe 415 SENSe POWer SWEep HCOPy FILE NAME AUTO FILE MONTh 415 SENSe POWer SWEep HCOPy FILE NAME AUTO FILE NUMBer 415 SENSe POWer SWEep HCOPy FILE NAME AUTO FILE PREFix 416 SENSe POWer SWEep HCOPy FILE NAME AUTO FILE PREFi...

Страница 629: ...POWer FILTer SONCe 398 SENSe ch POWer FILTer TYPE 399 SENSe ch POWer FREQuency 399 SENSe ch POWer LOGGing STATe 400 SENSe ch POWer OFFSet 400 SENSe ch POWer OFFSet STATe 400 SENSe ch POWer SOURce 401 SENSe ch POWer SWEep FREQuency SENSor OFFSet 403 SENSe ch POWer SWEep FREQuency SENSor OFFSet STATe 404 SENSe ch POWer SWEep FREQuency SENSor SRANge STARt 405 SENSe ch POWer SWEep FREQuency SENSor SRA...

Страница 630: ...Source 582 SYSTem COMMunicate GPIB SELF ADDRess 579 SYSTem COMMunicate HISLip RESource 582 SYSTem COMMunicate NETWork IPADdress 580 SYSTem COMMunicate NETWork IPADdress MODE 580 SYSTem COMMunicate NETWork MACaddress 581 SYSTem COMMunicate NETWork RESource 582 SYSTem COMMunicate NETWork RESTart 582 SYSTem COMMunicate NETWork STATus 581 SYSTem COMMunicate NETWork COMMon DOMain 579 SYSTem COMMunicate...

Страница 631: ... ch POWer SWEep FEED 438 TRACe ch POWer SWEep MEASurement POWer AVERage DISPlay ANNotation STATe 442 TRACe ch POWer SWEep MEASurement POWer AVERage 440 TRACe ch POWer SWEep MEASurement POWer HREFerence DISPlay ANNotation STATe 442 TRACe ch POWer SWEep MEASurement POWer HREFerence 440 TRACe ch POWer SWEep MEASurement POWer LREFerence DISPlay ANNotation STATe 442 TRACe ch POWer SWEep MEASurement POW...

Страница 632: ...ASurement TRANsition POSitive DURation DISPlay ANNotation STATe 443 TRACe ch POWer SWEep MEASurement TRANsition POSitive DURation 440 TRACe ch POWer SWEep MEASurement TRANsition POSitive OCCurrence DISPlay ANNotation STATe 443 TRACe ch POWer SWEep MEASurement TRANsition POSitive OCCurrence 440 TRACe ch POWer SWEep MEASurement TRANsition POSitive OVERshoot DISPlay ANNotation STATe 443 TRACe ch POWe...

Страница 633: ...put SWEep FREQuency MARKer ch FSTate 485 SOURce LFOutput SWEep FREQuency MARKer ch VSTate 486 SOURce LFOutput VOLTage MANual 501 SOURce LFOutput VOLTage MODE 502 SOURce LFOutput VOLTage STARt 502 SOURce LFOutput VOLTage STOP 503 SOURce LFOutput ch BANDwidth 479 SOURce LFOutput ch FREQuency 479 SOURce LFOutput ch SOURce 483 SOURce LFOutput ch VOLTage 501 SOURce LFOutput ch STATe 483 SOURce PM ch DE...

Страница 634: ...imal 458 SOURce hw CORRection DEXChange EXECute 458 SOURce hw CORRection DEXChange MODE 459 SOURce hw CORRection DEXChange SELect 459 SOURce hw CORRection MEASure 460 SOURce hw CORRection PMETer TYPE 460 SOURce hw CORRection VALue 461 SOURce hw CORRection ZERoing STATe 461 SOURce hw CORRection STATe 461 SOURce hw DM ASK DEPTh 462 SOURce hw DM ASK SOURce 462 SOURce hw DM ASK STATe 463 SOURce hw DM ...

Страница 635: ...ce hw LFOutput SWEep FREQuency STEP LINear 490 SOURce hw LFOutput ch SHAPe 497 SOURce hw LFOutput ch SHAPe PULSe DCYCle 498 SOURce hw LFOutput ch SHAPe PULSe PERiod 498 SOURce hw LFOutput ch SHAPe PULSe WIDTh 498 SOURce hw LFOutput ch SHAPe TRAPeze FALL 499 SOURce hw LFOutput ch SHAPe TRAPeze HIGH 499 SOURce hw LFOutput ch SHAPe TRAPeze PERiod 499 SOURce hw LFOutput ch SHAPe TRAPeze RISE 500 SOURc...

Страница 636: ...OWer ALC PMETer TYPE 523 SOURce hw POWer ALC REFerence 523 SOURce hw POWer ALC SONCe 524 SOURce hw POWer ALC SOURce 524 SOURce hw POWer ALC STATe 524 SOURce hw POWer ATTenuation RFOFf MODE 525 SOURce hw POWer EMF STATe 525 SOURce hw POWer LIMit AMPLitude 527 SOURce hw POWer MANual 528 SOURce hw POWer MODE 529 SOURce hw POWer POWer 529 SOURce hw POWer RESolution 529 SOURce hw POWer SPC CRANge 530 S...

Страница 637: ...TRAin REPetition 544 SOURce hw PULM TRAin REPetition POINts 544 SOURce hw PULM TRAin SELect 545 SOURce hw PULM TRIGger EXTernal GATE POLarity 545 SOURce hw PULM TRIGger EXTernal IMPedance 545 SOURce hw PULM TRIGger EXTernal LEVel 546 SOURce hw PULM TRIGger EXTernal SLOPe 546 SOURce hw PULM TRIGger MODE 546 SOURce hw PULM WIDTh 551 SOURce hw SWEep MARKer OUTPut POLarity 564 SOURce hw SWEep POWer AM...

Страница 638: ...p FREQuency POINts 560 SOURce hw SWEep FREQuency RETRace 560 SOURce hw SWEep FREQuency RUNNing 561 SOURce hw SWEep FREQuency SHAPe 561 SOURce hw SWEep FREQuency SPACing 561 SOURce hw SWEep FREQuency STEP LOGarithmic 563 SOURce hw SWEep FREQuency STEP LINear 562 SOURce hw SWEep FREQuency TIME 564 CLS 350 ESE 350 ESR 350 IDN 351 IST 351 OPC 351 OPT 351 PRE 352 PSC 352 RCL 352 RST 352 SAV 353 SRE 353...

Страница 639: ...ust Synthesis Extension 103 Adjustment active Reference oscillator 159 Adjustment Data 183 Adjustment frequency Reference oscillator 159 Adjustments All 103 ALC automatic level control 192 ALC Auto 603 ALC On 192 603 ALC S H 603 ALC Table 603 All trigger events Power analysis 220 AM Source 257 AM Depth 258 AM Sensitivity 258 AM State 257 Amplitude Annotation setup security 130 LF Frequency Marker ...

Страница 640: ...olumn Separator Import Export Pulse Train data 303 Column Separator Import Export User Correction data 249 Comma 334 Command sequence recommendation 347 Remote 354 Commands 308 Brackets 334 Colon 334 Comma 334 Command line structure 335 Common 308 Double dagger 334 GBIP addressed 314 GBIP universal 313 Instrument control 308 Overlapping 337 Question mark 334 Quotation mark 334 SCPI confirmed 308 S...

Страница 641: ...ttings 33 100 355 Default values Remote 352 Define markers Power analysis 240 Define reference Trace power analysis 215 Delay Double pulse 297 Pulse generator 296 Delay time NRP Z level control 206 NRP Z power control 530 Delete hardcopy files Power analysis 242 Delete instrument settings 144 379 Delta Phase 155 Depth ASK 266 462 Destination Hardcopy 135 Destination Import Export Pulse Train data ...

Страница 642: ...r ESE 344 Remote 350 Event status register ESR 344 Remote 350 Exclude Frequency 142 Exclude Level 142 Execute Power analysis 220 Execute Single List Mode 172 Execute single sweep Frequency sweep 165 Execute Single Sweep Level Sweep 188 LF Level Sweep 492 LF Sweep 291 Execute Single Sweep LF Sweep 280 Expiration date of option 106 Export Deactivation Response 107 EXT REF 602 Ext trigger input slope...

Страница 643: ...n 273 Pulse modulation 297 Gateway 116 GET 314 Getting started 57 Goto local Remote channel settings 121 GPIB 121 bus address 120 Characteristics 312 interface messages 313 Remote control interface 306 GPIB address 314 Grid Power analysis 222 GTL 314 H Hardcopy Destination 135 Hardcopy File setup 136 Hardcopy device size Power analysis 242 Hardcopy dialog File 135 Hardcopy file name Power analysis...

Страница 644: ...i 129 enable 129 FTP 129 HTTP 129 LAN over SCPI 129 SMB Samba 129 SSH 129 VNC 129 LAN Interface Services 128 Setup 128 LAN Status LXI 123 Language Emulation 122 Language Keyboard 372 Layout Keyboard 118 Learn List Mode Data 173 Level 180 limit 182 206 Power sensors 198 RF output 181 Level RF Level Marker 566 Level Step width 183 Level Avg Power sensors 198 Level control 192 Level display 75 Level ...

Страница 645: ...lysis 229 Marker LF Frequency Marker 285 Power analysis 212 240 RF frequency marker 169 Marker RF Level Marker 191 Marker and pulse data indication Power analysis 211 Marker indication Power analysis 207 Marker Polarity 118 170 191 Marker view Power analysis 222 Mathematics Trace power analysis 216 Max Power analysis 218 MAX 332 Max separate frequency Power analysis 229 Maximal deviation Chirp mod...

Страница 646: ...k power 206 NRP Z power control catch range 530 delay time 530 RF level limit 182 206 sensor 531 state 531 target level 531 use peak power 530 use SParameter 202 206 NRP Z power viewer use SParameter 202 206 NTRansition 342 Number of licenses 106 Numeric parameters 332 Numeric values Special 332 O Off time Pulse Train 301 Offset RF signal 151 Offset Level 182 Old password Setup security 128 Old us...

Страница 647: ...ity 199 Filter 200 Frequency 200 Level 198 Level Avg 198 Level offset 200 NRP Z level control 203 Permanent display 199 Power viewer 197 Source 200 State 198 State level offset 200 Type 198 Unit 198 Use default aperture time 202 zero 199 205 Power On Count 104 Power On Counter 360 Power On State 183 PPC 314 PPE 340 PPU 313 Preset 33 Preset instrument settings 100 Preset instrument settings 33 355 ...

Страница 648: ...Source 158 synchronization bandwidth 158 Reference Voltage External Level Control 523 Reference Voltage External Level Control 195 Registers 340 Release notes 14 REM LLO 603 Remote Bluetooth 120 RS232 120 REMOTE 602 Remote access 40 Remote channel GPIB address 120 Remote channel settings 120 Goto local 121 GPIB resource VISA resource string 121 HISLIP resource VISA resource string 121 Network reso...

Страница 649: ...382 Save intermediate 353 Save options Power analysis 242 Save to Ref Trace power analysis 215 Scan State Amplitude Modulation 258 SCPI LAN Services 129 Parameters 331 Syntax 329 Version 307 SCPI error messages 605 SCPI confirmed commands 308 SCPI remote trace LXI 55 Screen Saver 117 SDC 314 Search Once ALC 194 Security Accept settings 132 Annotation amplitude setup 130 Annotation frequency setup ...

Страница 650: ...rigger input 299 Slope pulse trigger input 273 SMB Samba LAN Services 129 SMZ Info FW Version 109 MAX Freq 109 Min Freq 109 Revision 109 Serial number 109 Type 109 Software options 105 Source AM 257 External Level Control 194 524 FM 260 Level Sweep Trigger 185 LF output 287 483 LF sweep trigger 279 LF Sweep Trigger 289 List Mode 172 Power sensors 200 Pulse modulation 268 ɸM 263 Reference oscillato...

Страница 651: ...xes 330 Support 608 Sweep LF start frequency 292 LF stop frequency 292 Retrace LF frequency 283 Retrace LF level 293 Retrace RF frequency 166 Retrace RF level 188 RF frequency sweep 162 Start Level 188 Stop Level 188 Trigger 165 188 291 Sweep Center frequency 165 Sweep LF start frequency 282 Sweep LF stop frequency 282 Sweep Trigger 280 Sweep shape LF Level Sweep 292 RF Level Sweep 188 Sweep shape...

Страница 652: ... U UCorr 604 Ultr VNC 43 Unit Power sensors 198 Units Input 20 UNIX controller 43 UP 332 Update Setup System 110 Update sensor 107 USB Adapter TS USB1 120 Interfaces 311 Remote control interface 306 USB Storage Setup 130 Use as X scale Power analysis 229 Use default aperture time Power sensors 202 Use ext level correction data 103 Use ext Loop Gain Correction Data 357 Use ext loop gain correction ...

Страница 653: ...e papers 14 White space 334 Width Double pulse 296 Pulse generator 296 Workgroup Network settings 115 Write nonvolatile memory Setup 130 Y y axis Power analysis 221 Z Zero Power sensors 199 205 Zero Power Sensors 435 Zero power sensor Power analysis 227 Zeroconf IP address 607 Zoom Pulse Train 300 Zoom Position Pulse Train 300 ...

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