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Rohde & Schwarz SMC100A, Руководство по эксплуатации

Рохде и Шварц SMC100A - это высокоточный генератор сигналов, специально разработанный для широкого спектра приложений. Для правильной настройки и использования устройства необходимо ознакомиться с Операционным руководством, которое можно загрузить бесплатно с manualshive.com. Руководство содержит все необходимые инструкции для пользователя.

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Remote Control Commands

R&S

®

SMC100A

245

Operating Manual 1411.4060.32 ─ 04

7.12.2 SOURce:CORRection Subsystem

The output level is corrected in the 

CORRection

 subsystem. Correction is performed by

user-defined table values being added to the output level for the respective RF frequency.
In the R&S SMC, this subsystem is used to select, transfer and activate user correction
tables.

Each list is stored as a file. The name of the user correction file can be freely selected.
The file extension 

*.uco

 is assigned automatically and cannot be changed.

The files can be stored in a freely selectable directory and opened from there. The default
directory is set using command 

​

:

​

MMEMory:

​

CDIRectory

​

 on page 227. In the case of

files which are stored in the default directory, only the file name has to be specified in
commands. Otherwise, the complete absolute path has to be specified with every com-
mand. The extension can be omitted in any case.

In the following command examples, the files are stored in the default directory.

The amplitude can also be linearized automatically by means of a R&S NRP power sen-
sor connected 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

​

...........................................................................245

[:

​

SOURce<hw>]:

​

CORRection:

​

CSET:

​

DATA:

​

FREQuency

​

....................................................246

[:

​

SOURce<hw>]:

​

CORRection:

​

CSET:

​

DATA:

​

FREQuency:

​

POINts

​

.........................................246

[:

​

SOURce<hw>]:

​

CORRection:

​

CSET:

​

DATA:

​

POWer

​

...........................................................247

[:

​

SOURce<hw>]:

​

CORRection:

​

CSET:

​

DATA:

​

POWer:

​

POINts

​

................................................247

[:

​

SOURce<hw>]:

​

CORRection:

​

CSET:

​

DATA[:

​

SENSor<ch>][:

​

POWer]:

​

SONCe

​

........................247

[:

​

SOURce]:

​

CORRection:

​

CSET:

​

DELete

​

............................................................................248

[:

​

SOURce<hw>]:

​

CORRection:

​

DEXChange:

​

AFILe:

​

CATalog

​

................................................248

[:

​

SOURce<hw>]:

​

CORRection:

​

DEXChange:

​

AFILe:

​

EXTension

​

.............................................249

[:

​

SOURce<hw>]:

​

CORRection:

​

DEXChange:

​

AFILe:

​

SELect

​

..................................................249

[:

​

SOURce<hw>]:

​

CORRection:

​

DEXChange:

​

AFILe:

​

SEParator:

​

COLumn

​

................................249

[:

​

SOURce<hw>]:

​

CORRection:

​

DEXChange:

​

AFILe:

​

SEParator:

​

DECimal

​

................................250

[:

​

SOURce<hw>]:

​

CORRection:

​

DEXChange:

​

EXECute

​

.........................................................250

[:

​

SOURce<hw>]:

​

CORRection:

​

DEXChange:

​

MODE

​

............................................................251

[:

​

SOURce<hw>]:

​

CORRection:

​

DEXChange:

​

SELect

​

............................................................251

[:

​

SOURce<hw>]:

​

CORRection:

​

CSET[:

​

SELect]

​

...................................................................252

[:

​

SOURce<hw>]:

​

CORRection[:

​

STATe]

​

.............................................................................252

[:

​

SOURce<hw>]:

​

CORRection:

​

VALue

​

...............................................................................252

[:SOURce]:CORRection:CSET:CATalog?

The command requests a list of user correction tables. The individual lists are separated
by commas.

 

SOURce Subsystem

Содержание SMC100A

Страница 1: ...R S SMC100A Signal Generator Operating Manual Operating Manual XÊP 1411 4060 32 04 Test Measurement ...

Страница 2: ...ric Young eay cryptsoft com and software written by Tim Hudson tjh cryptsoft com LINUX is a trademark of Linus Torvalds Rohde Schwarz would like to thank the open source community for their valuable contribution to embedded computing 2011 Rohde Schwarz GmbH Co KG Muehldorfstr 15 81671 Munich Germany Phone 49 89 41 29 0 Fax 49 89 41 29 12 164 E mail info rohde schwarz com Internet http www rohde sc...

Страница 3: ...f 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 a basic knowledge of English It is therefore essential that only skilled and specialized staff or thoroughly trained personnel with the...

Страница 4: ...he positions specified by the manufacturer without the product s ventilation being obstructed If the manufacturer s specifications are not observed this can result in electric shock fire and or serious personal injury or death Applicable local or national safety regulations and rules for the prevention of accidents must be observed in all work performed 1 Unless otherwise specified the following r...

Страница 5: ...at it is in proper operating condition By taking appropriate safety measures and carefully laying the power cable you can ensure that the cable will not be damaged and that no one can be hurt by for example tripping over the cable or suffering an electric shock 6 The product may be operated only from TN TT supply networks fused with max 16 A higher fuse only after consulting with the Rohde Schwarz...

Страница 6: ... damage may occur It is the responsibility of the employer operator to select suitable personnel for operating the products 2 Before you move or transport the product read and observe the section titled Transport 3 As with all industrially manufactured goods the use of substances that induce an allergic reaction allergens such as nickel cannot be generally excluded If you develop an allergic react...

Страница 7: ... sunlight must be avoided Keep cells and batteries clean and dry Clean soiled connectors using a dry clean cloth 3 Cells or batteries must not be short circuited Cells or batteries must not be stored in a box or in a drawer where they can short circuit each other or where they can be short circuited by other conductive materials Cells and batteries must not be removed from their original packaging...

Страница 8: ... regulations must be observed Also observe the relevant safety instructions in the product documentation The improper disposal of hazardous substances or fuels can cause health problems and lead to environmental damage Informaciones elementales de seguridad Es imprescindible leer y observar las siguientes instrucciones e informaciones de seguridad El principio del grupo de empresas Rohde Schwarz c...

Страница 9: ...s imprescindible leer detalladamente y comprender por completo las siguientes informaciones de seguridad antes de usar el producto y respetarlas durante el uso del producto Deberán tenerse en cuenta todas las demás informaciones de seguridad como p ej las referentes a la protección de personas que encontrarán en el capítulo correspondiente de la documentación del producto y que también son de obli...

Страница 10: ...por el fabricante respecto a los estados operativos y posiciones de funcionamiento sin que se obstruya la ventilación Si no se siguen las indicaciones del fabricante pueden producirse choques eléctricos incendios y o lesiones graves con posible consecuencia de muerte En todos los trabajos deberán ser tenidas en cuenta las normas nacionales y locales de seguridad del trabajo y de prevención de acci...

Страница 11: ...red eléctrica Si los productos sin interruptor están integrados en bastidores o instalaciones se deberá colocar el interruptor en el nivel de la instalación 5 No utilice nunca el producto si está dañado el cable de conexión a red Compruebe regularmente el correcto estado de los cables de conexión a red Asegúrese mediante las medidas de protección y de instalación adecuadas de que el cable de conex...

Страница 12: ...o ya se hayan producido condensaciones sobre el producto o en el interior de éste como p ej al desplazarlo de un lugar frío a otro caliente La entrada de agua aumenta el riesgo de choque eléctrico 18 Antes de la limpieza desconecte por completo el producto de la alimentación de tensión p ej red de alimentación o batería Realice la limpieza de los aparatos con un paño suave que no se deshilache No ...

Страница 13: ...hwarz Si se reponen partes con importancia para los aspectos de seguridad p ej el enchufe los transformadores o los fusibles solamente podrán ser sustituidos por partes originales Después de cada cambio de partes relevantes para la seguridad deberá realizarse un control de seguridad control a primera vista control del conductor de protección medición de resistencia de aislamiento medición de la co...

Страница 14: ...s personales o daños en el producto siga las instrucciones de seguridad del fabricante del medio de transporte o elevación utilizado 3 Si se utiliza el producto dentro de un vehículo recae de manera exclusiva en el conductor la responsabilidad de conducir el vehículo de manera segura y adecuada El fabricante no asumirá ninguna responsabilidad por accidentes o colisiones No utilice nunca el product...

Страница 15: ... only be disposed of at a Rohde Schwarz service center or at a suitable depot Normas de Seguridad para Baterías Según BattV Este equipo lleva una batería que contiene sustancias per judiciales que no se debe desechar en los contenedores de basura domésticos Después de la vida útil la batería sólo se podrá eliminar en un centro de servicio de Rohde Schwarz o en un depósito apropiado Consignes de sé...

Страница 16: ...ance with EN 50419 Once the lifetime of a product has ended this product must not be disposed of in the standard domestic refuse Even disposal via the municipal collection points for waste electrical and electronic equipment is not permitted Rohde Schwarz GmbH Co KG has developed a disposal concept for the environmental friendly disposal or recycling of waste material and fully assumes its obligat...

Страница 17: ...ment system stan dards The Rohde Schwarz quality management system is certified according to standards such as ISO9001 and ISO14001 Environmental commitment Energy efficient products J J Continuous improvement in J J environmental sustainability ISO14001 certified environmental J J management system Cher client Vous avez choisi d acheter un pro duit Rohde Schwarz Vous disposez donc d un produit fa...

Страница 18: ...ation of the laws of the Member States relating to electrical equipment for use within defined voltage limits 2006 95 EC relating to electromagnetic compatibility 2004 108 EC Conformity is proven by compliance with the following standards EN 61010 1 2001 EN 61326 1 2006 EN 61326 2 1 2006 EN 55011 2007 A2 2007 Class B EN 61000 3 2 2006 EN 61000 3 3 1995 A1 2001 A2 2005 For the assessment of electro...

Страница 19: ...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 20: ...7 Front Panel Connectors 18 2 2 Rear Panel Tour 19 2 2 1 Description of the Connectors 19 2 3 Putting into Operation 21 2 3 1 Unpacking and Checking the Instrument 22 2 3 2 Placing or Mounting the Instrument 23 2 3 3 Connecting the Instrument to the AC Supply 24 2 3 4 Starting the Instrument 24 2 3 4 1 Standby and Ready state 25 2 3 4 2 Start Display and Booting 25 2 3 4 3 Function Check 25 2 3 4 ...

Страница 21: ...ual Operation 51 4 1 Key Features 51 4 2 Display 54 4 2 1 Settings Displayed in the Header Section 54 4 2 2 Status Information and Messages 55 4 2 2 1 Status Information 55 4 2 2 2 Messages 55 4 2 2 3 Volatile messages 55 4 2 2 4 Permanent Messages 56 4 2 3 Info Window 56 4 2 4 Block Diagram 57 4 2 4 1 Function Blocks in the Block Diagram 57 4 2 4 2 Signal Flow and Input Output Symbols in the Bloc...

Страница 22: ... of Instrument Functions 75 5 2 General Instrument Settings 76 5 2 1 Overview of General Instrument Settings 76 5 2 2 Default Instrument Settings Preset Key 76 5 2 3 General Configuration of Instrument Setup Key 77 5 2 3 1 Internal Adjustments 78 5 2 3 2 Hardware Config 79 5 2 3 3 Software Options 80 5 2 3 4 Manage License Keys 81 5 2 3 5 Gui Update 83 5 2 3 6 NRP Z Info Update 83 5 2 3 7 Selftest...

Страница 23: ... 1 Overview of RF Signal 106 5 3 1 1 RF Output 107 5 3 1 2 Overview of the RF Signal Settings 107 5 3 2 RF Frequency Settings 108 5 3 2 1 RF Frequency vs RF Output Frequency 108 5 3 2 2 Configuring RF Frequency 109 5 3 2 3 Frequency Menu 109 5 3 3 Phase Settings 111 5 3 3 1 Phase Menu 111 5 3 4 Reference Oscillator 111 5 3 4 1 Reference Oscillator Dialog 112 5 3 5 NRP Z Power Viewer 113 5 3 5 1 NR...

Страница 24: ...Frequency Modulation Settings 149 5 4 4 Phase Modulation PhiM 151 5 4 4 1 Phase Modulation Menu 152 5 4 5 Pulse Modulation PM 153 5 4 5 1 Pulse Modulation Settings 154 5 5 LF Generator and LF Output Mod Gen 155 5 5 1 LF Generator Overview 155 5 5 2 LF Frequency Sweep 155 5 5 3 LF Output 161 5 5 3 1 LF Output Menu 161 5 5 4 Pulse Generator 161 5 5 4 1 Pulse Generator Settings 162 6 Remote Control B...

Страница 25: ...cific Commands 185 6 3 3 SCPI Parameters 187 6 3 4 Overview of Syntax Elements 190 6 3 5 Structure of a command line 191 6 3 6 Responses to Queries 192 6 4 Command Sequence and Synchronization 192 6 4 1 Preventing Overlapping Execution 193 6 5 Status Reporting System 195 6 5 1 Hierarchy of status registers 195 6 5 2 Structure of a SCPI Status Register 197 6 5 3 Contents of the Status Registers 198...

Страница 26: ...ions for User Files 225 7 9 3 Examples 225 7 9 4 Remote Control Commands 226 7 10 OUTPut Subsystem 232 7 11 SENSe READ and INITiate Subsystems 234 7 12 SOURce Subsystem 242 7 12 1 SOURce AM Subsystem 243 7 12 2 SOURce CORRection Subsystem 245 7 12 3 SOURce FM Subsystem 253 7 12 4 SOURce FREQuency Subsystem 255 7 12 5 SOURce INPut Subsystem 262 7 12 6 SOURce LFOutput Subsystem 262 7 12 7 SOURce MOD...

Страница 27: ... Status Information 325 9 1 1 Status information displayed between the frequency and level fields 325 9 1 2 Status information displayed to the left of the Info line 326 9 1 3 Status information displayed in the Info line 327 9 2 Error Messages 328 9 2 1 Volatile messages 328 9 2 2 Permanent messages 328 9 3 SCPI Error Messages 328 9 4 Device Specific Error Messages 329 A Hardware Interfaces 331 A...

Страница 28: ... The manual includes also general information e g Safety Instructions Operating Manual The Operating Manual is a supplement to the Quick Start Guide The manual is available in PDF format in printable form on the Documentation CD ROM delivered with the instrument In the Operating Manual all instrument functions are described in detail Fur thermore it provides an introduction to remote control and a...

Страница 29: ...umentation Convention Description Graphical user interface elements All names of graphical user interface elements on the screen such as dialog boxes menus options but tons and softkeys are enclosed by quotation marks KEYS Key names are written in capital letters File names commands program code File names commands coding samples and screen output are distinguished by their font Input Input to be ...

Страница 30: ... of this manual provides an overview of the generator functions and introduces the operating concept Detailed operating instruc tions and an overview of menus follow in chapter 4 Manual Operation on page 51 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 description of the hardware...

Страница 31: ...nt Setup Key on page 77 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 the bottom left corner of the front panel The ON STANDBY key toggles the instrument between standby and ready state indi cated by the standby LEDs The standby LEDs indicate the instrument states as follow the green LED left is on when the instr...

Страница 32: ...he foreground anytime with the DIAGRAM key For detailed information see chapter 4 2 Display on page 54 2 1 4 Setup Keys The keys to the right of the display set parameters select views and control the windows 2 1 4 1 Keys for Setting Paramters These keys provide direct access to the settings in the header of the instrument for fast setting the RF signal For more information refer to chapter Instru...

Страница 33: ...enu or to the previously highlighted block in the block diagram if no menu is active MOD ON OFF Switches the modulations on and off MOD OFF is displayed in the info line of the header next to the Level field RF ON OFF Switches the RF signal on and off RF OFF is displayed in the header next to the Frequency field 2 1 5 Keypad for data entry The keys in the data entry keypad are used to enter alphan...

Страница 34: ...ies For other entries this key can be used instead of the default unit key The new value is accepted Confirms OK and 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 l...

Страница 35: ...anumeric edit dialog box move the cursor forward and back In a list table window or dialog box scroll horizontally 2 1 7 Front Panel Connectors The RF and LF output connectors and a connector for external modulation signals are located on the front panel MOD EXT Input for external modulation signals LF Output for internal LF modulation generator signal See also data sheet and chapter 5 5 1 LF Gene...

Страница 36: ...ts itself to the correct range for the applied voltage range see type label There is no need to set the voltage manually or change fuses The power switch can be set to two positions 0 The instrument is disconnected from the mains I The instrument is power supplied It is either ready for operation STANDBY or in operating mode depending on the position of the ON STANDBY switch on the instru ment fro...

Страница 37: ...e signal or input of external trigger gate signal for internal pulse generator See also chapter 5 4 5 Pulse Modulation PM on page 153 INST TRIG Input for external trigger for sweeps See also chapter 5 3 9 1 Overview on page 133 REF OUT Output of internal reference signal See also chapter 5 3 4 Reference Oscillator on page 111 REF IN Input for external reference signal See also chapter 5 3 4 Refere...

Страница 38: ...en setting up the R S SMC for the first time Risk of injury and instrument damage The instrument must be used in an appropriate manner to prevent electric shock fire personal injury or damage Do not open the instrument casing Read and observe the Basic Safety Instructions at the beginning of this manual or on the documentation CD ROM in addition to the safety instructions in the following sections...

Страница 39: ...or details refer to the safety instructions at the beginning of this manual EMI impact on measurement results Electromagnetic interference EMI can affect the measurement results To avoid any impact make sure that the following conditions are met Use suitable double shielded cables Do not use USB connecting cables exceeding 1 m in length Use only USB devices that remain within the permissible EMI l...

Страница 40: ...he Instrument The R S SMC is designed for use under laboratory conditions either on a bench top or in a rack using a rack adapter kit order number see data sheet Bench Top Operation If the R S SMC is operated on a bench top the surface should be flat The instrument can be used in horizontal position standing on its feet or with the support feet on the bottom extended Risk of injury at the operatin...

Страница 41: ...e instrument to the AC power source using the AC power cable delivered 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 4 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 ins...

Страница 42: ...ted regularly the instrument 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 cur rent setup is not anymore relevant To customize the start settings use ...

Страница 43: ...cible initial basis for all other settings However 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...

Страница 44: ... 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 power press the ma...

Страница 45: ...pansions that are possible with the R S SMC The following list shows various USB devices that can be useful Memory stick for easy transfer of data to from a computer e g firmware updates CD ROM drives for easy installation of firmware applications Keyboard or mouse to simplify the entry of data comments file names etc Power sensors e g of the NRP Zxy family Installing USB devices is easy under Lin...

Страница 46: ...instrument The use and installation of additional software may impair instrument function Thus run only programs that Rohde Schwarz has tested for compatibility with the instrument software The drivers and programs used 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 conf...

Страница 47: ... 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 SMC is equipped with a network interface and can be connected to an Ethernet LAN local area network Provided the appropriate rights have been assigned by the network administrator and the Linu...

Страница 48: ... and the computer see chapter 2 6 2 Assigning the IP Address on page 31 The R S SMC uses the IP addresses 192 168 xxx yyy for this purposes where xxx and yyy may take values between 1 254 the subnet mask is always 255 255 255 0 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 T...

Страница 49: ... IP address for example 192 168 0 1 The IP address consists of four number blocks separated by dots Every block contains 3 numbers in maximum 4 Select the Subnet Mask and enter the subnet mask for example 255 255 255 0 The subnet mask consists of four number blocks separated by dots Every block contains 3 numbers in maximum Assigning the IP address manually on a PC 1 Obtain the IP address and subn...

Страница 50: ...via a network link This allows convenient operation of the instrument from the desktop although the instrument is integrated in a rack somewhere else For an overview of the instrument s operating concept and the different ways to control and operate the instrument see chapter 3 1 Brief Introduction to the Instrument s Con cept on page 41 There are different ways to establish a remote access connec...

Страница 51: ...m This section gives an information on how to use the Web browser for remote access how to install the applications for remote access and how to establish the connection between the instrument and an external computer with Windows operating system Remote access via an external computer with Linux Unix operating system is performed accord ingly Default password Remote access and file access require...

Страница 52: ...ess and control the instrument from a remote computer through a LAN connection The program is included in operating sys tem Linux Unix It is available as a free of charge download on the internet for operating system Window XP http www uvnc com download index html and on the instrument s CD ROM Risk of Unauthorized Access If the VNC application is enabled on the instrument any user in the network ...

Страница 53: ... operating system see Setting up the VNC connection on the Windows remote computer on page 39 Enabled Direct Control The direct control of the instrument is not disabled and the instrument can be controlled from the front panel and via the remote computer alternately Installing the Ultr VNC application 1 Download the program from the internet and copy it to a directory that can be accessed 2 On th...

Страница 54: ...the Additional Task Panel enable all entries A successful installation is indicated by a message At the same time a warning is displayed stating that a password must be set 4 Select OK The Default Local System Properties panel opens Remote Access via an External Controller ...

Страница 55: ... VNC program form internet and follow the installation instruc tions Only the program component VNC Viewer is required Note The VNC Viewer program is included in the download for the installation of the Ultr VNC program on the signal generator if Full installation was selected in the Select Component panel In this case the program ultr vncviewer exe can be copied to the Windows PC 2 Install VNC Vi...

Страница 56: ...Setting up the VNC connection on the Windows remote computer 1 Start VNC Viewer program component on the PC select VNC Server and enter IP address of the instrument 2 To initialize the connection select Connect A message requesting the password appears 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 establishe...

Страница 57: ...al Windows PC close the VNC Viewer program The connection is terminated The color of the VNC icon in the status bar of the instrument changes A message on the external PC indicates the disconnection Disabling Remote Access via Ultr VNC The VNC connection can be disabled by removing the program on the instrument or by deactivating the VNC Server service 1 Remove the VNC program a Press the Windows ...

Страница 58: ... panel Peripherals such as mouse or keyboard can be connected but are not essential The R S SMC 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 the us...

Страница 59: ...s displayed when the INFO CTRL I key is pressed Additional information on entries can be reques ted from the help system The history function permits display of all messages Assistants simplify the completion of tables After data entry in the assistant the table is modified only after the Accept button has been pressed Pressing the Accept button also stores the assistant data For an introduction i...

Страница 60: ...rity i e signals with high quality The internal LF generator is used as a modulation source and permits generation of analog modulated signals A signal can be amplitude AM frequency FM phase PhiM or pulse PM modulated With its adjustable frequency range from 9 kHz up to 3 2 GHz the generator is especially designed for medium scale RF generation Various fields of applications are covered e g in lab...

Страница 61: ... respect to the sweep cycle mode continuous individual and step by step and triggering mode automatic internal and external In the Mod Gen block the LF sweep is configured Frequency and level sweep settings are accessed via the RF block The status display in the block shows whether LF generator and or a sweep are active The selected internal LF generator and or noise source are switched on or off ...

Страница 62: ...e instrument provides the RF signal An external trigger gate signal for sweeps is input via the INST TRIG connector at the rear of the instrument Note Frequency and level are set fast with the aid of the FREQ and LEVEL keys Use the TOGGLE ON OFF key to switch the RF output on or off 3 4 Example of Setup This section provides an example on how to configure the instrument for generating of an amplit...

Страница 63: ...inally select State and press the rotary knob to switch on the AM modulation f Press the DIAGRAM key to display the complete block diagram To indicate the active state the Modulation block is displayed in blue The RF is not yet active which means that no RF signal is output 3 Set frequency and level and activate RF signal a Press the FREQ key to activate the editing mode for frequency entry The Fr...

Страница 64: ...e RF output Generation of an RF Frequency Sweep Signal In the example an RF frequency sweep is configured Proceed as follow 1 Activate default preset state Press the PRESET key to set a defined instrument state 2 Configure and activate RF frequency sweep a Turn the rotary knob and select the RF block b Press the rotary knob to open the dialog where the RF frequency sweep can be selected Example of...

Страница 65: ...otary knob to open the selection list and select Single e Press the rotary knob to apply the selection For triggering the Execute Single Sweep and Reset Sweep buttons are dis played f Finally select State and press the rotary knob to switch on the RF frequency sweep g Press the DIAGRAM key to display the complete block diagram The RF is not yet active which means that no RF signal is output 3 Acti...

Страница 66: ...cy sweep a Press the WINBAR key to switch to the RF Frequency Sweep dialog Turn the rotary knob to select the Execute Single Sweep button Press the rotary knob to trigger start the frequency sweep A linear single sweep signal is now present at the RF output starting at 100 MHz The sweep is processed in 1 MHz steps with dwell time of 10 ms per step up to the stop frequency of 500 MHz The sweep star...

Страница 67: ......

Страница 68: ...erated signal and of the current instrument state Numerous online help func tions 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 of the arrow keys and the associated set...

Страница 69: ...as the directories under Windows The function blocks correspond to the first directory level the menus to subdirectories Operation corresponds to the Windows concept To offer the user a familiar environment operation is very similar to operation of Windows user interfaces All menus and tables are made up of known elements such as selection lists check boxes and entry fields A blue frame indicates ...

Страница 70: ...s the complete menu tree of the instrument the SETUP CTRL E key which opens the menus for general instrument settings or the FILE CTRL S key which opens the menu for file management Help functions for user support Numerous help functions support the user in signal configuration Value ranges The valid setting range is displayed for each numeric parameter This requires a short wait after activation ...

Страница 71: ...nbar with labelled softkeys for menu display The block diagram in the figure below shows a fully equipped instrument Fig 4 1 Block diagram of a fully equipped R S Signal Generator The R S SMC supports a multi language user interface that can be set in the Setup Display Settings dialog see GUI Language on page 88 4 2 1 Settings Displayed in the Header Section Frequency level settings and a few stat...

Страница 72: ...f all status infor mation and messages as well as instructions for error elimination 4 2 2 1 Status Information The status information gives the user an overview of the main operating states 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 o...

Страница 73: ...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 messages that have occurre...

Страница 74: ...uts used Signal generation can be completely operated from the block diagram The highlighted function block can be directly switched on and off with the TOGGLE ON OFF CTRL T key Pressing the Enter opens the associated setting menu Fig 4 2 Block diagram of the R S SMC 4 2 4 1 Function Blocks in the Block Diagram Each block represents a function of signal generation The function is indicated in the ...

Страница 75: ...ey toggles between the enlarged and normal sized menus Working with menus and dialog boxes is described in chapter 4 3 Accessing Dia logs on page 59 the setting of parameters in chapter 4 4 Setting Parame ters on page 60 The menus are in Windows format The menus differ in details depending on their function but they consist of the same main elements Each menu consists of a menu header and one or m...

Страница 76: ...header section Press the DIAGRAM key twice to enlarge the indication of the header section Tip Use the REARR key to toggle between the enlarged and normal sized dialogs Accessing the menu tree Press the MENU CTRL M key to open the complete menu tree Calling the File or Setup dialog Use the SETUP CTRL E key to open the Menu Tree or Setup dialog and CTRL S to open the File dialog Closing an active m...

Страница 77: ...called with the SETUP CTRL E and CTRL S keys Frequency 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 function block by means of the TOGGLE ON OFF CTRL T key or switching the RF output on and off with the aid of the RF ON OFF CTRL R key Changes affecting the signal flow are...

Страница 78: ...it mode is active Switches 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...

Страница 79: ...red 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 key to insert a new v...

Страница 80: ...ed 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 to the value When the ...

Страница 81: ...cting 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 DOWN arrow keys The selected item is highlighted b Press TOGGLE ON OFF key several times until the preferre...

Страница 82: ...ely 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 reversi ble Normally values cannot be restored in the case of mouse control because no explicit confirmation is required in this case and entries are automatically confirmed when the entry or sele...

Страница 83: ...n 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 about file handling and overview of the automatically assigned file pre fixes refer to chapter 4 7 File Management on page 69 4 5 1 Working ...

Страница 84: ...airs are taken into consideration rows containing an entry in only one column are ignored Creating a new list mode data list A new list can be created under a new name either by generating a blank file in the File Select menu see section chapter 4 7 File Management on page 69 or by changing an existing list which will then be saved under a new name 1 To create an empty data list select RF User Cor...

Страница 85: ...isplay a help topic press the ENTER key The corresponding help topic is displayed Navigating in the help topics 1 To scroll through a page use the UP DOWN arrow keys 2 To jump to the linked topic press the link text 3 Use the Previous or Next links to jump to the corresponding topic 4 Use the Scroll Right or Scroll Left buttons to shift the indicated area of the navi gation window to the left or r...

Страница 86: ...sb drive In the case of a connected network all network drives that can be accessed are available The files are accessed in a Save Recall dialog in the individual menus The files are differentiated according to their extensions each type of file is assigned a specific file content The extension is usually of no consequence to the user since access to the files occurs in the individual menus where ...

Страница 87: ...iles is displayed Saving and loading of all instrument settings All instrument settings are saved and loaded in the File menu To access the File menu press the FILE CTRL S key For more information see chapter 5 2 8 Storing and Loading Instrument Data File Key on page 100 4 7 1 File Select Dialog The Save Recall dialaog displays the available drives and directories In the upper part Recent Data Set...

Страница 88: ... the file is to be saved and then select the Save button 5 Create a new file To create a new file use the Save Settings functionality i e specify file name and directory and save the file The created file is empty it must be filled with the necessary values in the individual editor 4 7 2 File Manager The File Manager allows general file management such as copying shifting renaming and deleting fil...

Страница 89: ...ect the Create New Directory button and enter the name of the new directory in the entry window that opens Confirm with ENTER 4 7 2 1 Extensions for User Files The following table list all available file extensions for user files The currently available files on the instrument depends on the installed options Table 4 1 List of the automatically assigned file extensions in the instrument Function L...

Страница 90: ...a z CTRL 0 9 a z CTRL Enters the number letter BACKSPACE Backspace Clears the last entry number sign or decimal point DIAGR CTRL D Sets the cursor on the block diagram and hides all menus ESC CLOSE ESC CTRL G Selects the next higher menu selection level When the editing mode is exited with ESC the previous value is restored Closes an active menu FREQ CTRL F Activates the frequency entry G n dBuV A...

Страница 91: ...line SETUP CTRL E Opens the setup menu for general instrument set tings 4 8 1 Front Panel Key Emulation The R S SMC 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 associated button Legend of Front Panel Controls ...

Страница 92: ... key see chapter 5 2 2 Default Instrument Settings Preset Key on page 76 Switching from remote control to manual control using the LOCAL key see chapter 5 2 4 Switching to Manual Control Local Key on page 96 Configuring the generator and its interfaces in the Setup dialog e g setting the GPIB address starting an adjustment querying instrument data see chapter 5 2 3 General Configuration of Instrum...

Страница 93: ...55 LF output see chapter 5 5 3 LF Output on page 161 5 2 General Instrument Settings 5 2 1 Overview of General Instrument Settings This section describes the settings which do not directly affect signal generation Most of these settings can only be accessed by means of menus which are opened using keys or key combinations on the external keyboard or keys on the front panel key emulation The genera...

Страница 94: ...z RF level RF output switched off Offsets 0 Modulations State Off Uninterrupted level settings are switched off Level Attenuator Mode AUTO Internal level control Level ALC AUTO User correction Level Ucor OFF LF output State Off Sweep State Off Settings that are not affected by the PRESET key Reference frequency settings Ref Oscillator menu Power on settings Level EMF menu Network settings Setup me...

Страница 95: ...adjustments for which no external measuring equipment is needed can be started in the Internal Adjustments dialog The adjustments with external measuring equipment are described in the Service Manual on CD ROM supplied with the instru ment Adjustment is recommended if the temperature range in which the instrument is operated changes or prior to all applications which require maximum level and freq...

Страница 96: ...Adjustment Data Selects the data used for external level correction 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 chapter 2 Adjustment SCPI command CALibration hw ...

Страница 97: ...e version of the instrument software as well as all installed hardware and software options Software options purchased at a later stage can be activated with a keycode The acti vation code is supplied with the software option How to install options is described in Chapter 4 of the Service Manual supplied with the instrument The installation of hardware options purchased at a later stage is also de...

Страница 98: ...f the firmware update procedure SCPI command n a Hardware Options Software Options The tables in the sections Hardware and Software list the installed hardware and software options Option Short name of option Designation Name of Option SCPI command OPT on page 207 IDN on page 206 Loaded Modules Section Loaded Modules is provided for service purposes It lists all loaded software modules with their ...

Страница 99: ...firmware version a firmware update prior to enabling the software option may be required The information on the valid firmware versions for the purchased software option is provided together with the option The firmware update is described in the service manual chapter 4 on CD ROM supplied with the instrument Device ID Displays the instrument specific identification number The device ID is an uniq...

Страница 100: ...ote It is especially recommended to switch off the GUI update for optimum sweep performance with short dwell times and for fast settling times SCPI command SYSTem DISPlay UPDate on page 308 5 2 3 6 NRP Z Info Update In the NRP Z Info Update dialog the connected power sensors are indicated together with their serial number revision state and features The software of a connected sensor can be update...

Страница 101: ...te is that no other sensor is connected to the instrument The procedure is as follows Do not reconnect the sensor but keep it ready to be connected Select Rescue in the left sensor selection field Activate Run Update Confirm query in message box Connect sensor within 4 seconds The update starts a bar informs about the progress SCPI command n a 5 2 3 7 Selftest A selftest is provided for service pu...

Страница 102: ...P or MENU key under Environment The R S SMC is equipped with a network interface and can be connected to an Ethernet LAN local area network How to connect the signal generator to the network is described in chapter 2 6 1 Con necting the Instrument to the Network on page 31 Risk of network errors Connecting errors may affect the entire network We recommend to coordinate the connection of the instru...

Страница 103: ...in case the instrument is integrated in a windows network Note The workgroup can only be changed after protection level 1 is deactivated see chapter 5 2 3 12 Protection on page 91 SCPI command SYSTem COMMunicate NETWork COMMon WORKgroup on page 305 Address Mode Selects if the IP address is assigned automatically or manually Auto DHCP The IP address is assigned automatically The network used must s...

Страница 104: ...network itself is not affected SCPI command n a 5 2 3 10 Display Keyboard Settings In the Display Keyboard Settings menu the power save mode and external keyboard settings are made It is opened using the SETUP or MENU key under Environment Screen Saver Active Activates deactivates the screen save mode of the display If activated the display including backlight is completely switched off after the ...

Страница 105: ...cts the keyboard layout for the selected keyboard language The assignment of some keys depends on the selected layout and language SCPI command KBOard LAYout on page 223 KBOard LANGuage on page 223 5 2 3 11 Remote Channel Settings The Remote Channel Settings dialog provides access to the settings for remote control The dialog is opened using the SETUP or MENU key under Remote Besides the standard ...

Страница 106: ...ulated but not vice versa Note While working in a emulation mode the R S SMC specific command set is disa bled i e the SCPI command SYST LANG will be discarded To return to the SCPI command set of the R S SMC use the appropriate command of the selected command set If for example a HP generator is emulated the HP command EX returns to the instrument specific GPIB command set SCPI command SYSTem LAN...

Страница 107: ...ctive for both interfaces see also chap ter 5 2 3 13 Security on page 91 SCPI command SYSTem COMMunicate SERial BAUD on page 307 SYSTem COMMunicate SERial PARity on page 307 SYSTem COMMunicate SERial SBITs on page 308 Visa Resource Strings Indicates the visa resource strings used for remote control of the instrument A separate string is provided for remote control via the different interfaces SCPI...

Страница 108: ...ervice functions It is accessible to authorized personnel of R S Service Departments only Protection Level 3 5 are reserved for factory internal use Protection Level Password Protection Level 1 can be activated to expand the functionality of the internal adjustment and to access the selftests The password is 123456 SCPI command SYSTem PROTect ch STATe on page 313 5 2 3 13 Security The Security dia...

Страница 109: ...ssword The default password is instrument Note It is highly recommended to change the default user password before connecting the instrument to the network New Password User Password Enters the new security password The security password may contain decimal characters only SCPI command n a Confirm Password User Password Enters the new password for conformation The new password is only valid after ...

Страница 110: ...y valid after the Change Password button is pressed SCPI command n a Change Password Security Password Changes the password accordingly SCPI command n a USB Device Enables disables the USB interfaces The instrument does not recognize any device connected to the USB interface when the interface is disabled The setting requires the entry of the security password and is only accepted after the Accept...

Страница 111: ... of the security password and is only accepted after the Accept button is pressed SCPI command SYSTem DLOCk on page 308 Keyboard Enables disables an external keyboard and mouse connected to the instrument the front pannel keys of the instrument the rotary knob and the on screen keyboard If this parameter is disabled the instrument cannot be manually controlled but changes in the settings are shown...

Страница 112: ...g provides a function to reset the instrument s settings to their factory state This function is activated by pressing the Execute Factory Preset button Factory Preset Reset the instrument s settings to their factory state Note Since Factory Preset resets the Remote Channel and network settings to the default values executing Factory Preset via remote control terminates the connection to the instr...

Страница 113: ...he remote control settings The instrument can be operated e g menus can be opened However it is not possible to enter or change values The status message additionally indicates whether the LOCAL key is disabled or enabled If the REMOTE status message is shown the LOCAL key switches the instrument from remote control to manual control The current command must be fully processed before the mode is s...

Страница 114: ...rs are available in File Options on page 98 Automatic Naming Activates deactivates automatic generation of the file name Automatic naming is con figured in the Options submenu see File Options on page 98 SCPI command HCOPy FILE NAME AUTO STATe on page 222 File Info Indicates the file name The file name can be entered either manually via the file manager button File or generated automatically Autom...

Страница 115: ...deactivated activated separately to individu ally design the file name The resulting file name is indicated Path Opens the Select Hard Copy Destination Path dialog to select a path for storing the hardcopy Note For selecting the destination path a file name must be entered as well Otherwise the error message The name of a list may not be empty is displayed and the selection will be canceled Direct...

Страница 116: ...tomatically generated file name Note On initially switching on the device the number will be reset to the lowest possible value Starting with number 0 the output directory will be scanned for already existing files As long as files with the same name are existing the number will be increased by 1 The number will be automatically set to a number so that the resulting file name will be unique within...

Страница 117: ...age last viewed Contents in the navigation panel The contents list is used to open the individual help pages It has a hierarchical struc ture The highlighted line indicates where the currently 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 ...

Страница 118: ...ed An error message appears if an attempt is made to access a non existing list or to activate settings which are not supported by the instrument Network settings and remote settings are not saved and restored Lists are stored and loaded in the appropriate menus For example the user correc tion data list is created and stored in the User Correction menu When loading an instrument setting it is pos...

Страница 119: ...g the current instrument setting in a file Recent files Displays the files last used SCPI command n a Directory Selects the directory in which the file is to be stored The window opposite lists all settings files in this directory A new directory can be created in the File Manager dialog SCPI command MMEMory CDIRectory on page 227 File List Displays the files which are in the selected directory If...

Страница 120: ...mand SAV on page 208 File Manager Calls the File Management menu Directories can be created and files managed in this menu see chapter 5 2 8 4 File Manager on page 105 SCPI command n a 5 2 8 3 Loading Instrument Settings If Recall is selected under Select Operation the File menu provides options for loading complete instrument settings Here it is possible to select whether the current or stored fr...

Страница 121: ...ed If an instrument setting which accesses lists is stored this list is also loaded If the list has been deleted in the meantime an error message appears when the instru ment setting is loaded If the list has been overwritten in the meantime the new entries will be used SCPI command MMEMory LOAD STATe on page 230 RCL on page 208 Recall Immediate x Loads the selected configuration from one of the t...

Страница 122: ...irectory and File Name Selects the directory in which the file to be deleted or copied is located The window lists all files in this directory The file to be deleted or copied can be highlighted The path is indicated above the directory window SCPI command MMEMory CDIRectory on page 227 Cut Cuts the selected file It can be pasted into a different directory using the Paste button SCPI command MMEMo...

Страница 123: ...tered in the New Directory dialog Note When the subdirectory is entered it is possible to enter an absolute path name e g var USER MEAS or the path relative to the current directory e g MEAS The directory is created as a subdirectory in the selected level SCPI command MMEMory MDIRectory on page 230 5 3 RF Signal RF Block 5 3 1 Overview of RF Signal Settings for the RF output signal and analog modu...

Страница 124: ...icated in the block To query the impedance of the RF outputs use the command OUTPut hw IMPedance on page 233 State RF Activated deactivates the RF output by changing the state of the RF functional block Alternatively the RF ON OFF key can be used SCPI command OUTPut hw STATe on page 234 RF Output State Activated deactivates the RF output by enabling disabling the RF in the Configure dia log of the...

Страница 125: ...eq This field provides the direct input of the RF frequency Alternatively you can enter the RF frequency in the Frequency Phase dialog Be aware 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 The signal generator offers the possibility t...

Страница 126: ... Frequency Menu In the combined Frequency Phase dialog you can enter the frequency the frequency offset and multiplication factor of a downstream instrument set the step width for the frequency entry using the rotary knob and set the phase for the RF output signal To open the Frequency Phase dialog select RF Configure Frequency or use the MENU key under RF The Frequency Phase dialog is divided int...

Страница 127: ...e value of the RF frequency in the header corresponds to the frequency at the output of the downstream instrument SCPI command SOURce hw FREQuency OFFSet on page 259 Multiplier RF Signal Sets the multiplication factor for the RF frequency In the frequency field of the status bar the instrument adjusts its frequency display according to the set multiplication factor This frequency value shows the f...

Страница 128: ...e RF Signal Sets the phase of the RF signal The current phase of the signal is used as the reference This function allows for example the phase of the output signal to be synchronized with the phase of a signal from a second signal generator SCPI command SOURce hw PHASe on page 271 Reset Delta Phase Display RF Signal Resets delta phase value The set phase is adopted as the new current phase i e th...

Страница 129: ...Rce ROSCillator SOURce on page 289 Deactivate RF Output Reference Oscillator Determines if the RF output is switched off in case of a missing external reference signal for selection external source If enabled 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 informati...

Страница 130: ...us internal and external triggering of all connected sen sors You can directly connect the R S NRP Z Sensors to the standard NRP sensor connec tors of the hub The hub is connected to the R S instrument via USB with the adapter cable R S NRP Z4 See also the R S website http www rohde schwarz com in section Power Meters Voltmeters R S NRP Z Sensors for information on the sensor hub and the available...

Страница 131: ...tch to the respective sensor in the selection list When you connect your power sensor s via the R S NRP Z5 USB sensor hub each channel of the hub is firmly assigned to the associated sensor channel in the generator Sensor Power Viewer Selects the R S NRP Z power sensor for indication Indicates the connector used for the detected sensors The values listed below belong to the respective sensor In re...

Страница 132: ...nfluenced by these commands measurements results 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 command header Suffix 1 denotes the sensor connected at the first USB interface and suffix 2 3 and 4 are assigned to further sensors connected via USB The suffix is identical to the index which is assigned automatically to each se...

Страница 133: ...he 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 see tips below R S power sensors automatically detect the presence of any significant input power This aborts zeroing and generates an error message Zeroing can take a few seconds depending on the sensor model refer to the documentation of...

Страница 134: ... irrespective of the selected unit for result display SCPI command SENSe ch POWer OFFSet STATe on page 240 SENSe ch POWer OFFSet on page 239 Auto Once Searches for the optimum filter length for the current measurement conditions and indi cates value in the Filter Length field above SCPI command SENSe ch POWer FILTer SONCe on page 238 Filter Length Power Sensors Selects the filter length used for m...

Страница 135: ...cated in the field to the right User The filter length is set manually The filter length is entered in the entry window to the right As the filter length works as a multiplier for the time window this results in a con stant measurement time Values 1 and 2 n are settable Note The time window varies depending on the used sensor For most sensors it is fixed to 20 ms For the R S NRP Z81 sensor it is 1...

Страница 136: ...r and the RF output level set in the Level EMF dialog of the RF block 5 3 6 1 RF level vs RF output level The level entered and displayed in the Level field 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 ...

Страница 137: ...s are labeled with these units Note The SCPI command sets the level of the Level display i e an entered level offset is taken into consideration in the level value SCPI command SOURce hw POWer LEVel IMMediate AMPLitude on page 276 5 3 7 RF Level EMF 5 3 7 1 RF Level To open the RF Level EMF dialog select RF Configure Level or use the MENU key under RF The combined menu RF Level EMF is divided into...

Страница 138: ...ut signal with high signal to noise ratio as well as low distortion according to the data sheet LOW Noise This setting forces the generator to optimize the signal to noise ratio LOW Distor tion The generator reduces distortion harmonics of the RF signal SCPI command SOURce hw POWer LMODe on page 279 Amplitude RF Level Sets the RF level of the RF output connector The level entered and displayed her...

Страница 139: ...m instrument SCPI command SOURce hw POWer LEVel IMMediate OFFSet on page 277 Attenuator Settings The attenuator mode is set in the Attenuator Settings section Attenuator Mode RF Level Sets the attenuator mode at the RF output Auto Standard mode Fixed When this operating mode is switched on the attenuator and the relays are fixed in their current positions to provide level settings without inter ru...

Страница 140: ... rotary knob ON The level value set with the rotary knob is varied using the user defined step width which is entered under Variation Step OFF The level value set with the rotary knob is varied in steps of one unit at the cursor position standard operating mode SCPI command SOURce hw POWer STEP MODE on page 282 Variation Step RF Level Sets the user defined step width for entering the RF level usin...

Страница 141: ...he output is deactivated when the instrument is switched on Previous Set ting When the instrument is switched on the output assumes the same state as it had when the instrument was switched off SCPI command OUTPut hw STATe PON on page 234 Display Level as Voltage of EMF RF Level Activates display of the signal level as voltage of the EMF no load voltage If this setting is deactivated the level is ...

Страница 142: ...ctivates ALC The instrument switches to Sample Hold S H state which still allows to maintain a constant output level The following section explains the functionality of Sample Hold to provide an overview and to indicate what is to be considered On and Auto require no additionial explan ation Furthermore find the ALC state settings described in detail in State ALC ALC OFF Sample Hold In S H mode th...

Страница 143: ...ve SCPI command SOURce hw POWer ALC SONCe on page 275 5 3 8 2 User Correction The User Correction function is used to create and activate lists in which level correction values predefined by the user are freely assigned to RF frequencies Correction is per formed by the user defined table values being added to the output level for the respective RF frequency With frequencies which are not contained...

Страница 144: ...user correction is effective in all operating modes User Correction Menu To open the User Correction menu select RF Configure User Correction or use the MENU key under RF The combined menu ALC UCOR is divided into the several sections User Correction Settings The User Correction settings are set in the most lower section of the combined dialog this section is used to activate deactivate user corre...

Страница 145: ...s frequency and level otherwise the entries are lost Frequency Hz Enters the frequency to which the level correction value applies Note The Fill function 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 acquir...

Страница 146: ...rked row Delete Range Allows to delete any number of rows starting with the marked row The number of rows to be deleted can be defined in an entry window Save The list is saved under its current name SCPI command SOURce hw CORRection CSET SELect on page 252 SOURce hw CORRection CSET DATA FREQuency on page 246 SOURce hw CORRection CSET DATA POWer on page 247 Import Export User correction list can b...

Страница 147: ...imal separator used in the ASCII data between decimal point and comma with floating point numerals SCPI command SOURce hw CORRection DEXChange AFILe SEParator DECimal on page 250 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 SCPI command SOURce hw CORRection DEXChange AFILe S...

Страница 148: ...ange EXECute on page 250 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 selec tion here the default for start end and increment value are set As the settings a...

Страница 149: ...sensors are connected to either the SENSOR con nector or to one of the USB interfaces Configuration of the connection is performed in the Power Sensor menu see chapter 5 3 5 NRP Z Power Viewer on page 113 The filling of the ucor list with measurement data is performed in the ucor list editor see Edit User Cor Data User Correction on page 128 In the editor the frequencies for which the correction v...

Страница 150: ... sensor is detected and the user correction list contains at least one frequency value SCPI command SOURce hw CORRection CSET DATA SENSor ch POWer SONCe on page 247 5 3 9 Sweep Mode 5 3 9 1 Overview The R S Signal Generator offers three different sweep types frequency sweep level sweep and LF sweep to be activated alternatively Each type has 6 modes which differ with respect to the sweep cycle mod...

Страница 151: ... on page 83 5 3 9 2 RF Frequency Sweep The dialog is used to activate and configure a sweep for the RF frequency To open the Frequency Sweep menu select RF Configure RF Frequency Sweep or use the menu tree of the MENU key under RF In the top section of the menu the RF sweep mode is activated and the sweep mode is selected The buttons are used to reset the RF sweep all sweep modes or to execute the...

Страница 152: ...ommand SOURce hw FREQuency MODE on page 258 Mode Frequency Sweep Selects the sweep instrument operating mode and the sweep mode Auto Sets an automatic repeated sweep cycle If a different sweep mode was activated prior to the Auto mode the cycle continues from the current sweep setting The Reset Sweep button resets the sweep to the start frequency Example SOUR SWE FREQ MODE AUTO TRIG FSW SOUR AUTO ...

Страница 153: ...o the Current Freq value triggers a sweep step The step width is set below at entry field Step Lin or Step Log If a different sweep mode was activated prior to the Step mode the current sweep is stopped The Step sweep starts at the current RF frequency when triggered The Reset Sweep button resets the sweep to the start frequency Example SOUR SWE FREQ MODE MAN SOUR FREQ MODE SWE SOUR SWE FREQ SPAC ...

Страница 154: ... the sweep to the start frequency Example SOUR SWE FREQ MODE AUTO TRIG FSW SOUR EXT SOUR FREQ MODE SWE External trigger Extern Step Sets a step by step sweep cycle Each sweep step is triggered by an external trigger signal trigger source as described under Extern Sin gle The step width is set below at entry field Step Lin or Step Log If a different sweep mode was activated prior to the Extern Step...

Страница 155: ...the con nectors for external trigger signal input The external trigger signal is input at the rear of the instrument BNC connector INST TRIG Example SOUR SWE FREQ MODE AUTO TRIG FSW SOUR EAUT SOUR FREQ MODE SWE External trigger SCPI command SOURce hw SWEep FREQuency MODE on page 291 TRIGger hw FSWeep SOURce on page 317 SOURce hw FREQuency MODE on page 258 Execute Single Sweep Frequency Sweep Trigg...

Страница 156: ... linear or logarithmic sweep spacing Linear With the linear sweep the step width is a fixed frequency value which is added to the current frequency The step width is entered below Logarithmic With the logarithmic sweep the step width is a constant fraction of the current frequency This fraction is added to the current frequency The logarithmic step width is entered below in SCPI command SOURce hw ...

Страница 157: ...URce hw SWEep FREQuency STEP LINear on page 294 Step Log With the logarithmic sweep the step width is a constant fraction of the current frequency This fraction is added to the current frequency The logarithmic step width is entered in SCPI command SOURce hw SWEep FREQuency STEP LOGarithmic on page 295 Dwell Time Frequency Sweep Sets the dwell time The dwell time determines the duration of the ind...

Страница 158: ...n the Level Sweep menu select RF Configure Level Sweep or use the MENU key under RF RF Level Sweep Settings In the top section the Level Sweep is activated and the sweep mode is selected The buttons are used to reset the level sweep all sweep modes or to execute the level sweep Single mode The sweep range sweep spacing and dwell time are set in the bottom section State Level Sweep Activates Level ...

Страница 159: ...step sweep cycle If this mode is activated the cursor moves to the value displayed for Current Level Each sweep step is triggered by a variation of the value in the Current Level entry window The step width is set below at entry field Step If this mode is activated the cursor moves to the value displayed for Current Level If a different sweep mode was activated prior to the Step mode the current s...

Страница 160: ...t Sweep button resets the sweep to the start level Example SOUR SWE POW MODE AUTO TRIG PSW SOUR EXT SOUR POW MODE SWE External trigger Extern Step Sets a step by step sweep cycle Each sweep step is triggered by an external trigger signal trigger source as described under Extern Sin gle The step width corresponds to the step width of the rotary knob If a different sweep mode was activated prior to ...

Страница 161: ...description of the rear panel for information about the con nectors for external trigger signal input see section Legend for Rear Panel View Example SOUR SWE POW MODE AUTO TRIG PSW SOUR EAUT SOUR POW MODE SWE External trigger SCPI command SOURce hw SWEep POWer MODE on page 296 TRIGger hw PSWeep SOURce on page 319 SOURce hw POWer MODE on page 280 Reset Sweep Level Sweep Resets the sweep The start l...

Страница 162: ...hape of sweep sequence resembles a sawtooth Triangle One sweep runs from start to stop level and back i e the shape of the sweep resembles a triangle Each subsequent sweep starts at the start level again SCPI command SOURce hw SWEep POWer SHAPe on page 297 Step Level Sweep Sets the step width for the individual sweep steps This entry is effective for all sweep modes With the level sweep the logari...

Страница 163: ...ions 5 4 1 Overview The R S SMC provides amplitude modulation AM frequency modulation phase mod ulation and pulse modulation In addition the RF signal can be modulated with internal modulations waveforms The modulations are available for the basic unit R S SMC frequency option R S SMC B10x without additional equipment options A standard LF generator is provided for internal modulation Settings for...

Страница 164: ... achieve the displayed modulation depth and range The input voltage should not exceed 1 1 Vs otherwise modulation distortions might occur With external pulse modulation the switching point is max 2 4 V and the voltage at the input should not exceed 5 V The maximum modulation frequency is 10 MHz for frequency and phase modulation Simultaneous Operation of Several Modulations or Other Operating Mode...

Страница 165: ...source only These settings affect all modulations which use the same modulation source State Activates deactivates AM modulation SCPI command SOURce hw AM STATe on page 244 AM Source Selects the source for the AM signal Internal Selects the internal LF generator as the source for AM modulation External Selects the external source The external signal is input via the MOD EXT connector SCPI command ...

Страница 166: ... MODext IMPedance on page 262 5 4 3 Frequency Modulation FM An internal or external source can be selected for frequency modulation The LF GEN modulation generator is available as the internal source The MOD EXT input connectors for external feed of analog modulation signals are at the front of the instrument The coupling mode of the input AC or DC can be selected It is not possible to use frequen...

Страница 167: ...viation depends on the RF frequency set and the selected modulation mode see data sheet It is possible to enter a deviation that is too high for a certain RF frequency or to vary the RF frequency to a range in which the deviation can no longer be set In this case the maximally possible deviation is set and an error message is displayed SCPI command SOURce hw FM DEViation on page 253 LF Gen Frequen...

Страница 168: ...DC The modulation signal is not altered SCPI command SOURce hw FM EXTernal COUPling on page 253 External Input Impendance Source External only Selects the impedance for external feed via the EXT MOD input Selection 600 Ohm and high 100 kOhm is available Note This setting affects all analog modulations which use the external modulation source SCPI command SOURce hw INPut MODext IMPedance on page 26...

Страница 169: ...urces State Activates deactivates PhiM modulation Activation of PhiM deactivates frequency modulation SCPI command SOURce hw PM STATe on page 274 PhiM Source Selects the source for the PhiM signal Internal Selects the internal LF generator as the source for PhiM modulation External Selects the external source The external signal is input via the MOD EXT connector SCPI command SOURce hw PM SOURce o...

Страница 170: ...tage content is separated from the modulation signal DC The modulation signal is not altered SCPI command SOURce hw PM EXTernal COUPling on page 272 External Input Impendance Source External only Selects the impedance for external feed via the EXT MOD input Selection 600 Ohm and high 100 kOhm is available Note This setting affects all analog modulations which use the external modulation source SCP...

Страница 171: ...er section of the menu the modulation source is selected and the modulation switched on The configuration of the selected external and or internal modulation source is performed in the lower section of the menu The menu varies according to the selected modulation source State Activates deactivates pulse modulation When the internal modulation source pulse generator is selected the pulse generator ...

Страница 172: ...so at the LF output front of the instrument The frequency setting for the LF generator can be made both in the modulation menus and in the LF Output menu The settings are effective for all modulations using the internal modulation source A change to the frequency of the LF generator automatically has an effect on modulation if the LF generator is selected as the modulation source i e Internal is s...

Страница 173: ...e bottom of the section State LF Sweep Activates LF Sweep mode Note Activating the LF sweep automatically deactivates the RF frequency sweep and level sweep SCPI command SOURce LFOutput FREQuency MODE on page 264 Mode LF Sweep Selects the Sweep instrument operating mode and Sweep mode Auto Sets are automatic repeated sweep cycle If a different sweep mode was activated prior to the Auto mode the cy...

Страница 174: ...rent LF frequency The Reset Sweep button resets the sweep to the start frequency Example SOUR LFO SWE FREQ MODE MAN SOUR LFO FREQ MODE SWE SOUR LFO SWE FREQ SPAC LIN SOUR LFO SWE FREQ STEP LIN 1E34 SOUR LFO FREQ MAN 12 kHz The value entered with command SOUR LFO SWE FREQ STEP LIN LOG sets the step width The value entered with command SOUR LFO FREQ MAN has no effect the command only sets the next s...

Страница 175: ...s the sweep at the current fre quency Stop The third external trigger signal starts the sweep at the start frequency Start If a different sweep mode was activated prior to the Extern Start Stop mode the current sweep is stopped and the Extern Start Stop sweep starts at the start frequency when triggered The Reset button resets the sweep to the start frequency The external trigger signal is input a...

Страница 176: ...logarithmic sweep spacing SCPI command SOURce LFOutput SWEep FREQuency SPACing on page 268 Shape LF Frequency Sweep Selects the cycle mode for a sweep sequence shape 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 sh...

Страница 177: ...The dwell time determines the duration of the individual sweep steps The Dwell Time set by the user is used as the step time of the sweep The effective net dwell time is shorter reduced by the setting time This setting time may be greater than the time specified in the data sheet Note It is recommended to switch off the GUI update for optimum sweep performance espe cially with short dwell times se...

Страница 178: ...is setting has no effect on the modulations The modulation signal is output at the LF OUTPUT connector of the instrument SCPI command SOURce LFOutput STATe on page 266 Output Voltage LF Output Sets the output voltage of the LF output The entered value determines the peak voltage SCPI command SOURce LFOutput VOLTage on page 270 LF Gen Frequency Sets the frequency of the LF generator This setting af...

Страница 179: ...CPI command SOURce hw PGEN STATe on page 270 Pulse Mode Pulse Generator Sets the mode of the pulse generator Single A single pulse is generated in one pulse period Double Two pulses are generated in one pulse period Additional settings for the double pulse are available in the menu SCPI command SOURce hw PULM MODE on page 284 Pulse Period Pulse Generator Sets the period of the generated pulse The ...

Страница 180: ...t Triggered The pulse generator signal is triggered by an external trigger event The trigger signal is supplied via the PULSE EXT connector Ext Gated The pulse generator signal is gated by an external gate signal The signal is supplied via the PULSE EXT connector SCPI command SOURce hw PULM TRIGger MODE on page 287 External Trigger Input Slope Pulse Generator External Trigger only Sets the polarit...

Страница 181: ...R S SMC100A 164 Operating Manual 1411 4060 32 04 Inverse The pulse signal is generated while the gate signal is low SCPI command SOURce hw PULM TRIGger EXTernal GATE POLarity on page 286 LF Generator and LF Output Mod Gen ...

Страница 182: ...nter face VISA address string ASRL 0 9 INSTR For a description of the interface refer to chapter 6 1 5 Serial Interface on page 169 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 ...

Страница 183: ...rface on page 169 For more information about VISA refer to the user documentation 6 1 2 Messages The messages transferred on the data lines are divided into the following categories Interface messages Interface messages are transmitted to the instrument on the data lines with the attention line being active LOW They are used to communicate between the con troller and the instrument Interface messa...

Страница 184: ...easurement results instrument settings and information on the instrument status 6 1 3 LAN Interface To be integrated in a LAN the instrument is equipped with a LAN interface consisting of a connector a network interface card and protocols For remote control via a network the PC and the instrument must be connected via the LAN interface to a common network with TCP IP network protocol They are conn...

Страница 185: ...s cannot be lost 6 1 3 2 Socket Communication An alternative way for remote control of the software is to establish a simple network communication using sockets The socket communication also referred as Raw Ether net communication does not necessary require a VISA installation on the remote con troller side The simplest way to establish socket communication is to use the built in telnet program Th...

Страница 186: ...POL Serial Poll Starts a serial poll 6 1 4 USB Interface For remote control via the USB connection the PC and the instrument must be connected via the USB type B interface A USB connection requires the VISA library to be installed VISA detects and configures the R S instrument automatically when the USB connection is established You do not have to enter an address string or install a separate driv...

Страница 187: ...EEE Bus Interface To be able to control the instrument via the GPIB bus the instrument and the controller must be linked by a GPIB bus cable A GPIB bus card the card drivers and the program libraries for the programming language used must be provided in the controller The con troller must address the instrument with the GPIB bus address see chapter 6 1 6 2 GPIB Instrument Address on page 171 Chara...

Страница 188: ...nnected to the bus and does not require addressing Addressed Commands Addressed commands are encoded in the range 00 through 0F hex They only affect instruments addressed as listeners Command Effect on the instrument 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 inp...

Страница 189: ... order to operate the instrument via remote control it must be addressed using the defined interface address See chapter 6 1 3 LAN Interface on page 167 chap ter 6 1 4 USB Interface on page 169 chapter 6 1 5 Serial Interface on page 169or chapter 6 1 6 GPIB Interface IEC IEEE Bus Interface on page 170 for details The VISA resource strings are indicated in the Setup Remote Channel Settings menu Ref...

Страница 190: ...mand see chapter 6 1 3 3 LAN Interface Mes sages on page 168 The instrument switches to REM LLO state and transition to manual mode is not anymore possible via the remote control command GTL Switching to manual mode is only possible via remote control then 4 Enable the LOCAL key with the interface message NREN 6 2 2 Returning to Manual Operation Before returning to manual control command processin...

Страница 191: ... on the controller a Open port to the instrument CALL IBFIND DEV1 generator b Inform controller about instrument address CALL IBPAD generator 28 c Reset instrument 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 o...

Страница 192: ...ontroller and the instrument to the network network cable and switch them on 2 Start the Measurement Automation Control program on the controller 3 Select Devices and Interfaces Create New 4 Select VISA TCP IP Resource and confirm with Next 5 Choose the type of TCP IP resource you wish to add and select Next 6 Enter the IP address or the host name of the R S SMC and select Next Starting a Remote C...

Страница 193: ...instrument identification within the program and displayed in the menu as an option in case of an Ethernet link 8 Confirm the settings with Finish The instrument is configured and the settings are displayed in the TCP IP Set tings tab 9 To test the connection select Validate A message indicates whether the link to the instrument can be set up or not Starting a Remote Control Session ...

Страница 194: ...ddresses may be required for link setup e g gateway and subnet mask which are known to the network administrator The instrument is now registered in the program and can be addressed via the resource string or alias name Starting a remote control over LAN using VXI 11 1 Start the Measurement Automation Explorer on the controller 2 In the Configuration window select Device and Interfaces VISA TCP IP...

Страница 195: ...e further devel oped Setting up a Telnet Connection To control the software only a telnet program is required The telnet program is part of every operating system 1 To establish a Telnet connection with the R S SMC start the telnet program and enter the socket address The socket address is a combination of the IP address or the host name of the R S SMC and the number of the port configured for rem...

Страница 196: ...e TcpClient class that is intended to explain on how to get started with programming of sockets The example sets up a socket communication to R S SMC 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 u...

Страница 197: ... struct sockaddr_in SockAddrStruct typedef struct hostent HostInfoStruct class TcpClient public TcpClient TcpClient 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 HostInf...

Страница 198: ...e hostname currentPort port currentSocketDescr socket AF_INET SOCK_STREAM 0 if currentSocketDescr 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 con...

Страница 199: ...length 1 0 0 throw string can t transmit data n delete transmitBuffer void TcpClient 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 receiveBu...

Страница 200: ...l useSingleCommand false string singleCommand string hostname int port 5025 string input 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...

Страница 201: ...ters The header and the parameters are separated by a white space ASCII code 0 to 9 11 to 32 decimal e g blank The headers may consist of several mnemonics key words 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 Commo...

Страница 202: ... ITEM ALL HCOPy ITEM LABel string HCOPy PAGE DIMensions QUADrant N HCOPy PAGE ORIentation LANDscape PORTrait HCOPy PAGE SCALe numeric value MMEMory COPY file_source file_destination SENSE BANDwidth BWIDth RESolution numeric_value SENSe FREQuency STOP numeric value SENSe LIST FREQuency numeric_value numeric_value Long and short form The mnemonics feature a long form and a short form The short form ...

Страница 203: ... is specified Some standards define a fixed numbering starting with 0 If the numbering differs in manual operation and remote control it is indicated for the corresponding command Optional mnemonics Some command systems permit certain mnemonics to be inserted into the header or omitted These mnemonics are marked by square brackets in the description The instru ment must recognize the long command ...

Страница 204: ... commands These mnemonics are indicated in the same line they are separated 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 SEN...

Страница 205: ...quantities the unit can be entered Allowed unit prefixes are G giga MA mega MOHM and MHZ are also allowed K kilo M milli U micro and N nano If the unit is missing the basic unit is used Example SENS FREQ STOP 1 5GHz SENS FREQ STOP 1 5E9 Units For physical quantities the unit can be entered Allowed unit prefixes are G giga MA mega MOHM MHZ K kilo M milli U micro N nano If the unit is missing the ba...

Страница 206: ... 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 mnemonics to the command They must be entered following the quotation mark Example SENSe LIST FREQ MAXimum Returns the maximum numeric value as a result Boolean Parameters Boolean ...

Страница 207: ...ssion 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 into blocks of definite le...

Страница 208: ...LL This command line contains two commands The first command belongs to the MMEM system the second command belongs to the HCOP system If the successive commands belong to the same system having one or several levels in common the command line can be abbreviated To this end the second command after the semicolon starts with the level that lies below the common levels The colon following the semicol...

Страница 209: ...RI Response LAND 6 4 Command Sequence and Synchronization IEEE 488 2 defines a distinction between overlapped and sequential commands A sequential command is one which finishes executing before the next command starts executing Commands that are processed quickly are usually implemented as sequential commands Sequential commands are not implemented in the instrument however the execution time of m...

Страница 210: ... messages Example Overlapping command with OPC The instrument implements INITiate IMMediate as an overlapped command Assuming that INITiate IMMediate takes longer to execute than OPC sending the following command sequence results in initiating a sweep and after some time set ting the OPC bit in the ESR INIT OPC Sending the following commands still initiates a sweep INIT OPC CLS However since the o...

Страница 211: ...ommand takes only little time to process The two synchronization techniques simply block overlapped execution of the command For time consuming overlapped commands it is usually desirable to allow the controller or the instrument to do other useful work while waiting for command execution Use one of the following methods OPC with a service request 1 Set the OPC mask bit bit no 0 in the ESE ESE 1 2...

Страница 212: ...pplication As an alternative provided the programming environment of the controller application supports threads separate threads can be used for the application GUI and for controlling the instrument s via SCPI A thread waiting for a OPC thus will not block the GUI or the communication with other instruments 6 5 Status Reporting System The status reporting system stores all information on the cur...

Страница 213: ...s The Event Status Register ESR with the associated mask register standard Event Status Enable ESE The STATus OPERation and STATus QUEStionable registers which are defined by SCPI and contain detailed information on the instrument IST PPE The IST flag Individual STatus like the SRQ combines the entire instrument status in a single bit The PPE fulfills the same function for the IST flag as the SRE ...

Страница 214: ...can be processed by the controller as positive integers Fig 6 2 The status register model Description of the five status register parts The five parts of a SCPI register have different properties and functions CONDition The CONDition part is written into directly by the hardware or the sum bit of the next lower register Its contents reflect the current instrument status This register part can only...

Страница 215: ...e bit 0 the associated EVENt bit does not contribute to the sum bit ENABle bit 1 if the associated EVENt bit is 1 the sum bit is set to 1 as well This part can be written into and read by the user as required Its contents are not affected by reading Sum bit The sum bit is obtained from the EVENt and ENABle part for each register The result is then entered into a bit of the CONDition part of the hi...

Страница 216: ...bit indicates a serious error which can be specified in greater detail by polling the event status register 6 MSS bit master status summary bit The bit is set if the instrument triggers a service request This is the case if one of the other bits of this registers is set together with its mask bit in the service request enable register SRE 7 Not used 6 5 3 2 IST Flag and Parallel Poll Enable Regist...

Страница 217: ...h a number between 200 and 300 which denotes the error in greater detail is entered into the error queue 5 Command Error This bit is set if a command which is undefined or syntactically incorrect is received An error message with a number between 100 and 200 which denotes the error in greater detail is entered into the error queue 6 User Request This bit is set on pressing the LOCAL key i e when t...

Страница 218: ...y is realized via interface messages and is thus clearly faster The serial poll method is defined in IEEE 488 1 and used to be the only standard possi bility for different instruments to poll the status byte The method also works for instru ments which do not adhere to SCPI or IEEE 488 2 The serial poll is mainly used to obtain a fast overview of the state of several instruments connected to the c...

Страница 219: ...nt leads to an entry in the error queue The entries of the error queue are detailed plain text error messages that can be looked up in the Error Log or queried via remote control using SYSTem ERRor NEXT or SYSTem ERRor ALL Each call of SYSTem ERRor NEXT provides one entry from the error queue If no error messages are stored there any more the instrument responds with 0 No error The error queue sho...

Страница 220: ...the command is ignored and the instrument status remains unchanged i e other settings are not automatically adapted Therefore control programs should always define an initial instrument status e g using the RST command and then implement the required settings Command sequence As a general rule send commands and queries in different program messages Other wise the result of the query may vary depen...

Страница 221: ...emote Control Basics R S SMC100A 204 Operating Manual 1411 4060 32 04 regularly since faulty commands from the controller to the instrument are recorded there as well General Programming Recommendations ...

Страница 222: ... IEEE 488 2 IEC 625 2 standard These com mands have the same effect and are employed in the same way on different devices The headers of these commands consist of followed by three letters Many common commands are related to the Status Reporting System Available common commands CAL 205 CLS 205 ESE 206 ESR 206 IDN 206 IST 206 OPC 207 OPT 207 PCB 207 PRE 207 PSC 207 RCL 208 RST 208 SAV 208 SRE 208 S...

Страница 223: ... status enable register in decimal form Parameters Value Range 0 to 255 ESR Event Status Read Returns the contents of the event status register in decimal form and subsequently sets the register to zero Return values Contents Range 0 to 255 Usage Query only IDN IDeNtification returns the instrument identification Return values ID Rohde Schwarz device type serial number firmware ver sion Example Ro...

Страница 224: ...string A zero is returned for options that are not installed Usage Query only PCB Address Pass Control Back Indicates the controller address to which remote control is returned after termination of the triggered action Setting parameters Address Range 0 to 30 Usage Setting only PRE Value Parallel poll Register Enable Sets parallel poll enable register to the indicated value The query returns the c...

Страница 225: ...ment to a defined default status The default settings are indicated in the description of commands The command is equivalent to SYSTem PRESet Usage Setting only SAV Number SAVe stores the current instrument settings under the specified number in an intermedi ate memory The settings can be recalled using the command RCL with the associated number To transfer the stored instrument settings in a file...

Страница 226: ... commands until all preceding commands have been executed and all signals have settled see also command synchronization and OPC Usage Event 7 2 Preset Commands The preset commands are not bundled in one subsystem Therefore they are listed sep arately in this section In addition a specific preset command is provided for each digital standard and for the fader These specific commands are described i...

Страница 227: ... only SYSTem FPReset The command triggers an instrument reset to the original state of delivery Note Since Factory Preset resets the Remote Channel and network settings to the default values executing Factory Preset via remote control terminates the connection to the instrument if these settings had been configured to values different to the default ones The factory preset function resets nearly a...

Страница 228: ...on hw LEVel MEASure 212 CALibration hw LEVel EXTern DATA 212 CALibration ALL MEASure The command starts all internal adjustments for which no external measuring equipment is needed Return values Measure 0 1 Example CAL ALL MEAS starts the adjustment of all functions for the entire instrument Response 0 adjustment has been performed successfully Usage Query only SCPI confirmed CALibration hw FMOFfs...

Страница 229: ...or of external level correction 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 chapter 2 Adjustment Parameters Data FACT CUST RST FACTory Example CAL LEV EXT DATA F...

Страница 230: ...e 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 Queries the instrument configuration returns the data of all available modules DIAG BGIN MBRD Queries the configuration of the motherboard Response MBRD 1141 3501 02 1 5 3 100023 Module motherboard with stock number 1141 3501 0...

Страница 231: ...ds to set the power save mode of the instru ment DISPlay PSAVe HOLDoff Holdoff This command sets the wait time for the screen save mode of the display The available value range is 1 to 60 minutes the resolution 1 minute The entry is dimensionless Parameters Holdoff float Range 1 to 60 RST 1 Default unit minute Example DISP PSAV HOLD 10 sets the wait for the screen saver mode to 10 minutes DISPlay ...

Страница 232: ...ence of bytes within a binary block This only affects blocks which use the IEEE754 format internally Parameters Border NORMal SWAPped NORMal The instrument expects with setting commands and sends with queries the least significant byte of each IEEE754 floating point number first and the most significant byte last SWAPped The instrumenet expects with setting commands and sends with queries the most...

Страница 233: ...eg isters are queried Parameters Sregister ASCii BINary HEXadecimal OCTal ASCii The register content is returned as a decimal number BINary The register content is returned as a binary number B is placed in front of the number HEXadecimal The register content is returned as a hexadecimal number H is placed in front of the number OCTal The register content is returned as an octal number Q is placed...

Страница 234: ...ansfers the hardcopy data directly as a NByte stream to the remote client Return values Data string Example HCOP DEV LANG JPG HCOP DATA transfers the hardcopy to the remote client Usage Query only HCOPy DEVice Device The command defines the output device The hardcopy can be output in a file The HCOPy FILE commands are used for configuration The file is accessible using the MMEM commands In additio...

Страница 235: ...ile into which the hardcopy will be stored The path is specified together with the file name Access to the file via remote control is possible using the commands of the MMEM Subsystem In contrast command HCOPy DATA transfers the hardcopy contents directly to the remote client where they can be further processed If automatic file naming is activated the hardcopy is stored into a file with an automa...

Страница 236: ...dcopy files will be stored if auto naming is activated HCOP FILE AUTO STAT ON The directory will be created if it does not exist yet Parameters Directory string RST HCopy Example HCOP FILE AUTO DIR usb HCopy defines the destination directory usb HCopy HCOPy FILE NAME AUTO DIRectory CLEar This command deletes all files with extensions bmp img png and xpm in the directory set for automatic naming Ex...

Страница 237: ...E DAY The command returns the day of the current system date which will be used in the file name if automatic naming is activated Return values Day float Example HCOP FILE AUTO DAY returns the day in the date part of the automatic file name Usage Query only HCOPy FILE NAME AUTO FILE DAY STATe State This command activates the usage of the day in the automatic file name Parameters State 0 1 OFF ON R...

Страница 238: ...h the same name are existing the number will be incremented by 1 The number will be automatically set to a number so that the resulting file name will be unique within the selected path The current number will not be saved in the save recall file but will be temporarily stored within the database On subsequent saves the number will be incremented Return values Number float Example HCOP FILE AUTO N...

Страница 239: ...This command activates the usage of the year in the automatic file name Parameters State 0 1 OFF ON RST ON Example HCOP FILE AUTO YEAR STAT OFF deactivates the usage of the year in the automatic file name HCOPy FILE NAME AUTO STATe State This command activates deactivates automatic naming of the hardcopy files Parameters State 0 1 OFF ON RST ON Example HCOP FILE AUTO STAT OFF deactivates automatic...

Страница 240: ...ns the commands to set the external keyboard KBOard LANGuage 223 KBOard LAYout 223 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 KBOard LAYout This command selects the keyboard language The assignment...

Страница 241: ...case and lowercase letters The file and the optional file extension are separated by a dot All letters and numbers are permitted numbers are however not permitted at the beginning of the file name Where possible special characters should not be used Use of the slashes and should be avoided since they are used in file paths A number of names are reserved by the operating system e g CLOCK CON AUX CO...

Страница 242: ...utomatically assigned file extensions in the instrument Function List type Contents File suffix Instrument State Settings Instrument settings savrcltxt User Correction List User defined level correction values uco Export Data txt or csv NRP Settings Settings NRP Settings nrp 7 9 3 Examples In these examples the current instrument setting is stored in the file test1 savrcltxt in the directory user ...

Страница 243: ...ectories in the current or specified directory per form MMEM DCAT LENG usb user Response 2 2 To query the number of files in the current or specified directory perform MMEM CAT LENG usb user Response 3 3 Create a new subdirectory for mass memory storage in the specified directory MMEM MDIR usb user new 4 Copy the file state to a new file MMEM COPY var user state savrcltxt usb user new 5 Rename the...

Страница 244: ...the directory are listed with their file name format and size in bytes Example See Working with Files and Directories on page 226 Usage Query only MMEMory CATalog LENGth Returns the number of files in the current or in the specified directory Return values Length path String parameter to specify the directory If the direcory is omitted the command queries the content of the current directory queri...

Страница 245: ...e_destination msus_destination file_destination string String parameter to specify the name of the new file If no file des tination is specified the source file is copied to the current direco try queried with the MMEM CDIR command Files which already exist with the same name in the destination directory are overwrit ten without an error message Example See Working with Files and Directories on pa...

Страница 246: ...rm of a binary block MMEMory DCATalog Returns the subdirectories of the current or specified directory Query parameters path_name String parameter to specify the directory If the direcory is omitted the command queries the content of the current directory queried with MMEM CDIR command Return values Dcatalog file_entry Names of the subdirectories separated by colons The first two strings are relat...

Страница 247: ...r to be used with the RCL command e g RCL 4 file_name String parameter to specify the file name with extension savrcltxt Example See Storing and Loading Current Settings on page 225 Usage Setting only MMEMory MDIRectory directory_name Creates a new subdirectory for mass memory storage in the specified directory If no directory is specified a subdirectory is created in the default directory This co...

Страница 248: ...ystem If no directory is specified the subdirectory with the specified name is deleted in the default directory Setting parameters Rdirectory string String parameter to specify the directory to be deleted Example See Working with Files and Directories on page 226 Usage Setting only MMEMory STORe STATe sav_rcl_state_number file_name Stores the current instrument setting in the specified file The in...

Страница 249: ...UTPut hw STATe PON 234 OUTPut hw AFIXed RANGe LOWer The command queries the minimum level which can be set without the attenuator being adjusted Attenuator FIXed Return values Lower float Default unit dBm Example OUTP AFIX RANG LOW queries the minimum level for the FIXed setting Example Response 50 The minimum level is 50 dBm Usage Query only OUTPut hw AFIXed RANGe UPPer The command queries the ma...

Страница 250: ...put OUTP AMOD FIX sets the fixed mode with uninterrupted level for RF output OUTPut hw IMPedance The command queries the impedance of the RF outputs This permits converting the output level between units V and W The impedances cannot be changed Return values Impedance G50 G1K G10K Default unit Ohm Example OUTP IMP queries the impedance of RF output Response 50 the impedance is 50 ohms Usage Query ...

Страница 251: ...OFF The output is deactivated when the instrument is switched on UNCHanged When the instrument is switched on the output remains in the same state as it was when the instrument was switched off Example OUTP PON OFF RF output A is deactivated when the instrument is switched on 7 11 SENSe READ and INITiate Subsystems The SENSe subsystem contains the commands for configuring the power measurements wi...

Страница 252: ... on and off Switching the local state off enhances the measure ment performance during remote control The remote measurement is triggered by the READ query command READ ch POWer which 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 s...

Страница 253: ... 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 SENSe ch POWer DISPlay PERManent STATe State The command switches on and off the permanent indication of the power measurement result in the upper right corn...

Страница 254: ...se 1024 Usage Query only SENSe ch POWer FILTer LENGth USER User The command selects the filter length for user filter mode SENSe POWer FILTer TYPE USER As the filter length works as a multiplier for the time window a constant filter length results in a constant measurement time Values 1 and 2 n are setable The time window is fixed to 20 ms Parameters User float Range 1 to 65536 RST 1 Example SENS ...

Страница 255: ...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 SENS1 FILT NSR MTIM 5 limits the settling time to 5 seconds SENSe ch POWer FILTer SONCe The command activates the search for the optimum filter length for the current measure ment conditions The found filter length can be retrieved with com mand SE...

Страница 256: ...iations does not exceed the speci fied noise content The desired noise content is entered with com mand SENSe FILTer NSRatio To avoid very long settling times when the power is low the aver aging factor can be limited with the Timeout parameter command SENSe FILTer NSRatio MTIMe RST AUTO Example SENS FILT TYPE AUTO selects automatic filter selection SENSe ch POWer FREQuency Frequency The command s...

Страница 257: ...B SENS1 POW OFFS STAT ON a level offset of 0 4 dB is added to the measured value SENSe ch POWer SNUMber The command queries the serial number of the sensor Return values Snumber string Example SENS SNUM queries the serial number Usage Query only SENSe ch POWer SOURce Source The command selects the signal source for the measurement Parameters Source A B USER RST A Example SENS SOUR A selects the RF...

Страница 258: ...he software version of the connected R S NRP power sensor Return values Sversion string Example SENS POW SVER queries the software version of the R S NRP power sensor Usage Query only SENSe ch POWer TYPE The command queries the type of sensor The type is automatically detected Return values Type string Example SENS TYPE queries the type of sensor connected to the POWER SENSOR connector Response NR...

Страница 259: ...returned by command READ READ2 Response 7 34 7 34 dBm are measured by sensor 2 7 12 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 be omitted SOURce AM Subsystem 243 SOURce CORRection Subsystem 245 SOURce FM Subsystem 253 SOURce FREQuency Subsystem 255 SOURce INPut ...

Страница 260: ...he modulation depth of the amplitude modulation in percent The modulation depth is limited by the maximum peak envelope power PEP Parameters Depth float Range 0 to 100 Increment See data sheet RST 30 Default unit PCT Example AM 15PCT sets the AM modulation depth to 15 percent Usage SCPI confirmed SOURce hw AM EXTernal COUPling Coupling The command selects the coupling mode for the external modulat...

Страница 261: ... modulation input Response 50 since the voltage value for full modulation is 1V the resulting sen sitivity is precisely 50 V Usage Query only SCPI confirmed SOURce hw AM SOURce Source The command selects the modulation source for amplitude modulation Parameters Source INT EXT INT INT is the internal modulation source which is selected with com mand AM SOURce INTernal and configured in the SOURce L...

Страница 262: ...he 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 245 SOURce h...

Страница 263: ...o 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 Default unit Hz Example CORR CSET var Lists ucor ucor1 selects the table ucor1 CORR CSET DATA FREQ 100MHz 102MHz 103MHz enters the frequency value in the table ucor1 SOURce hw CORRection CSET DATA FR...

Страница 264: ...cted table The numerical suffix at SOURce must not be used for this command Return values Points float Example CORR CSET var Lists ucor ucor1 selects the table ucor1 CORR CSET DATA POW POIN queries the number of level values in the table ucor1 Response 440 the table ucor1 contains 440 level values Usage Query only SOURce hw CORRection CSET DATA SENSor ch POWer SONCe The command fills the selected ...

Страница 265: ...M CDIR var Lists ucor selects the directory for the user correction files CORR CSET DEL UCOR1 deletes the table ucor1 Usage Event SOURce hw CORRection DEXChange AFILe CATalog The command 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 extensions txt or csv in a directory o...

Страница 266: ...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 command 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 speci fied directory Parameters Select ascii file name Example CORR DEXC MODE IMP selects that AS...

Страница 267: ...I 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 ucor 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 frequency and level values are se...

Страница 268: ...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 import ucor csv selects that ASCII file ucor csv is imported CORR DEXC SEL var user ucor import ucor_imp selects that the ASCII...

Страница 269: ...directory of the user s choice The directory applicable to the commands is defined with the command MMEMory CDIR A path can also be specified in command SOUR CORR CSET SEL in which case the files in the specified directory are selected Parameters Select table name Example CORR CSET var Lists ucor ucor1 selects the table ucor1 CORR ON activates level correction Correction is performed using the tab...

Страница 270: ...ency Modulation FM on page 149 SOURce hw FM DEViation 253 SOURce hw FM EXTernal COUPling 253 SOURce hw FM EXTernal DEViation 254 SOURce hw FM SENSitivity 254 SOURce hw FM SOURce 255 SOURce hw FM STATe 255 SOURce hw FM DEViation Deviation The command sets the modulation deviation of the frequency modulation in Hz The maximal deviation depends on the RF frequency set and the selected modulation mode...

Страница 271: ...meters Deviation float Range 0 to 40 MHz RST 1kHz Default unit Hz Example FM EXT DEV 3kHz sets an external modulation depth of 3 kHz Usage SCPI confirmed SOURce hw FM SENSitivity The command is only effective if the external modulation source is selected SOUR FM SOUR EXT The returned value depends on the modulation deviation set ting SOUR FM DEViation This value is assigned to the voltage value fo...

Страница 272: ...confirmed SOURce hw FM STATe State The command activates deactivates frequency modulation Activation of FM FM STAT ON deactivates phase modulation Parameters State 0 1 OFF ON RST OFF Example FM STAT ON Activates FM modulation Usage SCPI confirmed 7 12 4 SOURce FREQuency Subsystem This subsystem contains the commands used to define the frequency settings for the RF sources and sweeps SOURce hw FREQ...

Страница 273: ...ing on model Increment 0 01Hz RST 300MHz Default unit Hz 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 range to 300 MHz to 500 MHz Usage SCPI confirmed SOURce hw FREQuency CW FIXed Fixed The command sets the frequency of the RF output signal for CW mode SOURce FREQuency MODE CW In Sweep mode SOURc...

Страница 274: ...t loaded when a stored instrument config uration is loaded The current frequency is retained RST no default Example FREQ RCL INCL The stored frequency is set if the Recall command is called Usage SCPI confirmed SOURce hw FREQuency MANual Manual In Sweep mode SOUR FREQ MODE SWE the command sets the frequency for the next sweep step in the Step sweep mode SOUR SWE MODE MAN Here only frequency values...

Страница 275: ...command sets the instrument operating mode and therefore also the commands used to set the output frequency Parameters Mode CW FIXed SWEep CW FIXed The instrument operates in fixed frequency mode CW and FIXed are synonyms The output frequency is set with SOURce FREQuency CW FIXed SWEep The instrument operates in SWEep mode The frequency is set using the commands SOURce FREQuency STARt STOP CENTer ...

Страница 276: ... not change the RF output frequency but rather the query value of SOURce FREQuency Parameters Offset float Range 67GHz to 67GHz Increment 0 01Hz RST 0Hz Default unit Hz Example FREQ OFFS 500kHz sets the frequency offset to 500 kHz Usage SCPI confirmed SOURce hw FREQuency SPAN Span This command specifies the span for the sweep This setting in combination with the center frequency setting SOUR FREQ ...

Страница 277: ...r the OFFSet value is also taken into consideration with this command The specified value range is therefore only effective if OFFSet is set to 0 The value range for other OFFset values can be calculated using the following formula 300 kHz OFFSet RFmax OFFSet Parameters Start float Range 300kHz to RFmax Increment 0 01Hz RST 100MHz Example FREQ STARt 1 MHz sets the start frequency for the frequency...

Страница 278: ...mmand sets the step width for the frequency setting if the frequency values UP DOWN are used and variation mode SOUR FREQ STEP MODE USER is selected The command is linked to Variation Step for manual control i e the command also sets the step width of the rotary knob for Variation Active on Parameters Increment float Range 0Hz to RFmax 100kHz Increment 0 01Hz RST 1MHz Example FREQ STEP 50 kHz sets...

Страница 279: ...ODext IMPedance Impedance This command sets the impedance for external feed via the MOD EXT input Parameters Impedance HIGH G600 HIGH 100 k0hm to ground RST HIGH Example INP MOD IMP HIGH the EXT MOD input is set to 100 kOhm to ground SOURce INPut TRIGger SLOPe Slope Sets the polarity of the active slope of an externally applied trigger signal at the trigger input BNC connector at the rear of the i...

Страница 280: ...e LFOutput FREQuency MODE 264 SOURce LFOutput FREQuency STARt 265 SOURce LFOutput FREQuency STOP 265 SOURce LFOutput STATe 266 SOURce LFOutput SWEep FREQuency DWELl 266 SOURce LFOutput SWEep FREQuency EXECute 266 SOURce LFOutput SWEep FREQuency MODE 266 SOURce LFOutput SWEep FREQuency POINts 267 SOURce LFOutput SWEep FREQuency SHAPe 268 SOURce LFOutput SWEep FREQuency SPACing 268 SOURce LFOutput S...

Страница 281: ...ple 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 SOURce LFOutput FREQuency MODE Mode The command sets the instrument operating mode and therefore also the comm...

Страница 282: ... i e the sweep is triggered by the command LFOutput SWEep EXECute or TRG LFO FREQ STAR 100 kHz sets the start frequency for the LF sweep to 100 kHz LFO FREQ STOP 200 kHz sets the stop frequency of the LF sweep to 200 kHz LFO FREQ MODE SWE sets the LF sweep mode LFO SWE EXEC a one off LF sweep from 100 kHz to 200 kHz is performed The linear step width is 1 kHz with a dwell time of 15 ms preset valu...

Страница 283: ...FF Parameters Dwell float Range 10 0E 3 to 100 Increment 100 0E 6 RST 10 0E 3 Default unit s Example LFO SWE DWEL 20 ms sets a dwell time of 20 ms SOURce LFOutput SWEep FREQuency EXECute The command immediately starts an LF sweep The command is only valid for sweep mode Single SOURce LFOutput SWEep FREQuency MODE SINGle The command corresponds to the manual control Execute Single Sweep LF Sweep Ex...

Страница 284: ...G which each sent SOURce LFOutput FREQuency MANual command irre spective the value entered there STEP Each trigger triggers one sweep step only The frequency increa ses by the value entered under SOURce LFOutput SWEep STEP RST AUTO Example LFO SWE MODE AUTO selects Mode Auto SOURce LFOutput SWEep FREQuency POINts Points The command sets the number of steps in an LF sweep The command is linked to t...

Страница 285: ...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 LFO SWE SHAP TRI selects the sweep cycle with alternating ascending and descend ing sweep directions SOURce LFOutput SWEep FREQuency SPACing Spacing The command se...

Страница 286: ... using the following formula New frequency Old frequency STEP LOG x Old frequency STEP LOG therefore gives the fraction of the old frequency The frequency is increased by this fraction for the next sweep step Usually STEP LOG is given in percent whereby the suffix PCT must always be used The command is linked to the command LFOutput SWEep FREQuency POINts as follows for logarithmic sweeps and STAR...

Страница 287: ...R MOD ALL STAT ON restores the status that was active before the last switch off MOD OFF is displayed in the info line of the header next to the Level field Parameters State 0 1 OFF ON Example MOD STAT OFF switches off all modulations 7 12 8 SOURce PGEN Subsystem This subsystem contains the commands for setting the pulse generator SOURce hw PGEN STATe 270 SOURce hw PGEN STATe State The command act...

Страница 288: ... commands for adjusting the phase of the RF output signal relative to a reference signal of the same frequency SOURce hw PHASe 271 SOURce hw PHASe REFerence 271 SOURce hw PHASe Phase The command specifies the phase variation relative to the current phase The variation can be specified in RADians Parameters Phase float Range 359 9 to 359 9 Increment 0 1 deg RST 0 0 deg Example PHAS 2DEG changes the...

Страница 289: ...tion Deviation The command sets the modulation deviation of the phase modulation in RAD The max imal deviation depends on the RF frequency set and the selected modulation mode see data sheet The deviation of the internal source must not exceed the deviation of the external source in case of modulation source Int Ext PM SOURce INT EXT Parameters Deviation float Range 0 to 20 Increment See data shee...

Страница 290: ...Range 0 to 20 Increment See data sheet Default unit RAD Example PM 5 sets the PM modulation deviation for external phase modulation of 5 RAD Usage SCPI confirmed SOURce hw PM SENSitivity The command queries the input sensitivity of the EXT MOD input in RAD V The com mand is only effective if the external modulation source is selected SOUR PM SOUR EXT The returned value depends on the modulation de...

Страница 291: ...mmand activates deactivates phase modulation Activation of phase modulation deactivates frequency modulation Parameters State 0 1 OFF ON RST OFF Example PM STAT ON activates PM modulation Usage SCPI confirmed 7 12 11 SOURce POWer Subsystem This subsystem contains the commands for setting the output level level control and level correction of the RF signal Other units can also be used instead of dB...

Страница 292: ...h becomes active when automatic level control is deactivated ALC Off Parameters OffMode SHOLd SHOLd Level control is activated briefly if the level or frequency changes ALC Off Sample Hold RST SHOLd Example POW ALC OFF deactivates automatic level control for RF output A POW ALC OMOD SHOL level control is briefly activated if the frequency or level changes SOURce hw POWer ALC SONCe The command brie...

Страница 293: ...meters Mode UNCHanged FATTenuated UNCHanged Freezes the setting of the attenuator when RF is switched off The attenuator is only activated when RF is switched on This setting recommended if a constant VSWR Voltage Standing Wave Ratio is required FATTenuated Sets attenuation to maximum when the RF signal is switched off This setting is recommended for applications that require a high level of noise...

Страница 294: ...at output A to 15 dBm Usage SCPI confirmed SOURce hw POWer LEVel IMMediate OFFSet Offset Note The level offset is also effective for level sweeps The command specifies the constant level offset of a downstream attenuator amplifier If a level offset is entered the level entered with POWer no longer corresponds to the RF output level The following correlation applies POWer RF output level POWer OFFS...

Страница 295: ...figuration is loaded The current level is retained RST no default Example POW RCL INCL the stored level is set if the Recall command is called Usage SCPI confirmed SOURce hw POWer LIMit AMPLitude Amplitude The command limits the maximum RF output level in CW and SWEEP mode It does not influence the Level display or the response to the POW query command The value is not affected by an instrument pr...

Страница 296: ...UR POW MODE SWE the command sets the level for the next sweep step in the Step sweep mode SOUR SWE POW MODE MAN Here only level values between the settings SOUR POW STAR and SOUR POW STOP are per mitted Each sweep step is triggered by a separate SOUR POW 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 specifie...

Страница 297: ... FIXed SWEep CW FIXed The instrument operates at a constant level CW and FIXed are synonyms The output level is set with SOURce POWer SWEep The instrument operates in SWEep mode The level is set using the commands SOURce POWer STARt STOP MANual RST CW Example POW MODE SWEep sets the SWEep mode The settings under SOURce POW STARt STOP MANual become effective Usage SCPI confirmed SOURce hw POWer POW...

Страница 298: ...et to 0 The value range for other OFFset values can be calculated using the following formula Minimum level OFFSet Maximum level OFFSet Parameters Start float Minimum level Maximum level The value range for the level setting varies according to the instru ment model The values are given in the data sheet Increment 0 01 dB RST 30 dBm Default unit dBm Example POW STAR 20 dBm sets the start level for...

Страница 299: ...R RST DECimal Example POW STEP 2 sets the step width for the level setting to 2 dB POW STEP MODE USER actives this step width for level variation with the rotary knob man ual control and with level values UP DOWN remote control SOURce hw POWer STOP Stop The command sets the stop level in Sweep mode As with the Level value entered in the RF Level menu the OFFSet value is also taken into considerati...

Страница 300: ...ELay 283 SOURce hw PULM DOUBle DELay 283 SOURce hw PULM DOUBle STATe 284 SOURce hw PULM DOUBle WIDTh 284 SOURce hw PULM MODE 284 SOURce hw PULM PERiod 285 SOURce hw PULM POLarity 285 SOURce hw PULM SOURce 285 SOURce hw PULM STATe 286 SOURce hw PULM TRIGger EXTernal GATE POLarity 286 SOURce hw PULM TRIGger EXTernal SLOPe 286 SOURce hw PULM TRIGger MODE 287 SOURce hw PULM WIDTh 287 SOURce hw PULM DE...

Страница 301: ...ne pulse period Parameters State 0 1 OFF ON RST OFF Example PULM DOUB STAT ON double pulse mode is enabled SOURce hw PULM DOUBle WIDTh Width The command sets the width of the second pulse in case of double pulse generation Parameters Width float Range 5ns to 100s Increment 20ns RST 1ms Default unit ns Example PULM DOUB WIDT 33 us sets a width of 33 us for the second pulse SOURce hw PULM MODE Mode ...

Страница 302: ...ER 220 us the pulse period is 220 us SOURce hw PULM POLarity Polarity The command sets the polarity between modulating and modulated signal This com mand is only effective for an external modulation signal Parameters Polarity NORMal INVerted NORMal The RF signal is suppressed during the pulse pause INVerted The RF signal is suppressed during the pulse RST NORMal Example PULM SOUR EXT selects the e...

Страница 303: ...CPI confirmed SOURce hw PULM STATe State The command activates deactivates the pulse modulation Parameters State 0 1 OFF ON RST OFF Example PULM STAT ON activates pulse modulation with the modulation source selected under SOURce PULM SOURce Usage SCPI confirmed SOURce hw PULM TRIGger EXTernal GATE POLarity Polarity Selects the polarity of the Gate signal The signal is supplied via the PULSE EXT co...

Страница 304: ... via the PULSE EXT connector EGATe The pulse modulation is gated by an external gate signal The sig nal is supplied via the PULSE EXT connector RST AUTO Example PULM TRIG MODE EXT selects triggering by an external trigger event Usage SCPI confirmed SOURce hw PULM WIDTh Width The command sets the width of the generated pulse The width determines the pulse length The pulse width must be at least 20n...

Страница 305: ...MHz informs the instrument that the external reference frequency is 5MHz Usage SCPI confirmed SOURce ROSCillator EXTernal RFOFf STATe State The command determines if the RF output is switched off in case of a missing external reference signal for selection external source If enabled this setting ensures that no improper RF signal due to the missing external reference signal is output and used for ...

Страница 306: ... 1 OFF ON RST 0 Example ROSC SOUR INT selects the internal source ROSC ADJ ON activates use of a user defined adjustment value ROSC ADJ VAL 1400 sets the adjustment value to 1400 SOURce ROSCillator SOURce Source The command selects between internal and external reference frequency Parameters Source INTernal EXTernal INTernal The internal reference oscillator is used EXTernal An external reference ...

Страница 307: ... FREQuency DWELl 12 ms 4 Select the trigger mode TRIGger FSWeep SOURce SINGle 5 Select the sweep mode and activate the sweep SOURce SWEep FREQuency MODE AUTO SOURce FREQuency MODE SWEep 6 Trigger the sweep SOURce SWEep FREQuency EXECute It is recommended to switch off the GUI Update for optimum sweep performance espe cially with short dwell times SYSTem DISPlay UPDate OFF SOURce hw SWEep FREQuency...

Страница 308: ...at Range 10 0E 3 to 100 Increment 100 0E 6 RST 10 0E 3 Default unit s Example SWE DWEL 12 ms sets a dwell time of 12 ms for a frequency sweep at the RF output SOURce hw SWEep FREQuency EXECute The command triggers a sweep The command is only valid for sweep mode Single SOURce SWEep FREQuency MODE SINGle The command corresponds to the manual control command Execute Single Sweep Example SWE FREQ EXE...

Страница 309: ...ch tcrigger triggers one sweep step only Mode Single Step The frequency increases by the value entered under SOUR SWE FREQ STEP LIN linear spacing or STEP LOG logarithmic spacing RST AUTO Example SWE MODE AUTO selects Mode Auto for a frequency sweep at the RF output SOURce hw SWEep FREQuency POINts Points The command sets the number of steps in an RF sweep The command is linked to the command SWEe...

Страница 310: ...WTooth 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 TRI selects the sweep cyc...

Страница 311: ...uency sweep at the RF out put SOURce hw SWEep FREQuency STEP LINear Linear The command sets the step width for linear sweeps This command is linked to the command SWEep FREQuency POINts as follows POINts SPAN STEP LIN 1 If STEP LIN changes the value of POINTs is adjusted The STARt and STOP value is retained The keywords FREQuency and LINear can be omitted see example The command is then SCPI compl...

Страница 312: ... LOG changes the value of POINTs is adjusted The STARt and STOP value is retained Parameters Logarithmic float Range 0 01 to 9999 Increment 0 01 PCT RST 1 PCT Example FREQ STAR 1GHz sets the start frequency to 1 GHz FREQ STOP 5GHz sets the stop frequency to 5 GHz SWE SPAC LOG sets logarithmic sweep spacing SWE STEP LOG 10PCT sets the step width for logarithmic sweep spacing to 10 of the previous f...

Страница 313: ... varying the Current Level value using the rotary knob under manual control or by means of a POW MAN command under remote control With manual control the level increases or decreases depending on the direction of the rotary encoder by the value specified under SOUR SWE POW STEP With remote control the level increases by the value specified under SWEep POW STEP which each sent POW MAN command irres...

Страница 314: ...ooth TRIangle One sweep runs from start to stop level and back i e the shape of the sweep resembles a triangle Each subsequent sweep starts at the start level again RST SAWTooth Example SOUR SWE POW SHAP TRI selects the sweep cycle with alternating ascending and descend ing sweep directions SOURce hw SWEep POWer SPACing MODE The command queries the sweep spacing The sweep spacing for level sweeps ...

Страница 315: ... resets all active sweeps to the starting point Example SWE RES resets all active sweeps to the starting point 7 13 STATus Subsystem This system contains the commands for the status reporting system RST on page 208 has no effect on the status registers Queries return the current value of the respective register which permits a check of the device status A decimal value between 0 and 32767 215 1 is...

Страница 316: ...NABle Enable The command sets the bits of the ENABle part of the STATus OPERation register This setting determines which events of the Status Event part are 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 Usage SCPI confirmed STATus OPERation E...

Страница 317: ...ATus OPERation register If a bit is set a transition from 0 to 1 in the condition part causes an entry to be made in the EVENt part of the register A new event in the hardware is thus registered e g the start of an adjustment Parameters Ptransition string Example STAT OPER PTR 32767 all transitions from 0 to 1 in the condition part of the Status Oper ation register cause an entry to be made in the...

Страница 318: ...ed for the sum bit in the status byte These events can be used for a service request Parameters Enable string Example STAT OPER ENAB 1 problems when performing an adjustment cause an entry to be made in the sum bit Usage SCPI confirmed STATus QUEStionable EVENt EVENt The command queries the content of the EVENt part of the STATus QUEStionable register This part contains information on the actions ...

Страница 319: ...s Ques tionable register cause an entry to be made in the EVENt part Usage SCPI confirmed STATus QUEue NEXT The command queries the oldest entry in the error queue and then deletes it Positive error numbers denote device specific errors and negative error numbers denote error messages defined by SCPI If the error queue is empty 0 No error is returned The command is identical to SYSTem ERRor Return...

Страница 320: ... COMMunicate SERial SBITs 308 SYSTem COMMunicate SOCKet RESource 308 SYSTem DATE 308 SYSTem DISPlay UPDate 308 SYSTem DLOCk 308 SYSTem ERRor ALL 309 SYSTem ERRor CODE ALL 309 SYSTem ERRor CODE NEXT 310 SYSTem ERRor COUNt 310 SYSTem ERRor NEXT 310 SYSTem IDENtification 311 SYSTem IRESponse 311 SYSTem KLOCk 312 SYSTem LANGuage 312 SYSTem ORESponse 312 SYSTem PROTect ch STATe 313 SYSTem SERRor 313 SY...

Страница 321: ...neously with the line mes sage EOI is accepted as the terminator SYSTem COMMunicate GPIB SELF ADDRess Address The command sets the GPIB address Parameters Address float Range 1 to 30 RST 28 Example SYST COMM GPIB ADDR 14 sets GPIB address Usage SCPI confirmed SYSTem COMMunicate NETWork COMMon DOMain Domain The command enters the domain of the network Parameters Domain string Example SYST COMM NETW...

Страница 322: ...y is only activated after sending command SYST COMM NETW IPAD SET Parameters Mode AUTO STATic AUTO The IP address is assigned automatically The network used must support automatic assignment of address DHCP in order to use this function STATic The IP address is assigned manually RST AUTO Example SYST COMM NETW IPAD MODE AUTO the IP address is assigned automatically DHCP SYST COMM NETW IPAD SET ON ...

Страница 323: ...fter sending com mand SYST COMM NETW IPAD SET Parameters Mask string Example SYST COMM NETW SUBN MASK 255 255 0 0 enters the Subnet mask SYST COMM NETW IPAD SET activates all changes of the IP address settings SYSTem COMMunicate NETWork RESource Resource The command queries the visa resource string This string is used for remote control of the instrument Parameters Resource string Example SYST COM...

Страница 324: ...e visa resource string for the serial remote control interface This string is used for remote control of the instrument Return values Resource string Example SYST COMM SER RES queries the VISA resource string Response ASRL1 INSTR Usage Query only SYSTem COMMunicate SERial BAUD Baud The command enters the baudrate for the serial remote control interface Parameters Baud 2400 4800 9600 19200 38400 57...

Страница 325: ...for the instrument internal calendar This parameter is protected in order to prevent accidental changes It can be accessed with protection level 1 see SYSTem PROTect ch STATe on page 313 Parameters Date year month day Example SYST DATE Response 2011 05 01 it is the 1st of May in 2011 SYSTem DISPlay UPDate Update The command switches the update of the display on off A switchover from remote control...

Страница 326: ... value Negative error numbers denote error messages defined by SCPI Example SYST ERR ALL queries all entries in the error queue Response 0 no error No errors have occurred since the error queue was last read out Usage Query only SYSTem ERRor CODE ALL The command queries all entries in the error queue and then deletes them Only the error numbers are returned and not the entire error text Return val...

Страница 327: ... since the error queue was last read out Usage Query only SYSTem ERRor COUNt The command queries the number of entries in the error queue If the error queue is empty 0 is returned Return values Count string Example SYST ERR COUN queries the number of entries in the error queue Response 1 One error has occurred since the error queue was last read out Usage Query only SYSTem ERRor NEXT The command q...

Страница 328: ...mple SYST IDEN USER selects the user defined identification string SYST IRES Test Device defines the identification string test device IDN Response test device selects command set of the HP generator The R S SMC s com mand set is disabled To return to the SCPI command set of the R S SMC use the HP command EX SYSTem IRESponse Iresponse The command defines the identification string for selection use...

Страница 329: ... Application Note is also provided on the user documentation CD ROM included in delivery Note While working in a emulation mode the instrument s specific command set is dis abled i e the SCPI command SYST LANG will be discarded The return to the SCPI command set of the R S SMC can only be performed by using the appropriate command of the selected command set For example the HP command EX returns t...

Страница 330: ...ssword must be entered to deactivate the protection level The password for the first level is 123456 This protection level can be used to lock out internal adjustments Example SYST PROT1 ON activates protection level 1 Internal adjustments are only possible after deactivating the lock out SYST PROT1 OFF 123456 deactivates protection level 1 Internal adjustments are enabled again Usage SCPI confirm...

Страница 331: ...YSTem PROTect ch STATe on page 313 Parameters Time 0 23 0 59 0 59 Example SYST TIME Response 12 0 0 it is precisely 12 pm SYSTem VERSion The command queries the SCPI version with which the instrument complies Return values Version string Example SYST VERS queries the SCPI version Response 1996 The instrument complies with the version from 1996 Usage Query only 7 15 TEST Subsystem The TEST system c...

Страница 332: ...result is queried with the command TEST hw ALL RESult on page 315 Example TEST ALL STAR Starts the selftest Usage Event TEST hw ALL RESult Queries the result of the performed selftest command TEST hw ALL STARt on page 315 Return values All 0 1 Example TEST ALL Starts the selftest TEST ALL RES Response 0 on success 1 on fail Usage Query only TEST hw DIRect HW_assembly subadress hex data string TEST...

Страница 333: ...een the manual and remote control R S name SCPI name Command under manual control AUTO IMMediate Auto mode SINGle BUS Single mode EXTernal EXTernal Ext Single and Ext Step mode Use command LFO SWEep MODE to select between the two sweep modes EAUTo Ext Start Stop mode TRIGger0 SWEep SOURce 316 TRIGger hw LFFSweep SOURce 316 TRIGger hw FSWeep IMMediate 317 TRIGger hw FSWeep SOURce 317 TRIGger hw PSW...

Страница 334: ...sweep 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 SINGle Example TRIG LFFS SOUR EXT selects triggering with an external trigger TRIGger hw FSWeep IMMediate The command immediately starts an RF frequency sweep cycle The command is only effective for sweep mode Sing...

Страница 335: ... SOURce SWEep FREQuency MODE AUTO EXTernal The sweep is triggered externally via the INST TRIG connector EAUTo The sweep is triggered externally via the INST TRIG connector As soon as one sweep 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 SINGle Example TRIG FSW SO...

Страница 336: ...ommands 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 INST TRIG connector EAUTo The sweep is triggered externally via the INST TRIG connector As soon as one sweep is finished the next sweep is started A second trigger event stops the sweep at the current frequency a thi...

Страница 337: ... 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 MODE is set to STEP one step is exe cuted The mode has to be set to AUTO EXTernal The sweep is triggered externally via the INST TRIG connector EAUTo The sweep is triggered externally via the INST TRIG connector As soon as one sweep is finished the...

Страница 338: ...it and the display Parameters Angle DEGree DEGRee RADian RST RADian Example UNIT ANGL DEG sets default unit DEG for all commands which determine angle values UNIT POWer Power The command defines the default unit for power It is valid for all commands which deter mine power values It does not influence the manual control parameter unit and the dis play Parameters Power V DBUV DBM RST DBM Example UN...

Страница 339: ......

Страница 340: ...s when exchanging modules or ordering spares The order no for spare parts is included in the service man ual The service manual includes further information particularly on troubleshooting repair exchange of modules and alignment The address of our support center and a list of all Rohde Schwarz service centers can be found at the beginning of this manual 8 1 Storing and Packing The storage tempera...

Страница 341: ......

Страница 342: ...tion gives the user an overview of the main operating states and settings of the instru ment The states are indicated for information only and do not necessitate 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 9 1 1 Status information displayed between the frequency and level fields This chapter g...

Страница 343: ...vel 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 the RF output level according to the set offset However the level entered and displayed in the Level dialog of the RF function block always corresponds to the RF output level Any level offset is not taken into consideration The correlation i...

Страница 344: ...nformation displayed in the Info line This chapter gives an overview of the status messages displayed in the Info line RFSweep LevelSweep LFSweep The indicated sweep is enabled ALC On Auto S H The status of the automatic level control is indicated ON automatic level control permanently on Auto automatic level control is automatically adapted to the operating states S H automatic level control off ...

Страница 345: ...of modulation or on illegal entries that are not accepted by the instrument e g range violations They are displayed in the info line on a yellow background They are displayed on top of status information or permanent messages Volatile messages do not normally demand user actions and disappear automatically after a brief period of time They are stored in the history however SCPI command SYSTem ERRo...

Страница 346: ...xternal in the Setup Reference Oscillator dialog Change setting to internal if no appropriate external source is available 140 This modulation forces other modulations off A modulation has been switched on which cannot be used at the same time as an already active modulation The previous modulation has been switched off Example Enabling FM modulation switches PM modulation off 180 Adjustment faile...

Страница 347: ... for waveform list files is wv It is not pos sible to enter another file extension when selecting a list Check the selected list type 460 Cannot open file The selected file can not be opened Check the path and file name 461 Cannot write file The file can not be written Check if the file is read only 462 Cannot read file The file can not be read Check if the file contents are com patible with the f...

Страница 348: ...k Start Guide For specifications refer to the data sheet A 1 GPIB Bus Interface Pin assignment Fig 1 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 significant bit D7 the most significant bit Control bus with five lines IFC Interface Clear active LOW resets the interfaces of the ...

Страница 349: ...nt connected is accepting the data on the data bus Interface Functions Instruments which can be controlled via GPIB bus can be equipped with different interface functions The interface function for the R S SMC are listed in the following table Table 1 1 GPIB bus interface functions Control character Interface function SH1 Handshake source function source handshake full capability AH1 Handshake sin...

Страница 350: ...hw LEVel MEASure 212 DIAGnostic INFO OTIMe 213 DIAGnostic INFO POCount 214 DIAGnostic hw BGINfo 213 DIAGnostic hw BGINfo CATalog 213 DISPlay PSAVe HOLDoff 214 DISPlay PSAVe STATe 214 FORMat BORDer 215 FORMat SREGister 216 FORMat DATA 215 HCOPy DATA 217 HCOPy DEVice 217 HCOPy DEVice LANGuage 217 HCOPy FILE NAME 218 HCOPy FILE NAME AUTO 218 HCOPy FILE NAME AUTO DIRectory 219 HCOPy FILE NAME AUTO DIR...

Страница 351: ... RDIRectory 231 MMEMory STORe STATe 231 OUTPut hw AFIXed RANGe LOWer 232 OUTPut hw AFIXed RANGe UPPer 232 OUTPut hw AMODe 233 OUTPut hw IMPedance 233 OUTPut hw PROTection CLEar 233 OUTPut hw PROTection TRIPped 233 OUTPut hw STATe 234 OUTPut hw STATe PON 234 SOURce hw PRESet 210 SYSTem BEEPer STATe 303 SYSTem COMMunicate GPIB LTERminator 303 SYSTem COMMunicate GPIB RESource 307 SYSTem COMMunicate G...

Страница 352: ...weep SOURce 316 TRIGger hw PSWeep SOURce 319 TRIGger hw PSWeep IMMediate 318 TRIGger hw SWEep SOURce 320 TRIGger hw SWEep IMMediate 319 UNIT ANGLe 321 UNIT POWer 321 INITiate ch POWer CONTinuous 235 READ ch POWer 235 SENSe ch UNIT POWer 242 SENSe ch POWer CORRection SPDevice STATe 236 SENSe ch POWer DISPlay PERManent PRIority 236 SENSe ch POWer DISPlay PERManent STATe 236 SENSe ch POWer FILTer LEN...

Страница 353: ...ce 244 SOURce hw AM STATe 244 SOURce hw AM DEPTh 243 SOURce hw CORRection CSET DATA FREQuency 246 SOURce hw CORRection CSET DATA FREQuency POINts 246 SOURce hw CORRection CSET DATA POWer 247 SOURce hw CORRection CSET DATA POWer POINts 247 SOURce hw CORRection CSET DATA SENSor ch POWer SONCe 247 SOURce hw CORRection CSET SELect 252 SOURce hw CORRection DEXChange AFILe CATalog 248 SOURce hw CORRecti...

Страница 354: ...w PM EXTernal DEViation 273 SOURce hw PM SENSitivity 273 SOURce hw PM SOURce 274 SOURce hw PM STATe 274 SOURce hw PM DEViation 272 SOURce hw POWer ALC OMODe 275 SOURce hw POWer ALC SONCe 275 SOURce hw POWer ALC STATe 275 SOURce hw POWer ATTenuation RFOFf MODE 276 SOURce hw POWer LIMit AMPLitude 278 SOURce hw POWer LMODe 279 SOURce hw POWer MANual 279 SOURce hw POWer MODE 280 SOURce hw POWer POWer ...

Страница 355: ...cy STEP LOGarithmic 295 SOURce hw SWEep FREQuency STEP LINear 294 SOURce CORRection CSET CATalog 245 SOURce CORRection CSET DELete 248 SOURce INPut TRIGger SLOPe 262 SOURce LFOutput FREQuency MANual 264 SOURce LFOutput FREQuency MODE 264 SOURce LFOutput FREQuency STARt 265 SOURce LFOutput FREQuency STOP 265 SOURce LFOutput SWEep FREQuency DWELl 266 SOURce LFOutput SWEep FREQuency EXECute 266 SOURc...

Страница 356: ...l 124 275 ALC Auto 327 ALC On 124 327 ALC S H 327 ALC Table 327 AM Depth 148 243 AM External Coupling 149 243 AM Frequency 263 AM Sensitivity 148 244 AM Source 148 244 AM State 148 244 Annotation Amplitude 94 Annotation Frequency 94 Applications of the R S SMC 43 Architecture of the instrument 41 Arrow keys 17 Assemblies display 79 213 ATN 331 Attention 331 Attenuator 233 Attenuator Mode 122 233 A...

Страница 357: ...116 Documentation Overview 11 Double dagger 190 Double Pulse 162 Double Pulse Delay 163 283 Double Pulse State 284 Double Pulse width 163 284 DOWN 188 Dwell Time 140 145 160 Level Sweep 295 LF Sweep 266 RF Sweep 291 E Edit User Correction Data 128 EFC Electronic Frequency Control 111 EFC mode Electronic Frequency Control 112 EMF Level display 124 ENABle 197 Enable disable beep 303 Enable registers...

Страница 358: ... Pulse Modulation 163 287 Gate Input Polarity 163 Pulse Modulation 286 Gateway Setup 87 304 306 GET 171 Getting started 41 GPIB 88 Characteristics 170 interface messages 170 Remote control interface 165 GPIB address 171 304 GPIB bus address 90 GPIB bus control remote 207 GPIB Visa Resource String 90 GTL 171 GUI Language 88 H Hardcopy Destination 97 217 Hardcopy Device Size 223 Hardcopy dialog File...

Страница 359: ...161 270 LF output 161 LF Output State 161 266 LF Sweep 159 265 LFSweep 327 Licence for software option 81 License Key 81 Limit Level 278 Limit Level 121 Linux 29 Linux controller 35 List mode 280 LLO 171 Load instrument settings 103 208 230 Local Remote Channel Control 90 Local to remote switchover 172 173 Lock keyboard 312 LOC LLO 327 M Malfunctions reacting 203 Manual Remote Control 33 MAX 188 M...

Страница 360: ... 90 Part numbers 79 Paste 106 Path reset 210 PCI bus 80 Phase RF output signal 271 Phase RF output signal 111 PhiM Depth 152 PhiM Deviation 273 PhiM External Coupling 153 272 PhiM Sensitivity 153 PhiM Source 152 274 PhiM State 152 274 PM Deviation 272 PM Frequency 263 PM Sensitivity 273 Point to point connection 31 Polarity Pulse Modulation 155 285 Power On Count 79 80 Power On Counter 214 Power O...

Страница 361: ...tup 94 Security Settings Accept 95 Annotation Amplitude 94 Annotation Frequency 94 Change Password 92 93 Confirm Password 92 93 Display 94 Keyboard 94 LAN Connection 93 New Password 92 93 Old Password 92 93 Security Password 94 USB Device 93 User Name 92 Select ASCII Destination User Correction data 130 Select ASCII Source User Correction data 130 Select NRP File 83 Select Operation File menu 101 ...

Страница 362: ...sition 197 parts 197 PTRansition 197 Status reporting system 195 Application 200 common commands 205 STB 196 Step Level Sweep 145 297 Step Lin LF Sweep 268 RF Sweep 294 Step Lin LF Sweep 159 Step Lin RF Sweep 140 Step Log LF Sweep 269 RF Sweep 295 Step Log LF Sweep 159 Step Log RF Sweep 140 Step width Frequency 261 Level Sweep 145 297 RF Sweep 294 Step width Frequency 110 Step width RF Sweep 140 S...

Страница 363: ...Remote control interface 165 USB Device Setup 93 User Correction 126 User Correction Data 127 246 User Name Setup 92 Use Sensor for RF Level Control Power Sensors 119 Use SParameters Power Sensors 118 Use SParameters Power Sensors 236 V Value User Correction 127 Variation Active 110 Variation Step 110 111 123 261 281 282 Video Sync Signal state 162 270 VISA 165 167 Libraries 166 Resource string 16...

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