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Signal Generator Settings

R&S

®

SGT100A

123

User Manual 1176.8674.02 ─ 07

7.1.4 ARB Offsets

► To access this dialog, select "SGMA-GUI > Instrument Name >Baseband > Fre-

quency/Phase Offsets".

Frequency Offset

Sets the frequency offset for the and shifts the ARB signal in the center frequency.

Remote command:

[:SOURce]:BB:FOFFset

Phase Offset

Sets the phase offset of the ARB signal.

Remote command:

[:SOURce]:BB:POFFset

7.2 Additive White Gaussian Noise (AWGN) - Noise Gen-

erator

This section introduces the concept of the AWGN generator and describes the settings
for generation of noise, sine wave interferer and adding noise to the generated signal.

The AWGN requires option R&S

SGT-K62.

7.2.1 About the AWGN Generator

The R&S

SGT allows you to superimpose noise on the generated signal. The built-in

internal noise generator generates an AWGN signal (Additive White Gaussian Noise)
with selectable bandwidth and adds it to the digital baseband signal. The main charac-
teristic of this kind of noise signal is the Gaussian distribution of the noise power den-
sity and uniform frequency distribution.

AWGN modes

The AWGN generator generates signal in one of the following different modes:

●

"Additive Noise":

the generated noise signal superimposes the interference-free

useful signal

Additive White Gaussian Noise (AWGN) - Noise Generator

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Содержание SGT100A

Страница 1: ...R S SGT100A SGMA Vector RF Source User Manual User Manual 1176 8674 02 07 2 Test Measurement...

Страница 2: ...MHz 1419 7952 02 R S SGT K540 Envelope Tracking 1419 7800 02 R S SGT K541 AM AM AM PM Predisortion 1419 7852 02 R S SGT K543 Envelope ARB 1419 7900 02 R S SGT K200 Waveform package for signals from R...

Страница 3: ...e of the product The product is used for its designated purpose if it is used in accordance with its product documentation and within its performance limits see data sheet documentation the following...

Страница 4: ...ation item 7 Signal words and their meaning The following signal words are used in the product documentation in order to warn the reader about risks and dangers Indicates a hazardous situation which i...

Страница 5: ...afety is not observed either at all or to the extent necessary electric shock fire and or serious personal injury or death may occur 1 Prior to switching on the product always ensure that the nominal...

Страница 6: ...t be fuse protected in such a way that anyone who has access to the product as well as the product itself is adequately protected from injury or damage 14 Use suitable overvoltage protection to ensure...

Страница 7: ...masks and protective clothing must be worn 7 Laser products are given warning labels that are standardized according to their laser class Lasers can cause biological harm due to the properties of the...

Страница 8: ...n permitted 5 If a cell develops a leak the fluid must not be allowed to come into contact with the skin or eyes If contact occurs wash the affected area with plenty of water and seek medical aid 6 Im...

Страница 9: ...s substances or fuels can cause health problems and lead to environmental damage For additional information about environmental protection visit the Rohde Schwarz website Instrucciones de seguridad el...

Страница 10: ...el uso del producto Deber n tenerse en cuenta todas las dem s informaciones de seguridad como p ej las referentes a la protecci n de personas que encontrar n en el cap tulo correspondiente de la docu...

Страница 11: ...l producto se emplea de forma sin nima el t rmino CUIDADO Las palabras de se al corresponden a la definici n habitual para aplicaciones civiles en el rea econ mica europea Pueden existir definiciones...

Страница 12: ...la tensi n preseleccionada en el producto coincida con la de la red de alimentaci n el ctrica Si es necesario modificar el ajuste de tensi n tambi n se deber n cambiar en caso dado los fusibles corre...

Страница 13: ...efectuadas por un electricista especializado 13 En el caso de dispositivos fijos que no est n provistos de fusibles interruptor autom tico ni otros mecanismos de seguridad similares el circuito de ali...

Страница 14: ...presario operador tiene la obligaci n de evaluar y se alizar las reas de trabajo en las que exista un riesgo elevado de exposici n a radiaciones 6 Tenga en cuenta que en caso de incendio pueden despre...

Страница 15: ...r ni fuego Debe evitarse el almacenamiento a la luz directa del sol Las celdas y bater as deben mantenerse limpias y secas Limpiar las conexiones sucias con un pa o seco y limpio 3 Las celdas o bater...

Страница 16: ...vos el ctricos usados no se deben desechar con los residuos dom sticos sin clasificar sino que deben ser recogidos por separado Rohde Schwarz GmbH Co KG ha elaborado un concepto de eliminaci n de resi...

Страница 17: ...sachtung der Anweisungen des Herstellers liegt in der Verantwortung des Benutzers Der Hersteller bernimmt keine Verantwortung f r die Zweckentfremdung des Produkts Die bestimmungsgem e Verwendung des...

Страница 18: ...n und Akkumulatoren Das Ger t enth lt eine Batterie bzw einen Akkumulator Diese d rfen nicht ber unsortierten Siedlungsabfall entsorgt werden sondern sollten getrennt gesammelt werden Weitere Informat...

Страница 19: ...und Betriebslagen Das Produkt darf nur in den vom Hersteller angegebenen Betriebszust nden und Betriebslagen ohne Behinderung der Bel ftung betrieben werden Werden die Herstellerangaben nicht eingehal...

Страница 20: ...nische Schalter sind zur Netztrennung nicht geeignet Werden Produkte ohne Netzschalter in Gestelle oder Anlagen integriert so ist die Trennvorrichtung auf Anlagenebene zu verlagern 5 Benutzen Sie das...

Страница 21: ...tion in oder am Produkt stattfinden k nnte oder ggf bereits stattgefunden hat z B wenn das Produkt von kalter in warme Umgebung bewegt wurde Das Eindringen von Wasser erh ht das Risiko eines elektrisc...

Страница 22: ...rursachen In diesem Fall kann vom Betreiber verlangt werden angemessene Ma nahmen durchzuf hren Ger t der Klasse B Ein Ger t das sich f r den Betrieb im Wohnbereich sowie in solchen Bereichen eignet d...

Страница 23: ...ert werden um R ckensch den oder Verletzungen zu vermeiden 2 Griffe an den Produkten sind eine Handhabungshilfe die ausschlie lich f r den Transport des Produkts durch Personen vorgesehen ist Es ist d...

Страница 24: ...schriften zur Entsorgung sind zu beachten 4 Falls beim Umgang mit dem Produkt Gefahren oder Betriebsstoffe entstehen die speziell zu entsorgen sind z B regelm ig zu wechselnde K hlmittel oder Motoren...

Страница 25: ...ur Le fabricant d cline toute responsabilit en cas d utilisation non conforme du produit Le produit est pr sum faire l objet d une utilisation conforme lorsqu il est utilis conform ment aux consignes...

Страница 26: ...ppareil contient une batterie ou un accumulateur Ces pi ces ne peuvent pas tre limin es avec les d chets urbains non tri s mais doivent faire l objet d une collecte s par e Pour plus d informations vo...

Страница 27: ...ant Tout obstacle la ventilation doit tre emp ch Le non respect des indications du fabricant peut provoquer des chocs lectriques des incendies et ou des blessures graves pouvant ventuellement entra ne...

Страница 28: ...appareil du r seau lectrique Si des produits sans interrupteur d alimentation sont int gr s dans des b tis ou syst mes le dispositif de s paration doit tre report au niveau du syst me 5 Ne jamais uti...

Страница 29: ...ons pouvant occasionner ou ayant d j occasionn le cas ch ant des condensations dans ou sur le produit par exemple lorsque celui ci est d plac d un environnement froid dans un environnement chaud L inf...

Страница 30: ...ns l environnement r sidentiel en raison de perturbations conduites ou rayonn es Dans ce cas on peut exiger que l exploitant mette en uvre de mesures appropri es pour liminer ces perturbations Apparei...

Страница 31: ...ulateurs ou batteries qui contiennent du plomb du mercure ou du cadmium sont des d chets sp ciaux Observer les r gles nationales d limination et de recyclage Transport 1 Le produit peut avoir un poids...

Страница 32: ...e du produit ne doit donc tre effectu que par un personnel qualifi et sp cialement form Le d montage inad quat peut nuire la sant Les r gles nationales concernant l limination des d chets doivent tre...

Страница 33: ...ument 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...

Страница 34: ...ux Operating System 24 2 3 Connecting an External PC and Devices 24 2 3 1 Installing the R S SGMA GUI Software on an External PC 25 2 3 2 Connecting a Remote PC via LAN 26 2 3 2 1 Connecting the Instr...

Страница 35: ...UI 55 6 1 3 Help 56 6 2 Info Dialog and Messages in the Info Bar 56 6 2 1 Info Dialog 56 6 2 2 Understanding the Messages in the Info Bar 58 6 3 Main Panel 58 6 4 Block Diagram 61 6 4 1 Function Block...

Страница 36: ...ngs 75 7 1 Baseband 75 7 1 1 System Configuration 75 7 1 2 ARB 77 7 1 2 1 About the ARB 78 Waveform Files Sources 78 ARB Test Signals 79 7 1 2 2 General Settings 80 7 1 2 3 Multi Segment Waveforms 83...

Страница 37: ...38 7 3 3 3 Digital Impairments 139 7 4 I Q Analog Output Settings 141 7 4 1 General Analog I Q Output Settings 142 7 5 Generation of Envelope Tracking Signals 146 7 5 1 Required Options 146 7 5 2 Abou...

Страница 38: ...tal Predistortions AM AM and AM PM Settings 184 7 6 3 1 General Settings 185 7 6 3 2 Predistortion Settings 187 7 6 3 3 Edit Predistortion Table Settings 191 7 6 3 4 Polynomial Coefficients Settings 1...

Страница 39: ...seband Input 235 7 9 1 Important Signal Parameters 236 7 9 2 BB Input Block 237 7 9 2 1 Baseband Input Settings Menu 238 Baseband Input General Settings 238 Sample Rate 239 Baseband Input Level 240 Si...

Страница 40: ...ating States 270 9 8 How to Use Computer Names 272 9 9 How to Install a New Firmware Version on the Instrument 272 9 10 How to Activate Options 275 10 Network and Remote Control Operation 276 10 1 Rem...

Страница 41: ...s 293 10 5 LXI Configuration 293 10 5 1 Default State of the Network Settings 294 10 5 2 LXI Browser Settings 294 10 5 3 LAN Configuration 295 10 5 3 1 IP Configuration 296 10 5 3 2 Advanced Config 29...

Страница 42: ...14 4 3 Trigger Settings 355 11 14 4 4 Marker Settings 362 11 14 4 5 Test Signals Settings 365 11 14 4 6 SOURce BB ARB MCAR Subsystem 369 11 14 4 7 SOURce BB ARB WAV Subsystem 383 11 14 4 8 SOURce BB A...

Страница 43: ...king 520 14 Error Messages and Troubleshooting 521 14 1 Status Information 521 14 2 Error Messages 521 14 2 1 Volatile messages 521 14 2 2 Permanent messages 522 14 3 SCPI Error Messages 522 14 4 Devi...

Страница 44: ...SRE 541 15 1 5 4 Event Status Register ESR and Event Status Enable Register ESE 542 15 1 5 5 Questionable Status Register STATus QUEStionable 543 15 1 5 6 Operation Status Register STATus OPERation 54...

Страница 45: ...Contents R S SGT100A 14 User Manual 1176 8674 02 07...

Страница 46: ...ively LAN or USB connections available Coherent LO input and output connectors also usable as MIMO input output and phase coherent I Q demodulation Linux operating system Graphical user interface R S...

Страница 47: ...anical drawings and spare part lists Instrument security procedures manual Deals with security issues when working with the R S SGT in secure areas Basic safety instructions Contains safety instructio...

Страница 48: ...og boxes menus options buttons 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...

Страница 49: ...in the following sections Notice that the data sheet may specify additional operating conditions Risk of instrument damage Note that the general safety instructions also contain information on operat...

Страница 50: ...Electromagnetic Interference EMI Use suitable shielded cables of high quality For example use double shielded RF and LAN cables Note USB cables are of varying and often poor quality Therefore check th...

Страница 51: ...ement and other mechanical effects dur ing transportation The carrying handles at the front and side of the casing are designed to lift or carry the instrument Do not apply an excessive external force...

Страница 52: ...smaller instruments on the top the overall load imposed on the lowest instrument must not exceed 250 N If the instruments have foldable feet fold them in completely Rack mounting The R S SGT can be in...

Страница 53: ...power supplied and the R S SGT initiates its startup procedure In standby state the button is orange The standby power only supplies the power switch circuits and built in oscillator to keep it at it...

Страница 54: ...vided for service purposes SGMA GUI Instrument Diagnostic Test Self Test 2 1 7 Default Settings When the instrument is switched on it is not the preset state that is active but rather the instrument s...

Страница 55: ...he manual operation of the instrument require an external controller For the prerequisites and the instructions on how to configure an external controller for remote control refer to the user manual A...

Страница 56: ...e To install the R S SGMA GUI the following hardware and soft ware requirements have to be met Table 2 1 Hardware and software requirements Requirement Remark One of the following operating sys tems W...

Страница 57: ...276 This section describes how to configure the LAN interface It includes the following top ics Chapter 2 3 2 1 Connecting the Instrument to the Network on page 26 Chapter 2 3 2 2 Assigning the IP Add...

Страница 58: ...e 1 255 the subnet mask is always 255 255 0 0 The IP address of the host must be within the same address area for Zeroconf By default the instrument is configured to use dynamic TCP IP configuration a...

Страница 59: ...he R S SGT as a device and connect it to a controller Connecting a controller host PC or compatible signal generator If you connect a controller host PC or compatible signal generator to the R S SGT t...

Страница 60: ...e Micro A connector to the R S SGT Refer to the documentation of the USB device to find out which USB connector type you can connect to the USB device The Figure 2 2 illustrates schematically the requ...

Страница 61: ...n Chapter 3 2 Rear Panel Tour on page 32 As the R S SGT is inten ded to be remote controlled the front panel of the R S SGT contains no display but mostly LEDs to inform you about the status of the in...

Страница 62: ...orange indicates a running process e g calibration self test No light indicates that no errors or warnings have occurred For details on errors or warnings refer to the graphical user interface on a re...

Страница 63: ...R The PCIe Peripheral Component Interconnect Express single lane interface allows remote control with optimized speed For details see Chapter 2 3 3 Connecting a Controller via PCI Express on page 28 U...

Страница 64: ...work For details see Chapter 2 3 2 Connecting a Remote PC via LAN on page 26 DIGITAL I Q Input of a digital I Q signal USER 1 2 Multi purpose connectors The input output signal has to be defined e g T...

Страница 65: ...MB male connectors for direct output of the analog I Q signal REF LO IN REF LO OUT SMA female type connectors for reference or local oscillator signals and alternatively also in MIMO setups Reference...

Страница 66: ...3 1 Front Panel This section provides an overview of the connectors on the front panel of the extension unit For an overview of the front panel connectors of the R S SGT refer to Chapter 3 1 Front Pan...

Страница 67: ...e refer to the data sheet USER 2 A BNC multi purpose connector The input output signal has to be defined e g Trig ger Marker 1 2 Clock In Out Sync In Out Connector USER 2 can be also used as an input...

Страница 68: ...lfill these requirements refer to Chapter 2 3 2 1 Connecting the Instrument to the Network on page 26 Chapter 2 3 1 Installing the R S SGMA GUI Software on an External PC on page 25 Chapter 2 3 2 3 Au...

Страница 69: ...rence frequency source 3 In the R S SGMA GUI main panel the green indicator in front of the instrument s name confirms that there is a connection between the instrument and the remote PC and that the...

Страница 70: ...WinIQSIM2 but focuses only the task related settings For more information on configuration and working with the R S WinIQSIM2 refer to description software manual R S WinIQSIM2 To configure the R S SG...

Страница 71: ...cans the network for connected and active instruments Alternatively use the New function to add the R S SGT manually to the list of instruments 4 Close the dialog 5 In the block diagram select Vector...

Страница 72: ...SGT is established To generate an LTE example waveform file with the R S WinIQSIM2 1 In the R S WinIQSIM2 select Block diagram Baseband Config EUTRA LTE 2 Adjust the settings as required for example...

Страница 73: ...T100A 42 User Manual 1176 8674 02 07 The R S WinIQSIM2 calculates the signal and displays important signal parame ters like the used Sample Rate and Number of Samples How to Create a Waveform File wit...

Страница 74: ...the R S SGT 1 In the R S WinIQSIM2 select Transmission Transmit 2 In the Waveform Transmission to Arbitrary Waveform Generator dialog select a Source Internal WinIQSIM2 b Destination Instrument and de...

Страница 75: ...674 02 07 The waveform is transmitted to the default directory of the R S SGT 3 In the R S SGT select Baseband ARB The dialog confirms that the ARB is enabled and plays the transmitted waveform How to...

Страница 76: ...rument This section provides an overview of the possible configuration setups for controlling the R S SGT 5 1 1 Manual Operation from the R S SGMA GUI The following example represents a basic configur...

Страница 77: ...ote control refer to Chapter 10 Network and Remote Control Operation on page 276 Chapter 15 1 Remote Control Basics on page 525 5 2 Managing Files on the R S SGT The R S SGT has internal memory where...

Страница 78: ...ment A folder opens containing the share and the update folder The share folder contains the user files e g waveforms lists You can copy delete and rename the files contained in this folder The update...

Страница 79: ...ly used settings so you can continue your work in the next session 6 1 Operating Menu and Toolbar On the top of the main panel there are the menu bar the toolbar and the info bar with the correspondin...

Страница 80: ...matically in a predefined directory and loaded by default when starting the instrument again The files with instrument settings are not accessible Save Standard quick save of the settings of the curre...

Страница 81: ...is also displayed in the main panel and an Instrument Type It is also displayed whether the instrument is activated in the R S SGMA GUI and hence displayed in the main panel or not Remote command INST...

Страница 82: ...tive remote control parameters The information in the mapping file is grouped in rows where one row corresponds to one configured instrument The rows have the following structure InstrumentType Symbol...

Страница 83: ...Edit Instruments The dialog provides access to the main instrument s settings such as Symbolic Name Instrument Type and connection settings Refer to Chapter 6 5 2 Handling Instruments in the R S SGMA...

Страница 84: ...to lock the instrument prior to further configuration Locked instruments will not be found by the scan function The instrument has to be unlocked to allow operation from another remote PC Note The tw...

Страница 85: ...ruments GPIB BOARd on page 72 Serial Number Enters the serial number as instrument s identification while using the USB or PCIe interfaces for remote control Remote command INSTruments SERial on page...

Страница 86: ...tected service functions 1 Select SGMA GUI Setups Protection After the instrument has been switched on the protection levels 1 to 4 are auto matically activated 2 To deactivate the protection enter th...

Страница 87: ...ible to move from this context sensitive page to any page of the help system An overview of the contents of the online help can be reached via the menu SGMA GUI Help Contents A search for keywords wit...

Страница 88: ...i e the most recent message is displayed first The buttons in the lower part of the Info dialog provide quick access to some func tions for managing these messages For a detailed description on how to...

Страница 89: ...ngs in the program e g switching on illegal entries that are not accepted by the program e g range violations They are dis played in the info line on a yellow background They are displayed on top of s...

Страница 90: ...Red the instrument is in one of the following states Standby state To operate the instrument manually it has to be switched to ready state see To return the instrument from standby to ready state on...

Страница 91: ...page 328 I Q Mod State Switches the I Q modulation on and off The following functions have the same effect The Mod On Off icon in the SGMA GUI The I Q Mod On Off in the I Q Mod block in the block diag...

Страница 92: ...ote command SOURce ROSCillator SOURce on page 470 LO Scr Ext This icon indicates that the internal local oscillator is switched off See Source on page 201 6 4 Block Diagram The block diagram available...

Страница 93: ...ents of the signal by a single line arrow Connections are indicated by a solder point Black is used for the generated signal Green is used for control signals 6 5 Working with R S SGMA GUI This sectio...

Страница 94: ...instrument to the network b Switch on the instrument c Press the ID key on the front panel of the instrument 2 Start the SGMA GUI on a computer connected to the same network All instruments are added...

Страница 95: ...hostname prefix and enter the prefix the searched hostnames begin with The scan function searches only for instruments whose hostnames begin with the selected prefix All instruments which are connecte...

Страница 96: ...Setup Instruments Configure Instruments dialog select the instrument in the list of Available Instruments and select Edit 2 In the Edit Instrument dialog enable Exclusive Access 3 Alternatively send...

Страница 97: ...entification In practice instruments are integrated into a large network or placed in racks together with several other instruments of the same kind It might be difficult then to find out which of the...

Страница 98: ...ruments Available Instruments table and activate it if disabled How to identify an instrument in an instrument set To identify the instrument in an instrument set use one of the device identification...

Страница 99: ...s available only when the history of the messages is displayed All messages are cleared How to delete all brief messages In the Info dialog click the Del volatile button Tip This button is available o...

Страница 100: ...es INSTruments SCAN HNPRefix rssg scan returns only instruments with hostname beginning with rssg INSTruments SCAN 1 OPC Query the number of available instruments and the settings of each configured i...

Страница 101: ...PI commands provided to remote control the R S SGMA GUI INSTruments ACTive STATe 70 INSTruments COUNt 71 INSTruments EACCess STATe 71 INSTruments MAPPing FILE 71 INSTruments NAME 71 INSTruments REMote...

Страница 102: ...to further configuration Parameters State List of BOOL values LockInstr 1 LockInstr 2 0 1 OFF ON Example See Chapter 6 6 1 Configuring Instruments in the R S SGMA GUI on page 68 Manual operation See...

Страница 103: ...ts in the R S SGMA GUI on page 68 Manual operation See Hardware Channel on page 53 INSTruments REMote NAME Name Enters the IP Address or the host name of the connected instrument Parameters Name Hostn...

Страница 104: ...ames begin with Parameters Prefix string Example See Chapter 6 6 1 Configuring Instruments in the R S SGMA GUI on page 68 Manual operation See Scan LAN instruments with host name prefix on page 51 INS...

Страница 105: ...Te 70 INSTruments COUNt 71 INSTruments EACCess STATe 71 INSTruments GPIB ADDRess 72 INSTruments GPIB BOARd 72 INSTruments MAPPing FILE 71 INSTruments NAME 71 INSTruments REMote CHANnel 72 INSTruments...

Страница 106: ...ion in this section follows the menu tree structure of the graph ical user interface 7 1 Baseband 7 1 1 System Configuration To access the System Configuration dialog select SGMA GUI Instrument Name B...

Страница 107: ...e lope tracking is generated which is output at the analog I Q output The ARB of the first Baseband is then output at the RF output You can configure the envelope tracking signal in the Arbitrary Wave...

Страница 108: ...Tracking When this mode is enabled a second ARB signal is generated which is output at the analog output connectors This ARB can be only used for envelope tracking Remote command SCONfiguration MODE...

Страница 109: ...o wave form files sources can be distinguished Internally generated waveforms The ARB generator enables the calculation and the generation of multi segment and multi carrier waveform files as well as...

Страница 110: ...ter mine the ARB clock frequency Clock Frequency Frequency Samples per Period Note Because the resulting clock rate must not exceed the maximum ARB clock rate see data sheet the number of sample value...

Страница 111: ...imal number which is decimal to binary converted internally The signal is provided as a 16 bit wide digital signal for both I and Q channels Converted to analog the signal is output directly at the BN...

Страница 112: ...ttings The values are shown in Table 7 2 Table 7 2 Default settings Parameter Value State Off Clock Freq 1 MHz Trigger Mode Auto Trigger Source Internal Marker State Off Marker Mode Unchanged Clock So...

Страница 113: ...mote command SOURce hw BB ARBitrary WAVeform SELect on page 389 Waveform Info Opens a dialog with detailed information about the currently selected waveform The waveform information displayed in this...

Страница 114: ...Test Signal on page 107 Chapter 7 1 2 7 Const I Q Test Signal on page 108 Remote command n a 7 1 2 3 Multi Segment Waveforms Modern chip technologies implement several communication standards within...

Страница 115: ...composed multi segment waveform file involves different stages by completing of each of them the R S SGT creates and stores a dedicated file The following files are used Configuration list is a dedica...

Страница 116: ...General Settings To access this dialog select SGMA GUI Instrument Name Baseband ARB Multi Segment General This dialog comprises the settings for managing files and lists as well as the possi bility t...

Страница 117: ...some time A panel with a progress bar and an Abort button appears during creating of the multi segment waveform In remote control the configuration file to be used for the creation of the multi segme...

Страница 118: ...lti segment waveform file when loading the list Remote command SOURce hw BB ARBitrary WSEGment CONFigure OFILe on page 395 Segment Table To access this dialog select SGMA GUI Instrument Name Baseband...

Страница 119: ...Remote command SOURce hw BB ARBitrary WSEGment CONFigure SEGMent CATalog on page 396 SOURce hw BB ARBitrary WSEGment CONFigure SEGMent APPend on page 396 Delete Deletes the selected segment Remote com...

Страница 120: ...gments are output at a lower level than that displayed Equal RMS Segments are output so that all segments have the same rms value The Level display applies to all segments Remote command SOURce hw BB...

Страница 121: ...s the marker information as config ured in the individual waveform files Remote command SOURce hw BB ARBitrary WSEGment CONFigure MARKer MODE on page 395 Sequence Restart Enables disables the generati...

Страница 122: ...list file i e the file with the play list set tings The sequencing list file has an extension wvs and is automatically assigned to but independent from the multi segment file By default both files ha...

Страница 123: ...r of times the selected segment is cyclically repeated before the next segment in the sequence is processed n a Next Sequencing Play List Determines the action after completing the current one like fo...

Страница 124: ...are only the active segments Remote command n a New Sequencing List Opens the Select Sequencing List dialog to enter the name of the new file Remote command n a Load Sequencing List Opens the Select S...

Страница 125: ...ier waveforms can be easily configured as broadband test signals and used for such purposes as transmitter or receiver tests Even complex multi carrier scenarios composed of signals from different dig...

Страница 126: ...creation day is displayed in the File menu when a waveform is loaded Default Settings and State The upper part of the General dialog is used for calling the default settings and saving and recalling...

Страница 127: ...e name of the file is specified in the filename entry field the direc tory selected in the Save Into field The file is saved by pressing the Save button The Fast Save checkbox determines whether the i...

Страница 128: ...dwidth is 160 MHz Note In order to avoid wrap around problems the effective Carrier Spacing might be slightly modified The Carrier Spacing is rounded in that way that the carrier closest to the center...

Страница 129: ...page 375 Target Crest Factor Available only for Clipping On Sets the value of the desired crest factor A Target Crest Factor above the crest factor of the unclipped multicarrier signal has no effect...

Страница 130: ...output file duration is the least common multiple of all input file durations Remote command SOURce hw BB ARBitrary MCARrier TIME MODE on page 383 Signal Period Available only for Signal Period Mode...

Страница 131: ...in the multi carrier dialog indicates the name the size and the clock rate of the currently calculated multi carrier output file Output File Opens the File dialog where the output filename of the mult...

Страница 132: ...his multi carrier waveform is saved with the filename specified in Output File If no filename is specified the File Manager opens so that the filename can be entered As with normal waveforms the file...

Страница 133: ...SOURce hw BB ARBitrary MCARrier EDIT CARRier STARt on page 380 Carrier Stop Defines the stop index of the carrier range to which the assistant settings are intended to apply Remote command SOURce hw...

Страница 134: ...r table equals DelayStart n DelayStep where n ranges from 0 to Carrier Stop Carrier Start Remote command SOURce hw BB ARBitrary MCARrier EDIT CARRier DELay STEP on page 377 Input Waveform File Calls t...

Страница 135: ...BB ARBitrary MCARrier CARRier ch POWer on page 373 Phase Carrier Table Sets the starting phase of a carrier Remote command SOURce hw BB ARBitrary MCARrier CARRier ch PHASe on page 372 Delay Carrier Ta...

Страница 136: ...ph Table To access this dialog select Baseband ARB Multi Carrier Carrier Graph Carrier Graph Calls a graphical representation of the current multi carrier configuration in the fre quency domain The he...

Страница 137: ...lected signal Frequency Enters the frequency of the test signal Remote command SOURce hw BB ARBitrary TSIGnal SINE FREQuency on page 368 Samples per Period Enters the number of sample values required...

Страница 138: ...mote command SOURce hw BB ARBitrary TSIGnal SINE CREate on page 366 SOURce hw BB ARBitrary TSIGnal RECTangle CREate on page 366 SOURce hw BB ARBitrary TSIGnal CIQ CREate on page 366 7 1 2 6 Rect Test...

Страница 139: ...d as a wave form file Remote command SOURce hw BB ARBitrary TSIGnal SINE CREate NAMed on page 366 SOURce hw BB ARBitrary TSIGnal RECTangle CREate NAMed on page 366 SOURce hw BB ARBitrary TSIGnal CIQ C...

Страница 140: ...it to a file The File Select window opens automatically and the signal can be stored as a wave form file Remote command SOURce hw BB ARBitrary TSIGnal SINE CREate NAMed on page 366 SOURce hw BB ARBit...

Страница 141: ...ntinuously Retrigger The signal is generated continuously A trigger event internal or external causes a restart Armed_Auto The signal is generated only when a trigger event occurs Then the signal is g...

Страница 142: ...ed_Auto or Armed_Retrigger have been selected the gen eration of signals can be stopped with the Arm button A new trigger internally with Execute Trigger or externally causes a restart Stopped The wav...

Страница 143: ...to the external trigger event On Corresponds to the default state of this parameter The signal calculation starts simultaneously with the external trigger event but because of the instrument s proces...

Страница 144: ...nd SOURce hw BB ARBitrary TRIGger EXTernal 1 2 RDELay on page 360 Trigger Inhibit Sets the duration for inhibiting a new trigger event subsequent to triggering The input is to be expressed in samples...

Страница 145: ...age 398 Next Segment Mode Sets the segmented trigger mode of a multi segment waveform i e defines the way the switch over between the segments in a multi segment waveform will be execu ted In Same Seg...

Страница 146: ...gnal segment to a sawtooth segment I channel above in the case of next seg ment external triggering below The regular trigger mode for starting the waveform generation and triggering the whole multi s...

Страница 147: ...is changed in Next Segment signal output is stopped and the new segment is not output until a trigger occurs In the case of Trigger Retrigger output starts at once and the segment is generated continu...

Страница 148: ...tput starts after the first trigger event The segment is then generated once Further trigger events cause a restart If the segment index is changed in Next Segment the new seg ment is not output until...

Страница 149: ..._Auto output starts after the first trigger event The segment is then generated continu ously If the segment is changed in Next Segment signal output is stopped and the new segment is not output until...

Страница 150: ...mode are considered After the instrument switch on the graph of the last loaded waveform is displayed Note The curves plotted in this dialog box are textbook examples not measured waveforms They are i...

Страница 151: ...arker signal that is defined by a bit pattern is generated The pat tern has a maximum length of 64 bits and is defined in an input field which opens when Pattern is selected The pattern bits switch th...

Страница 152: ...SOURce hw BB ARBitrary TRIGger OUTPut DELay FIXed on page 365 7 1 3 4 Clock Settings To access this dialog select SGMA GUI Instrument Name Baseband ARB Marker In the Clock Settings section you can se...

Страница 153: ...ltiple Sam ple A multiple of the sample clock is supplied via the USER 1 2 connec tor the sample clock is derived internally from it The Multiplier window provided allows the multiplication factor to...

Страница 154: ...for generation of noise sine wave interferer and adding noise to the generated signal The AWGN requires option R S SGT K62 7 2 1 About the AWGN Generator The R S SGT allows you to superimpose noise o...

Страница 155: ...occupied bandwidth and may therefore be a value greater than the pure signal bandwidth In the most test cases the signal and the noise power are not defined directly but by the target s signal to noi...

Страница 156: ...vel at the RF output corresponds to the carrier noise power The noise power of digitally modulated signal is characterized by the parameter Eb N0 indicating the ratio of bit energy to noise power dens...

Страница 157: ...th is modulated to the carrier The connection to the baseband is interrup ted CW Interferer A sine with a defined frequency offset is added to the baseband sig nal The calculation of Eb N0 ratio is om...

Страница 158: ...ced Remote command SOURce hw AWGN BWIDth RATio on page 344 Target CW Frequency Offset Available only for Mode CW Interferer Sets the desired frequency of the sine wave Remote command SOURce hw AWGN FR...

Страница 159: ...layed settings are related to This setting also influences The way the interfering parameters are displayed e g if the SNR value is defined as C N or as S N The value units The values related to the R...

Страница 160: ...ends on the selected output Dis play Mode For Reference Mode Carrier this entry determines the power of the output sig nal i e the carrier noise signal It does not affect the power of the useful signa...

Страница 161: ...bar The power of the noise signal is derived from the selected C N or S N value and displayed with the parameter Noise Power in the units of the useful signal For Reference Mode Noise this parameter...

Страница 162: ...e For correct measurement of the noise power within the system bandwidth it is advisable to perform channel power measurement with a signal analyzer Remote command SOURce hw AWGN POWer NOISe on page 3...

Страница 163: ...tal signals Either the external digital signal or the externally or internally generated baseband sig nal is fed into the I Q modulator I Q Mod function block The external signal is input via the I an...

Страница 164: ...ults in an I Q offset which is usually due to carrier feedthrough in the I Q modulator Possi ble reasons are interfering signals at the RF carrier frequency e g an unsuppressed RF carrier subchannel T...

Страница 165: ...ifiers in the I and Q channels of the I Q modulator The effect of a positive and negative gain imbalance is shown below Figure 7 6 Negative gain imbalance left and positive right gain imbalance in the...

Страница 166: ...am 7 3 3 I Q Modulator Settings 7 3 3 1 General To access this dialog select a SGMA GUI Instrument Name IQ Mod General b SGMA GUI Instrument Name Impairments General State Activates deactivates I Q mo...

Страница 167: ...e input signal This setting requires the additional equipment options for generating the various baseband signals Remote command SOURce IQ SOURce on page 425 I Q Swap Available only for Source Interna...

Страница 168: ...I Q control is normal On The I and Q signals are swapped Remote command SOURce hw IQ SWAP STATe on page 425 SOURce IQ IMPairment SWAP STATe on page 424 I Q Wideband Optimized setting for wideband mod...

Страница 169: ...is value is necessary to allow the correct output power to be generated at the RF output When the set output power is generated the R S SGT uses this value to com pensate the average power which is lo...

Страница 170: ...3 Remote command SOURce IQ IMPairment LEAKage I on page 423 SOURce IQ IMPairment LEAKage Q on page 423 Gain Imbalance Sets the imbalance of the I and Q vector see Chapter 7 3 2 2 Gain and Gain Imbal a...

Страница 171: ...eak envelope power PEP for the I and or Q signal component An ideal I Q modulator suppresses the carrier leakage completely offset 0 percent For more information see Chapter 7 3 2 1 I and Q Offset on...

Страница 172: ...he half of the I Q skew value A positive I Q skew means that the Q vector delays relative to the I vector and vice versa Remote command SOURce hw BB IMPairment SKEW on page 409 SOURce BB IMPairment IQ...

Страница 173: ...43 RF Envelope 143 I Q Output Type 143 Mode 144 I Q Level Vp EMF 144 Couple I Q Bias 144 Bias EMF 144 Offset EMF 145 State Enables disables the analog I Q output Note By default these output connector...

Страница 174: ...og SETTing DELete on page 427 RF Envelope In instruments equipped with option R S SGT K540 enables the output of a control signal that follows the RF envelope This control signal is provided for power...

Страница 175: ...Remote command SOURce hw IQ OUTPut ANALog MODE on page 428 I Q Level Vp EMF Sets the output voltage for both signal components See Chapter 7 3 2 Impairments on page 133 Table 7 4 Maximum I Q level and...

Страница 176: ...ative direction Effect of a positive offset Effect of a negative offset A positive offset is set with half of the value in posi tive direction at the non inverting outputs in nega tive direction at th...

Страница 177: ...al Analog I Q Outputs R S SGT K16 Option Envelope Tracking R S SGT K540 Optional option AM AM AM PM Predistortion R S SGT K541 7 5 2 About the Envelope Tracking Provided the required options are insta...

Страница 178: ...m Dig Mod Set acc to the standard GSM you can observe the generated envelope signal and the effects of enabled shaping 7 5 2 1 Envelope Voltage Adaptation Modes In the R S SGT you define the voltage o...

Страница 179: ...ct the way you define the shaping function You can choose between 2 predefined simple linear functions see About the Linear Functions on page 149 3 detroughing functions with a configurable factor see...

Страница 180: ...nual mode on page 156 Provided are two linear functions where each of them depends on the Envelope Volt age Adaptation mode Linear Voltage f x x in Auto Normalized Manual f x b x Vcc min in Auto Power...

Страница 181: ...Normalized Manual The polynomial order n the polynomial constant a0 and polynomial coefficients a0 to an are user definable see Chapter 7 5 7 Polynomial Coefficients Setting on page 176 x depends on...

Страница 182: ...load it into the instrument See also File format of the shaping table file on page 151 Internally Use the built in editor table editor see Chapter 7 5 6 Edit I Q Envelope Shape Settings on page 175 F...

Страница 183: ...Q OUTPut ANALog ENVelope SHAPing PV FILE NEW on page 444 Converting Shaping Functions and Understanding the Displayed Values If an envelope function is defined the Shaping dialog displays the diagram...

Страница 184: ...orm Vcc in Auto Normalized mode VccPow0 Vcc in Auto Power mode and Vcc min 0 V VccPow1 Vcc in Auto Power mode and Vcc min 0 V For information on the provided shaping functions and their formulas see A...

Страница 185: ...hic Scale Voltage Example Calculating the current VccPow0 Auto Power mode Vcc min 0 V Configuration as described in Common settings and Vcc min 0 V f x b x Vcc min see About the Linear Functions on pa...

Страница 186: ...in min Vcc min VccPow1 1 0 2 0 2236 0 0071 0 04 0 0071 0 2 VccPow1 0 321 V Example Calculating the current VccNorm Auto Normalized mode Configuration as described in Common settings and Envelope Volta...

Страница 187: ...ple Calculating the current VCC in Manual mode In Envelope Voltage Adaptation Manual mode set the parameter Pre Gain PEP 3 4 dB The displayed shaping function resembles the shaping function in Auto No...

Страница 188: ...ow x VccPow0 is VccPow0 0 178 0 0071 0 2236 1 0 1 0 0071 0 2236 VccPow0 0 151 V 7 5 3 General RF Envelope Settings To access the related settings and enable the generation of the envelope signal 1 Sel...

Страница 189: ...Trak Interface Type 160 Envelope Voltage Reference 160 I Q Output Type 160 VoutMin Max 160 Bias 161 Offset 161 DC Modulator characteristics 162 EMF 162 Rin 162 Termination 162 Bipolar Input 163 VppMax...

Страница 190: ...rovided for power amplifiers envelope tracking testing The signal is output at the I OUT and I BAR OUT connec tors See Chapter 7 5 Generation of Envelope Tracking Signals on page 146 Remote command SO...

Страница 191: ...If RF Envelope Off The analog I Q signal components are output at the I Q BAR con nectors Single Ended If RF Envelope On The envelope signal E is output at the I connectors If RF Envelope Off Single...

Страница 192: ...s where Bias is related to high impedance 1 M Table 7 8 Effect of enabled bias Effect of a positive bias Effect of a negative bias Use this parameter to define the operating point of a DUT Remote comm...

Страница 193: ...dance of the used external DC modulator Rin and the instrument calculates the envelope output voltage VoutMin Max based on it Remote command SOURce hw IQ OUTPut ANALog ENVelope EMF STATe on page 438 R...

Страница 194: ...with the MIPI Alliance specification Specification for Analog Reference Interface for Envelope Tracking Remote command SOURce hw IQ OUTPut ANALog ENVelope BINPut on page 439 VppMax DC Modulator chara...

Страница 195: ...Refer to the product documentation of the PA for information on its characteristics The following settings are required VccMin Max PA characteristics Sets or displays the minimum and maximum values o...

Страница 196: ...page 442 PEPinMin Max PA characteristics Sets the minimum and maximum values of the input power PEPin as required by the used power amplifier PA The PEPinMin Max parameters define the linear range of...

Страница 197: ...iagram displays information on shaping state incl current shaping method and setting like gains or delay Tip Hotspots for quick access The displayed blocks are hotspots Select one of them to access th...

Страница 198: ...ge 436 Calculate Envelope form Predistorted Signal In instruments equipped with option R S SGT K541 enables the calculation of the envelope signal from the original baseband signal or from the AM AM a...

Страница 199: ...erstanding the displayed information Envelope Voltage Adaptation Auto Power Shaping Detroughing 1a 1b Indicates the values of VccMin Max 2a Values smaller than PEPinMin are clipped 2b Values greater t...

Страница 200: ...e shaping and selects the method to define the shaping function For detailed information on the shaping functions see Chapter 7 5 2 3 Envelope Shaping and Shaping Methods on page 148 Converting Shapin...

Страница 201: ...function is 0 dB in Envelope Voltage Adaptation Manual mode this function is suitable for determining the Pre Post Gain values Detroughing The shaping function applies a detroughing to prevent that t...

Страница 202: ...edge on or aim to achieve an exact relation between the supply voltage and RF output power for example by the describing the transition region of a PA Select Shaping Table to access the settings 1 2a...

Страница 203: ...s the mathematical function describing the detroughing The following functions are available f x x d e x d f x 1 1 d cos x pi 2 f x d 1 d xa where x depends on the Envelope Voltage Adaptation mode see...

Страница 204: ...l mode sets a pre gain i e an attenuation applied to define the operating range of the power amplifier The pre gain can be used to define and test only a specific required part of the operating range...

Страница 205: ...w IQ OUTPut ANALog ENVelope SHAPing FILE SELect on page 443 In Envelope Voltage Adaptation Auto mode SOURce hw IQ OUTPut ANALog ENVelope SHAPing PV FILE CATalog on page 443 SOURce hw IQ OUTPut ANALog...

Страница 206: ...Rce hw IQ OUTPut ANALog ENVelope VCC VALue LEVel on page 440 SOURce hw IQ OUTPut ANALog ENVelope VCC VALue PEP on page 440 SOURce hw IQ OUTPut ANALog ENVelope VCC VALue on page 440 7 5 6 Edit I Q Enve...

Страница 207: ...n Auto Power mode Remote command n a Goto Edit Save As Save Standard functions for editing of data lists Changed and unsaved values are displayed on a yellow background Remote command n a Fill Table A...

Страница 208: ...tings you can define a polynomial function with up to 10th order to describe the envelope shape 6 Select Polynomial Order 2 n 2 7 Set the constant a0 and the polynomial coefficients a1 and a2 8 Select...

Страница 209: ...l Order Defines the polynomial order n that is the number of polynomial coefficients see About the Polynomial Function on page 150 Select Apply to confirm the settings Remote command See SOURce hw IQ...

Страница 210: ...redistorted Digital predistortion DPD is a method to apply wan ted and well defined predistortion on the signal to be transmitted so that when this sig nal is amplified the resulting signal features t...

Страница 211: ...bar of the instrument defines the signal level before the DPD is applied Signal with selected level is pre distorted and depending on the selected AM AM and AM PM functions attenuated or boosted Leve...

Страница 212: ...alculates the correction values AM AM and AM PM functions as follows AM AM x AM AM x x abs PDPD x x AM PM x AM PM x tan 1 Im PDPD x Re PDPD x A dedicated graphical display visualizes the calculated co...

Страница 213: ...PM dpd_phase Rohde Schwarz Digital AM PM Predistortion Table Pin dBm deltaPhase deg x The header is optional The file content is a list of up to 4000 comma separated value pairs describing the delta v...

Страница 214: ...t Rohde Schwarz Digital Predistortion Normalized Table Data PinMax dBm number of points Vin Vmax deltaV V deltaPhase deg 10 4096 0 0 0 0 0002442 0 00018246 0 28052 0 0004884 0 00036487 0 28041 0 00073...

Страница 215: ...ized magnitude varies as a function of input power a ideal characteristic b measured AM AM curve c resulting AM AM predistortion function i e correction values curve d ideal predistorted signal The re...

Страница 216: ...gs are described in Chap ter 11 14 14 SOURce IQ DPD Subsystem on page 447 7 6 3 1 General Settings State 185 Set to Default 185 Save Recall 186 AM AM First 186 Level Reference 186 Maximum Output Level...

Страница 217: ...e 451 SOURce hw IQ DPD SETTing DELete on page 450 AM AM First Toggles the order the AM AM and AM PM predistortions are applied Remote command SOURce hw IQ DPD AMFirst on page 451 Level Reference Switc...

Страница 218: ...e or there are no measure ments results available Remote command SOURce hw IQ DPD INPut PEP on page 453 SOURce hw IQ DPD INPut LEVel on page 453 SOURce hw IQ DPD INPut CFACtor on page 453 SOURce hw IQ...

Страница 219: ...e ideal ones 5 Values greater than the PEPin Max are ignored The dialog covers the settings for digital predistortion like select and enabling an AM AM and or AM PM predistortion select the way the pr...

Страница 220: ...Table Normalized A predistortion function defined in a table contains a limited number of value pairs This parameter enables a linear interpolation between the defined values to prevent abrupt change...

Страница 221: ...r tests with envelope tracking set the PEPinMax value to the maximum value of the input power PEPin Max as required by the used power amplifier PA Remote command SOURce hw IQ DPD PIN MIN on page 453 S...

Страница 222: ...Q DPD SHAPing TABLe AMAM FILE SELect on page 455 For AM PM distortions SOURce hw IQ DPD SHAPing TABLe AMPM FILE CATalog on page 454 SOURce hw IQ DPD SHAPing TABLe AMPM FILE SELect on page 455 Polynomi...

Страница 223: ...r dB Pin dBm Delta Phase deg Sets the correction value pairs Pin Power Value pairs for the AM AM predistortion Pin Phase Value pairs for the AM PM predistortion Remote command See SOURce hw IQ DPD SHA...

Страница 224: ...func tions and the required correction coefficients out of the defined polynomial To access the polynomial coefficients setting and define a higher order polyno mial 1 Select I Q Mod Digital Predisto...

Страница 225: ...ates the correction values and displays the predistortion functions Figure 7 24 Predistortion Settings Polynomial Understanding the displayed information 1a Normalized value of the current RF RMS powe...

Страница 226: ...HAPing POLYnomial COEFficients CATalog on page 456 SOURce hw IQ DPD SHAPing POLYnomial COEFficients LOAD on page 456 SOURce hw IQ DPD SHAPing POLYnomial COEFficients STORe on page 457 System Coordinat...

Страница 227: ...he setting and exits the dialog Remote command n a 7 6 3 5 Normalized Data Settings The normalized data table is an internal editor where you define the correction values Vin Vmax V V and Phase in for...

Страница 228: ...however predefined The normalized data files are files with extension dpd_norm see File format of the normalized data on page 183 Remote command SOURce hw IQ DPD SHAPing NORMalized DATA CATalog on pag...

Страница 229: ...urrent state of the RF output activated and deactivated is indicated in the main panel by the different block color blue or grey and the status On Off Remote command OUTPut STATe on page 328 7 7 2 Ope...

Страница 230: ...Frequency Phase Frequency and set the frequency at the RF output b Select SGMA GUI main panel Freq and set the frequency The value includes possible frequency offset 2 To enable frequency offset for e...

Страница 231: ...a Phase Display Resets delta phase value The set phase is adopted as the new current phase i e the delta phase value is reset to 0 Remote command SOURce PHASe REFerence on page 460 7 7 4 Local Oscilla...

Страница 232: ...rature differences which cause slightly different phase drifts for the different synthesizers Most critical for a stable delta phase is the thermal RF phase fluctuation between multi ple RF synthesize...

Страница 233: ...nal is provided LO The signal of the local oscillator LO is available at the REF LO OUT connector REF The signal of the reference oscillator is available at the REF LO OUT connector Remote command CON...

Страница 234: ...al reference signal is used The frequency of the external reference signal must be selected with the parameter SGMA GUI Instrument Name RF Ref Oscillator Ex Ref Input Frequency Remote command SOURce R...

Страница 235: ...assembly RfBoard Remote command SOURce ROSCillator OUTPut FREQuency on page 470 REF LO Output Determines the signal provided at the output connector REF LO OUT OFF No signal is provided LO The signal...

Страница 236: ...ent value for the internal reference frequency This value is not used unless Adjustment Active On is selected 0 represents the calibrated state The setting range depends on the reference oscillator ty...

Страница 237: ...on Source Internal Base band and I Q Mod Modulation State ON it will be indicated in the R S SGMA GUI main panel by a change in the name of this parameter from Level to Level Off set Note The SCPI com...

Страница 238: ...ate OFFSet on page 469 Mode Allows you to optimize the RF output signal for applications where improved harmonic distortion or improved wideband noise is required Normal In normal mode the generator p...

Страница 239: ...Range Displays the level range within which the level setting is expected to work properly The range limits depend on several parameters like Mode Setting Characteristic the I Q signal s crest factor...

Страница 240: ...uator When this operating mode is switched on the attenuator is fixed in the current position to provide level settings without interruption The resulting variation range is defined and displayed with...

Страница 241: ...y setting the RF Off mode the electronic step attenuator can be fixed to keep the output impedance constant during RF off Remote command SOURce POWer ATTenuation RFOFf MODE on page 467 7 7 6 3 Power O...

Страница 242: ...ransmitter measurements State Sets the internal level control Table On Default mode First sets the level to the target value using the internal level table Then activates the level control circuit to...

Страница 243: ...in the list the level correction is determined by interpolation of the closest correction values The lists are created in the List Editor Each list is stored in its own file with the prede fined file...

Страница 244: ...s the File Select menu for selecting and creating a list or the File Manager Remote command SOURce CORRection CSET DELete on page 417 SOURce hw CORRection CSET SELect on page 421 Edit User Cor Data Ca...

Страница 245: ...nction allows you to automatically enter any num ber of frequencies with freely selectable range and increment Power dB Enters the level correction value to which the specified frequency applies Goto...

Страница 246: ...save the list under a new name Note Save list only after filling both columns frequency and level otherwise the entries are lost Each list is saved to the R S SGT hard disk as a separate file with th...

Страница 247: ...ge 419 Select ASCII Source Destination Calls the File Manager for selecting the ASCII file to be imported into a user correc tion list source or the ASCII file the user correction list is exported des...

Страница 248: ...automatic change of one or more of the other parameters The filling of the column with the selected value settings is started with button Fill The correction list entries are only computed when the F...

Страница 249: ...ncy or the level entries Remote command n a Fill Fills the selected column in the set range with values starting with the start value and using the set increment Remote command n a 7 7 6 7 Fill with S...

Страница 250: ...er the RF signal level might be blanked shortly This setting is recommended if blanking of RF is undesir able or the absence of power at the sensor cannot be guaranteed Execute The Execute button is o...

Страница 251: ...ng You can also browse the network for sensors The detected sensors are characterized by the used protocol and the correspond ing icon In the Mapping column you can assign the sensor to one of the ava...

Страница 252: ...e connected to the R S SGT in the following ways Connection to the USB connector via adapter cable Required are the following cables Adapter cable R S NRP Z3 or R S NRP Z4 USB Adapter Micro A to A Con...

Страница 253: ...ype B connectors 4 USB type B connector 4a External power supply unit and extra power cable 5 Adapter cable R S NRP Z3 or R S NRP Z4 per sensor Connection order Always connect the equipment in the fol...

Страница 254: ...lue Follow the following general recommendation to find out the optimum filter length Always start a measurement in auto mode Filter Auto Check if the measurement results are sufficient If the power i...

Страница 255: ...s also compensates the noise that superimposes the measured signal e g from a broadband amplifier Related settings and functions Measurements related settings like results filter filter length NRP Pow...

Страница 256: ...SLISt Subsystems on page 329 including the triggering of the measurement and the retrieval of measurement results Serial Number Indicates the type and the serial number of a connected R S NRP power se...

Страница 257: ...vate the permanent display for several sensors Remote command SENSe ch POWer DISPlay PERManent STATe on page 332 Priority Display Sets the display of results on mean or peak power Remote command SENSe...

Страница 258: ...red value The value is indicated with the parameter Filter Length With high signals the filter length and therefore the measurement time can be short With low signal levels the filter length and there...

Страница 259: ...y to one modulation period Remote command SENSe ch POWer APERture DEFault STATe on page 331 Aperture Time If Use Default Aperture Time Off defines the acquisition time per sensor For example to obtain...

Страница 260: ...SENSe ch POWer LOGGing STATe on page 336 7 7 9 Pulse Modulation This section explains the pulse modulation settings of the R S SGT To configure and perform a pulse modulation you need to select the m...

Страница 261: ...ulse Modulation Settings To access the pulse modulation settings select SGMA GUI Instrument Name RF Pulse Modulation The Pulse Modulation dialog contains all parameters required to configure pulse mod...

Страница 262: ...Impedance Selects the input impedance for an external pulse modulation signal Remote command SOURce hw PULM TRIGger EXTernal IMPedance on page 464 7 7 9 2 Pulse Generator Settings To access the pulse...

Страница 263: ...To access the pulse connector trigger settings select SGMA GUI Instrument Name RF Pulse Modulation Connector Trigger Comprises the settings necessary to configure the signal at the multi purpose TRIG...

Страница 264: ...Remote command CONNector USER ch OMODe on page 315 Trigger Mode Selects between continuous pulse modulation or pulse modulation triggered by an external signal Auto Generates the modulation signal co...

Страница 265: ...2 Output for a defined marker signal Trigger Trigger Out Input output for an external trigger signal Clock In Out Input Output for a clock signal Sync In Out Input Output for SYNC signals used for SYN...

Страница 266: ...SLOPe on page 316 Impedance Selects the input impedance for the modulation signal Remote command CONNector USER ch TRIGger IMPedance on page 316 CONNector USER ch CLOCk IMPedance on page 316 Threshol...

Страница 267: ...principle is that the R S SGT compensates the RMS levels of the externally supplied signal by the crest factor Figure 7 29 Relation between the level settings In the instrument level values are repre...

Страница 268: ...The sample rate of the signal at the digital interface can be determined with one of the following methods User defined sample rate Provide both the external signal source and the receiving instrumen...

Страница 269: ...es State Switches On Off the feeding of an external digital signal into the signal path On Switches On the external I Q input signal of the BB In block The input symbol displays the active signal mode...

Страница 270: ...aseband signal Sample Rate Source Selects the source for estimating the sample rate or defining it by the user User Defined Enables the user to define the sample rate in the entry field value Digital...

Страница 271: ...the con nected transmitter and recognizes changes automatically Remote command SOURce hw BBIN DIGital ASETting STATe on page 401 Measurement Period Sets the recording duration for measuring the baseb...

Страница 272: ...ndicates an overload Overflow Indicates that the I Q input is currently overloaded If overload is indicated either the amplitude of the external signal is too high full scale of 0 5 V and must be redu...

Страница 273: ...n be set in this dialog Frequency Offset Enters the frequency offset for the external baseband signal and shifts the useful base band signal in the center frequency Remote command SOURce hw BBIN FOFFs...

Страница 274: ...for adjustments All internal adjustments for which no external measuring equipment is needed can be started in the Internal Adjustments dialog The adjustments with external measuring equipment are de...

Страница 275: ...r leakage I Q imbalance and quadrature The adjustment is only possible when RF On and I Q Mod State On Adjustment for only the set frequency is considerably faster than adjustment across the entire fr...

Страница 276: ...Modulator FULL on page 312 8 2 Hardware Configuration Querying information about the installed assemblies Select SGMA GUI Instrument Name Setup Hardware Config In the Hardware Config dialog the instal...

Страница 277: ...l number of the assembly Revision Revision state of assembly Remote command R S SGT n a 8 3 Software Options Querying information about the installed options and software version Select SGMA GUI Instr...

Страница 278: ...nt e g also on changes of the firmware update procedure Hardware Software WinIQSIM The tables in the sections Hardware and Software list the installed hardware and software options Option Short name o...

Страница 279: ...ses https extranet rohde schwarz com service Only if the R S SGT is equipped with an older firmware version a firmware update before enabling the software option may be required The information on the...

Страница 280: ...6 On the source instrument select Manage License Keys Export Deactivation Response to File The instrument confirms the deactivation of the option The deactivation key response is exported under the s...

Страница 281: ...a portable license for information on how to activate deactivated licenses Manage Waveform Packages Opens the Manages Waveform Packages dialog The waveform packages licenses are provided for the regi...

Страница 282: ...se type is a joint qualification for the duration of applicability and the portability of a license The following license types are provi ded evaluation permanent portable quantified timed with durati...

Страница 283: ...4 provide access to protected service functions Only the authorized personnel of R S Service Departments can access these functions 8 7 Security Setting The R S SGT employs a security concept based o...

Страница 284: ...d for remote access to the instrument via VNC FTP or SAMBA Note It is highly recommended to change the default user password before connect ing the instrument to the network User Name Change User Pass...

Страница 285: ...he new security password The security password may contain decimal charac ters only Confirm Password Change Security Password Enter the new password for conformation The new password is only valid aft...

Страница 286: ...the settings accordingly 8 8 Maintenance The R S SGT provides a special dialog for performing some maintenance procedures like installing firmware packages To access this dialog select SGMA GUI Instru...

Страница 287: ...trument to the network To change the security password select SGMA GUI Instrument Name Setup Security Change Security Password The settings are only accepted after the Accept button is pressed Accept...

Страница 288: ...ted Hostname Displays the individual computer name of the instrument A predefined name is indicated and can be used for network connections see Chap ter 6 5 3 Finding Out the Default Hostname of the I...

Страница 289: ...e command SYSTem COMMunicate NETWork IPADdress on page 480 Subnet Mask Displays the subnet mask To enter the subnet mask manually select Address Mode Static This number is used together with the IP ad...

Страница 290: ...trol Interfaces and Protocols on page 276 Remote command SYSTem COMMunicate HISLip RESource on page 483 SYSTem COMMunicate NETWork RESource on page 482 SYSTem COMMunicate SOCKet RESource on page 484 S...

Страница 291: ...ulated via the Language command However once you have switched to an emulation the R S SGT specific command set is disabled that means this command is no longer effective To return you need to know th...

Страница 292: ...OPT String Indicates the option string of the instrument as queried with the common command OPT If Mode User Defined is selected a user defined option string can be created addi tionally to the automa...

Страница 293: ...the instrument s settings to their factory state Note Because Factory Preset resets the Remote Channel Settings and Network Settings to the default values executing factory preset via remote control m...

Страница 294: ...ic Tests Self test 2 To trigger a self test select Self test Performs a self test on all installed hardware options The result of the self test succeeded or failed is displayed The list of the numeric...

Страница 295: ...f Keyboard Test is enabled all front panel LEDs except the POWER ON are orange The exact test procedure is described in the service manual SCPI command TEST KEYBoard STATe on page 489 8 15 4 Simulatio...

Страница 296: ...to be simulated The block diagram and the provided signal generator settings are updated accord ingly You can open dialogs interact with functions or observe the influence of set tings as if the virt...

Страница 297: ...instrument to use its internal reference frequency source perform one of the following a Select SGMA GUI main panel Ext Ref Off b Select SGMA GUI Instrument Name RF Reference Oscillator Source Int 2...

Страница 298: ...Coupling Source The R S SGT can use two frequency sources for the carrier frequency LO signal of the I Q modulator an internal and an external one The first possibility is to use the out put signal o...

Страница 299: ...the REF LO OUT connector 1 In the Frequency Phase Local Oscillator LO Coupling dialog select the LO Source as required 2 In the Reference Oscillator dialog select the Ref Oscillator Source as require...

Страница 300: ...play a waveform file from an external computer 1 Connect the R S SGT and a Windows PC with an installed R S SGMA GUI to the same network 2 On the remote PC select SGMA GUI Instrument Name Baseband ARB...

Страница 301: ...SGMA GUI controls POWER ON STANDBY POWER SWITCH On Off Hardkey controls on the front rear panel of the instrument The Table 9 2 provides a short description of the operating states and their indicatio...

Страница 302: ...lly stored The instrument switches to a power saving mode In the R S SGMA GUI the standby state is indicated by the red state symbol in front of the corresponding instrument s name on the front panel...

Страница 303: ...of the Instrument on page 65 To query and change a computer name To avoid violations and to make use of the easy identification provided by the computer name it is recommended to keep the default host...

Страница 304: ...o line The update process is indicated by an LED running light Note The update procedure requires a restart of the instrument The restart is per formed automatically The instrument is not accessible d...

Страница 305: ...s R S SGT100A 274 User Manual 1176 8674 02 07 4 Enter the user name and password to connect to the R S SGT The default user name is instrument and the password is instrument How to Install a New Firmw...

Страница 306: ...or a description of the displayed error code or contact the customer support center 9 10 How to Activate Options A firmware update before the activation of the SW option may be required Refer to the d...

Страница 307: ...l In addition this chapter provides information on the status reporting sys tem of the instrument 10 1 Remote Control Interfaces and Protocols The instrument supports several interfaces for remote con...

Страница 308: ...te control while using socket communication For more information about VISA refer to the user documentation Rohde Schwarz provides the standardized I O software library R S VISA for com munication via...

Страница 309: ...parts are highlighted Remote control program using VISA Figure 10 2 Remote control program using VISA Protocol Remote control program Socket viOpen TCPIP rssgt100a100010 5025 SOCKET viPrintf SOUR FREQ...

Страница 310: ...sgt_init TCPIP rssgt100a100010 inst0 INSTR rssgt_SetFrequency 2e9 HiSLIP rssgt_init TCPIP rssgt100a100010 hislip0 INSTR rssgt_SetFrequency 2e9 USBTMC rssgt_init USB 0x0aad 0x00EC 1000010 INSTR rssgt_S...

Страница 311: ...own IP address and associated resource string The controller identifies these instruments by the resource string 10 1 2 1 VISA Resource Strings The VISA resource string is required to establish a comm...

Страница 312: ...munication TCPIP host address port SOCKET port determines the used port number SOCKET indicates the raw network socket resource class Socket communication requires the specification of the port common...

Страница 313: ...standard is based on the ONC RPC Open Network Computing Remote Procedure Call protocol which in turn relies on TCP IP as the network transport layer The TCP IP network protocol and the associated netw...

Страница 314: ...er on the rear of the instrument INSTR indicates the instrument resource class optional You can retrieve the USB resource string from the SGMA GUI Instrument Name Setup Remote dialog Example USB 0x0AA...

Страница 315: ...nt 2 Use a GPIB bus cable to connect the instrument and the controller 3 Provide the GPIB bus card the card drivers and the program libraries for the pro gramming language in the controller 4 In the S...

Страница 316: ...GMA GUI main panel Instrument name Setup Remote Channels dialog 10 2 1 How to Find the VISA Resource String To find the VISA resource strings of your instrument Select SGMA GUI main panel Instrument n...

Страница 317: ...name of the R S SGT and the number of the port configured for remote control via telnet Tip The R S SGT uses the port number 5025 for remote connection via Telnet The connection to the instrument is s...

Страница 318: ...er possible currently only for the parameters frequency level RF state modulator state and sends SCPI messages in all other cases Remote control programs written for PCIe will without modifications al...

Страница 319: ...3 3 1 Building and Installing the Hardware Driver The hardware driver defines the way to communicate with the instrument via PCIe interface For Windows operating systems the hardware driver is install...

Страница 320: ...e these two files to usr lib or lib directory Windows operating system To make the libraries accessible perform one of the following a Copy these two files to the folder of your executable b Copy thes...

Страница 321: ...Quit f value Set frequency f Query frequency l value Set level l Query level r value Set RF state value 0 1 ON OFF r Query RF state If you enter an additional optional command SgtDriverDemo executes...

Страница 322: ...is constantly on 5 Switch on the external PC 10 3 5 Enabling Fast Settings To enable the special PCI express feature fast settings enable the function rssgt_UseFastSettings ViSession instrumentHandle...

Страница 323: ...ge 287 Windows operating systems To set up a remote control connection via fast socket for Windows operating systems perform the following steps 1 Connect the controller and the instrument see Chapter...

Страница 324: ...ion Properties dialog 4 Click Install to open the Select Network Feature Type dialog 5 Select Protocol and select Add 6 In the Select Network Protocol dialog select Have Disk Navigate to the directory...

Страница 325: ...Parameter Value TCP IP mode DHCP Auto IP Address Dynamic DNS Enabled ICMP ping Enabled Password for LAN configuration LxiWebIfc The LAN reset also resets the following parameters for the R S SGT Param...

Страница 326: ...red symbol indicates that no LAN cable is connected Lan Configuration allows you to configure LAN parameters and to initiate a ping see Chapter 10 5 3 LAN Configuration on page 295 Status displays inf...

Страница 327: ...he IP address of the instru ment With static configuration the entered IP address subnet mask and default gate way are used With dynamic configuration DHCP or dynamic link local addressing automatic I...

Страница 328: ...the LAN If you disable this setting the instrument cannot be detected by the VXI 11 discov ery protocol mechanism The setting does not affect other detection mechanisms Setting up a VXI 11 connection...

Страница 329: ...te control interface of the R S SGT see Chapter 10 5 4 How to Record SCPI Commands and Messages exchanged via the LXI Web Browser Interface on page 300 A recorded trace message log can be evaluated di...

Страница 330: ...the internal database and displays it Download stores the SCPI trace log to a csv file Clear deletes all message log entries in the database and at the screen Details displays details of the selected...

Страница 331: ...lity allows you to trace commands and messages exchanged via a remote control interface of the R S SGT To activate the SCPI remote trace 1 Start a web browser that supports html5 W3C compliant 2 Enter...

Страница 332: ...remote PC on which the R S SGMA GUI is installed and the controller is the remote PC on which the application program runs Simultaneous control of an instrument from a controller and a monitor may le...

Страница 333: ...ays uses the LAN device name instr1 see also Chap ter 10 1 2 3 VXI 11 Protocol on page 282 X communication is not possible without collisions viLock viUnlock communication is only possible if the remo...

Страница 334: ...the limitations described in Table 10 2 2 Configure the instrument in the R S SGMA GUI see Chapter 6 5 2 Handling Instruments in the R S SGMA GUI on page 63 3 In the SGMA GUI Setup Instruments Edit In...

Страница 335: ...cated as Return values Conformity Commands that are taken from the SCPI standard are indicated as SCPI con firmed All commands used by the R S SGT follow the SCPI syntax rules Asynchronous commands A...

Страница 336: ...ers to zero The command does not alter the mask and transition parts of the registers It clears the output buffer Usage Setting only ESE Value Event status enable Sets the event status enable register...

Страница 337: ...y OPC Operation complete Sets bit 0 in the event status register when all preceding commands have been execu ted This bit can be used to initiate a service request The query form writes a 1 into the o...

Страница 338: ...configured The query reads out the contents of the power on status clear flag Parameters Action 0 1 0 The contents of the status registers are preserved 1 Resets the status registers RCL Number Recal...

Страница 339: ...e service request enable register to the indicated value This command deter mines under which conditions a service request is triggered Parameters Contents Contents of the service request enable regis...

Страница 340: ...s until all preceding commands have been executed and all signals have settled see also command synchronization and OPC Usage Event 11 2 General Commands RESTart 309 STANdby 309 LOCK 309 UNLock 310 RE...

Страница 341: ...parameters UnlockId Number Unlock ID which uniquely identifies the controller to the instru ment The value must match the Controller ID Lock Request Id set with the command LOCK 0 Clear lock regardle...

Страница 342: ...e of delivery Example SYST FPR all instrument settings also those that are not currently active are reset to the factory values Usage Event Manual operation See Execute Factory Preset on page 262 11 4...

Страница 343: ...ual operation See Synthesis on page 244 CALibration IQModulator FULL Starts the adjustment of the I Q modulator for the entire frequency range The I Q mod ulator is adjusted with respect to carrier le...

Страница 344: ...ues Temperature string Usage Query only CALibration hw ROSCillator DATA Data Sets the calibration value for the custom defined external adjustment Parameters Data integer Range 0 to INT_MAX RST 0 11 5...

Страница 345: ...f bit or symbol clock pulses at the USER 1 2 connector at the rear panel Parameters Mode SYMBol BIT RST SYMBol Example CLOC OUTP MODE SYMB The internal symbol clock is output 11 6 CONNector Subsystem...

Страница 346: ...1 2 TRIGger trigger CIN clock in COUT clock out SIN sync in SOU sync out NEXT next trigger SVALid SNValid signal valid not valid PVOut pulse generator video out PETRigger pulse generator external tri...

Страница 347: ...r USER ch CLOCk SLOPe Slope CONNector USER ch TRIGger SLOPe Slope Sets the polarity of the active slope of an applied instrument trigger clock Parameters Slope NEGative POSitive RST POSitive Manual op...

Страница 348: ...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 fl...

Страница 349: ...he 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 hexa...

Страница 350: ...he extension is separated from the actual file name by a dot see Chap ter 11 9 2 Extensions for User Files on page 320 for an overview of the file types The two characters and function as wildcards me...

Страница 351: ...store the settings in a file in the default drive set the default drive and specify only the file name MMEM CDIR var user SAV 4 MMEM STOR STAT 4 test savrcltxt 4 Load the file test savrcltxt in the us...

Страница 352: ...Remote Control Commands MMEMory CATalog 321 MMEMory CATalog LENGth 322 MMEMory CDIRectory 322 MMEMory COPY 322 MMEMory DATA 323 MMEMory DCATalog 323 MMEMory DCATalog LENGth 324 MMEMory DELete 324 MEMo...

Страница 353: ...rrent directory queried with MMEMory CDIRectory command Return values FileCount integer Number of files Usage Query only MMEMory CDIRectory Directory Changes the default directory for mass memory stor...

Страница 354: ...data Hash sign always comes first in the binary block number the first digit indicates how many digits the subse quent length entry has length_entry indicates the number of subsequent bytes data bina...

Страница 355: ...rectory Query parameters Path String parameter to specify the directory If the directory is omit ted the command queries the contents of the current directory to be queried with MMEMory CDIRectory com...

Страница 356: ...mass memory storage in the specified directory If no direc tory is specified a subdirectory is created in the default directory This command can also be used to create a directory tree Setting parame...

Страница 357: ...le_name Stores the current instrument setting in the specified file The instrument setting must first be stored in an internal memory with the same num ber using the common command SAV Setting paramet...

Страница 358: ...TPut AFIXed RANGe UPPer 327 OUTPut AMODe 327 OUTPut STATe 328 OUTPut STATe PON 328 OUTPut AFIXed RANGe LOWer Queries the minimum level which can be set without the attenuator being adjusted Attenuator...

Страница 359: ...the resulting variation range is defined RST AUTO Manual operation See Mode on page 209 OUTPut STATe State Activates the RF output signal RF ON OFF Parameters State 0 1 OFF ON Manual operation See RF...

Страница 360: ...rameters are set with the SENSe commands To start the measurement and retrieve the result use the READ ch POWer command INITiate ch POWer CONTinuous 330 READ ch POWer 330 SENSe ch UNIT POWer 331 SENSe...

Страница 361: ...state of continuous power measurement on Manual operation See State on page 226 READ ch POWer Triggers power measurement and displays the results The sensor returns the result in the unit set with co...

Страница 362: ...it for the measured value returned by com mand READ READ2 Response 7 34 7 34 dBm are measured by sensor 2 Manual operation See Level Peak Level Average on page 225 SENSe ch POWer APERture DEFault STAT...

Страница 363: ...CORR SPD STAT ON Activates the use of the S parameters correction data of power sensor 1 Manual operation See Use SParameter on page 228 SENSe ch POWer DISPlay PERManent PRIority Priority Selects aver...

Страница 364: ...ER User Selects the filter length for SENS POW FILT TYPE USER As the filter length works as a multiplier for the time window a constant filter length results in a constant measure ment time You can se...

Страница 365: ...ange 1 to 999 99 Increment 0 01 RST 4 Example SENS1 FILT TYPE NSR Selects fixed noise filter mode SENS1 FILT NSR 2 Sets a noise content of 0 2 SENS1 FILT NSR MTIM 5 Limits the settling time to 5 secon...

Страница 366: ...crite rion that the intrinsic noise of the sensor 2 standard deviations does not exceed the specified noise content You can define the noise content with command SENSe ch POWer FILTer NSRatio Note To...

Страница 367: ...vel offset allows e g to consider an attenuator in the signal path Parameters Offset float Range 100 0 to 100 0 RST 0 Default unit dB Example SENS1 POW OFFS 10 0 Sets a level offset of 10 dB Manual op...

Страница 368: ...erence level Parameters Source A USER RF RST A Example SENS1 SOUR RF The sensor measures the power of the RF signal Manual operation See Source on page 226 SENSe ch POWer STATus DEVice Queries if a se...

Страница 369: ...ntervals at least once a day if The temperature has varied more than about 5 C The sensor has been replaced You want to measure very low power Note The RF power source must be switched off or disconne...

Страница 370: ...from the list to the first sensor channel Usage Query only Manual operation See Sensor Mapping List on page 220 SLISt SCAN STATe State Starts the search for R S NRP power sensors connected in the LAN...

Страница 371: ...tem 407 SOURce BB PROGress Subsystem General Commands 412 SOURce BB POWer Subsystem 413 SOURce CORRection Subsystem 414 SOURce IQ Subsystem 423 SOURce IQ OUTPut Subsystem 425 Analog I Q Output 429 SOU...

Страница 372: ...oat Range 3e9 to 3e9 Increment 1E 3 RST 0 Example SOURce FREQuency OFFSet 0 SOURce FREQuency CW 2143000000 SOURce FREQuency OFFSet 20000000 SOURce FREQuency CW 2163000000 Manual operation See Offset o...

Страница 373: ...SOURce hw AWGN BWIDth NOISe 343 SOURce hw AWGN BWIDth RATio 344 SOURce hw AWGN CNRatio 344 SOURce hw AWGN DISP MODE 344 SOURce hw AWGN DISP ORESults 345 SOURce hw AWGN ENRatio 345 SOURce hw AWGN FREQ...

Страница 374: ...re This command is available for modes Additive Noise and Noise Only SOUR AWGN MODE ADD ONLY Parameters BWidth float Range 1000 to depends on the installed options Increment 100 RST 3 84E6 Example SOU...

Страница 375: ...se system bandwidth ratio of 2 Manual operation See Minimum Noise System Bandwidth Ratio on page 126 SOURce hw AWGN CNRatio CnRatio In Additive Noise and CW Interferer SOUR AWGN MODE ADD CW mode sets...

Страница 376: ...signal of path A SOURce hw AWGN ENRatio EnRatio In Additive Noise mode sets the ratio of bit energy to noise power density For Digital Standard signals the bit rate used for calculation of Eb N0 valu...

Страница 377: ...Selects the mode for generating the interfering signal Parameters Mode ONLY ADD CW ADD The AWGN noise signal is added to the baseband signal ONLY The pure AWGN noise signal is modulated to the carrie...

Страница 378: ...Mode CN SN EN CN SN The noise power is set on the basis of the value entered for the carrier noise or signal noise ratio SOURce AWGN CNRatio SNRatio EN The noise power is set on the basis of the value...

Страница 379: ...float Range 145 to 20 Increment 0 01 RST 30 Example SOURce AWGN POWer NOISe TOTal queries the noise power in the total bandwidth Response 15 the noise power in the total bandwidth is 15 dBm Usage Que...

Страница 380: ...to 20 Increment 0 01 RST 0 Example SOURce AWGN POWer SUM queries the overall power of the noise signal plus useful signal Usage Query only Manual operation See Carrier Noise Power Signal Noise Power S...

Страница 381: ...ut SOURce BB FOFFset 350 SOURce BB POFFset 350 SOURce hw BB PGAin 351 SOURce BB INFO PSEQuencer 351 SOURce BB FOFFset Foffset Sets the frequency offset for the baseband signal The offset affects the s...

Страница 382: ...OURce OUTput subsystems For option R S SGT K540 envelope tracking the ARB for envelope tracking can be enabled when SCONfiguration MODE is set to AFETracking Then the numeric suffix to SOURce distingu...

Страница 383: ...rom the default directory SOURce1 BB ARBitrary TRIGger SEQ RETR sets trigger mode Retrigger SOURce1 BB ARBitrary STATe ON switches on the ARB generator The selected waveform is out put straight away A...

Страница 384: ...ock rate to 0 5 MHz Manual operation See Clock Frequency on page 82 SOURce hw BB ARBitrary CLOCk MODE Mode The command enters the type of externally supplied clock BB ARB CLOCk SOURce EXTernal When MS...

Страница 385: ...INTernal The internal clock reference is used EXTernal The external clock reference is supplied to the connector RST INTernal Example BB ARB CLOC SOUR EXT selects an external clock reference The cloc...

Страница 386: ...xample BB ARB CLOC SYNC MODE MAST the instrument is configured to work as a master one BB ARB CLOC SYNC EXEC all synchronization s settings are adjusted accordingly Usage Event 11 14 4 3 Trigger Setti...

Страница 387: ...XEC executes a trigger waveform output is started BB ARB TRIG ARM EXEC waveform output is stopped BB ARB TRIG EXEC executes a trigger waveform output is started again Usage Event Manual operation See...

Страница 388: ...external triggering BB ARB TRIG EXT SYNC OUTP ON enables synchronous output to external trigger Manual operation See Sync Output to External Trigger on page 112 SOURce hw BB ARBitrary TRIGger OUTPut...

Страница 389: ...Manual operation See Running Stopped on page 111 SOURce hw BB ARBitrary TRIGger SLENgth SLength The command defines the length of the signal sequence to be output in the Single trig ger mode The unit...

Страница 390: ...uration Unit on page 111 SOURce hw BB ARBitrary TRIGger SMODe SMode The command selects the extended trigger mode for multi segment waveforms Parameters SMode SAME NEXT NSEam SEQuencer NSEam Next Segm...

Страница 391: ...01 RST 0 Default unit sample Example BB ARB TRIG SOUR EXT selects an external trigger BB ARB TRIG DEL 200 sets a delay of 200 samples for the trigger Manual operation See Trigger Delay on page 113 SOU...

Страница 392: ...hibited following a trigger event This command applies only in the case of external triggering Parameters Inhibit integer Range 0 to 67108863 RST 0 Default unit sample Example BB ARB TRIG SOUR EXT sel...

Страница 393: ...veform is output once to the set sequence length SOUR BB ARB TRIG SLEN Every subse quent trigger event causes a restart RST RETRigger Example BB ARB SEQ AAUT sets the Armed_auto trigger mode the devic...

Страница 394: ...ser definable bit pattern The bit pattern is entered with the aid of com mand BB ARB TRIGger OUTPut PATTern The bit pattern is a maximum of 32 bits long RATio A regular marker signal corresponding to...

Страница 395: ...IGger OUTPut MODE PULSe The pulse frequency is derived by dividing the symbol rate by the divider Parameters Divider integer Range 2 to 1024 RST 2 Manual operation See Marker Mode on page 120 SOURce h...

Страница 396: ...rker outputs and the start of the signals Parameters Delay float Range 0 to depends on other values Increment 0 001 RST 0 Default unit Symbol Manual operation See Marker x Delay on page 120 11 14 4 5...

Страница 397: ...al SINE CREate NAMed Filename Generates a signal and saves it to a waveform file Setting parameters Filename string Example BB ARB TSIG SINE CRE NAM sine_test generates a test sine signal and saves it...

Страница 398: ...ent 0 01 RST 1000 Example SOURce BB ARBitrary TSIGnal RECTangle FREQuency 100 kHz sets the frequency of the test signal of 100 kHz Manual operation See Frequency on page 107 SOURce hw BB ARBitrary TSI...

Страница 399: ...ets a sine signal of 100 kHz Manual operation See Frequency on page 106 SOURce hw BB ARBitrary TSIGnal SINE PHASe Phase The command sets the phase offset of the sine wave on the Q channel relative to...

Страница 400: ...ARrier CFACtor MODE 373 SOURce hw BB ARBitrary MCARrier CLIPping CFACtor 374 SOURce hw BB ARBitrary MCARrier CLIPping CUToff 374 SOURce hw BB ARBitrary MCARrier CLIPping STATe 375 SOURce hw BB ARBitra...

Страница 401: ...ncy in the carrier table is not configurable ARBitrary Enables you to specify the carrier frequency in the carrier table Carrier spacing is irrelevant RST EQUidistant Example BB ARB MCAR CARR MODE EQU...

Страница 402: ...z sets a carrier spacing of 10 MHz Manual operation See Carrier Spacing on page 97 SOURce hw BB ARBitrary MCARrier CARRier ch CONFlict Queries carrier conflicts A conflict arises when the carriers ove...

Страница 403: ...idis tant Carrier Spacing the carrier spacing is determined automatically Parameters Frequency integer Vvalue range depends on the max bandwidth see data sheet Range 40E6 to 40E6 RST 0 Example BB ARB...

Страница 404: ...Rrier POWer REFerence Reference Defines the way the individual carriers in a composed multi carrier signal are leveled Parameters Reference RMS PEAK RST RMS Manual operation See Power Reference on pag...

Страница 405: ...ctor optimization The setting SOUR BB ARB MCAR CARR PHAS has an effect Manual operation See Crest Factor Mode on page 97 SOURce hw BB ARBitrary MCARrier CLIPping CFACtor CFactor Sets the value of the...

Страница 406: ...lipped peak power is defined by sum of the the RMS level of the unclip ped multi carrier signal and the input parameter Target Crest Factor Note that clipping reduces also the RMS level Hence the resu...

Страница 407: ...riers carrier spacing and input sample rate of the leftmost or rightmost carri ers Return values Clock float Range 400 to Max Increment 1E 3 Example BB ARB MCAR CLOC queries the ARB multi carrier outp...

Страница 408: ...ge 103 SOURce hw BB ARBitrary MCARrier EDIT CARRier DELay STARt Start The command sets the start delay for the individual carriers in the defined carrier range If the command BB ARB MCAR EDIT CARR DEL...

Страница 409: ...ARB MCAR EDIT CARR FILE var user IQ_wcdma Manual operation See Input Waveform File on page 103 SOURce hw BB ARBitrary MCARrier EDIT CARRier PHASe STEP Step The command sets the step width by which th...

Страница 410: ...l operation See Phase Start on page 102 SOURce hw BB ARBitrary MCARrier EDIT CARRier POWer STEP Step The command sets the step width by which the starting power of the carriers in the defined carrier...

Страница 411: ...integer Range 0 to 511 RST 0 Example BB ARB MCAR EDIT CARR STOP 4 the carrier range stops at carrier 4 Manual operation See Carrier Stop on page 102 SOURce hw BB ARBitrary MCARrier EDIT CARRier STATe...

Страница 412: ...samples Return values Samples integer Range 0 to INT_MAX RST 0 Example BB ARB MCAR SAMP queries the file size of the currently calculated multi carrier waveform Usage Query only Manual operation See F...

Страница 413: ...stores the current settings of submenu Multi Carrier in a file in the specified directory The file extension may be omitted the files are stored with the file extension arb_multcarr Setting parameters...

Страница 414: ...e irre spective of their state ON OFF Parameters Mode LONG SHORt LCM USER LONG The resulting signal period is defined by the longest I Q file in the carrier table Shorter I Q files are periodically re...

Страница 415: ...es in the default directory The default directory is set using command MMEM CDIRectory When the names of the waveform files are returned they are sep arated by commas Only files with the file extensio...

Страница 416: ...s out the I Q data part or the marker information of the specified file Waveform files can also be created with the command SOURce hw BB ARBitrary WAVeform DATA In this case the complete content of th...

Страница 417: ...543218978 the specified I Q data is added to a file named wave wv in the specified directory MMEMory DATA UNPRotected NVWFM var user wave wv MMEMory DATA UNPRotected NVMKR var user wave wv 185 7uuf5 t...

Страница 418: ...rm file the binary data will be copied to The file extension wv may be omitted Setting parameters Data block data Contents of the waveform file as a definite length binary block Query parameters Tag c...

Страница 419: ...y SOURce hw BB ARBitrary WAVeform HDDStreaming BLEVel Queries the filling level of the streaming buffer Return values BLevel integer Range 0 to 100 RST 0 Example SOURce1 BB ARBitrary WAVeform HDDStrea...

Страница 420: ...lues pairs Usage Query only SOURce hw BB ARBitrary WAVeform SELect Filename Selects the waveform file If the file is not on the default path the path must be speci fied The file extension may be omitt...

Страница 421: ...ment CONFigure OFILe 395 SOURce hw BB ARBitrary WSEGment CONFigure SEGMent APPend 396 SOURce hw BB ARBitrary WSEGment CONFigure SEGMent CATalog 396 SOURce hw BB ARBitrary WSEGment CONFigure SELect 396...

Страница 422: ...EG CONF OFIL mseg1_2 defines the file name mseg1_2 wv for the multi segment wave form BB ARB WSEG CLO var user multi_sin inf_mswv creates multi segment waveform mseg1_2 wv using the set tings of the c...

Страница 423: ...nse mulit1 multi2 the directory contains the configuration files multi1 inf_mswv and multi2 inf_mswv Usage Query only Manual operation See Load List on page 85 SOURce hw BB ARBitrary WSEGment CONFigur...

Страница 424: ...gure COMMent Comment This command enters a comment for the configuration file The configuration file must be specified with command BB ARB WSEG CONF SEL Parameters Comment string Example BB ARB WSEG C...

Страница 425: ...als in the individual segment waveform files are not considered Parameters Mode OFF MRK1 MRK2 MRK3 MRK4 OFF No additional marker is generated MRK1 MRK2 MRK3 MRK4 Generates a restart marker signal at t...

Страница 426: ...Nore TAKE IGNore The marker information carried in the individual segment wave form files is not considered TAKE The output waveform file contains the marker information as configured in the individua...

Страница 427: ...t CONFigure SEGMent CATalog Queries the segments of the currently selected configuration file Return values Catalog string Example MMEM CDIR var user waveform sets the default directory BB ARB WSEG CO...

Страница 428: ...eates the configuration file new inf_mswv in the default directory BB ARB WSEG CONF SEGM APP arb1 wv includes waveform arb1 wv as segment 1 in the configuration file The waveform must be available in...

Страница 429: ...WAV SEL multi_wv1 loads multi segment waveform multi_wv1 wv Generation of segment 2 starts BB ARB WSEG NEXT 3 switched at once to output of segment 3 Manual operation See Next Segment on page 114 SOUR...

Страница 430: ...input on the NEXT connector RST INTernal Example BB ARB WSEG NEXT SOUR INT selects internal next segment source SOURce hw BB ARBitrary WSEGment SEQuence APPend State Segment Count Next Appends a new...

Страница 431: ...s Manual operation See Append on page 93 11 14 5 SOURce BBIN Subsystem The SOURce BBIN subsystem contains the commands for setting the external digital baseband signals SOURce hw BBIN ALEVel EXECute 4...

Страница 432: ...the connected device ID Usage Query only Manual operation See Connected Device on page 238 SOURce hw BBIN CFACtor CFactor This command enters the crest factor of the external baseband signal Paramete...

Страница 433: ...ent 0 01 RST 0 Default unit Hz Example BBIN FOFF 2 MHz sets a frequency offset of 2 MHz Manual operation See Frequency Offset on page 242 SOURce hw BBIN GIMBalance GImbalance This command enters a gai...

Страница 434: ...e estimated or defined by the user in the appropriate entry fields RST ANALog Example BBIN SOUR ANAL selects an external analog signal as the input signal The signal must be applied at the inputs I an...

Страница 435: ...can be reset via the Reset command or is reset auto matically by starting a new measurement Auto Level Set or by setting new values Crest Factor Peak Level Level Return values State 0 1 OFF ON RST 0 E...

Страница 436: ...ng but also on the signal characteristics such as the crest factor and on the number of used sources used and on the total RF output power The gain affects the signal on the Baseband In block output P...

Страница 437: ...ve values repre sent a delay for Q versus I Parameters Skew float Range 1E 9 to 1E 9 Increment 1E 12 RST 0 Default unit s Example BBIN SKEW 23PS enters a delay between Q and I channel of 23 picosecond...

Страница 438: ...nal must be applied at the inputs I and Q BBIN STAT ON switches on the Baseband In block The external analog signal is A D converted and fed into the digital signal Manual operation See State on page...

Страница 439: ...E 12 RST 0 Example BB IMP DEL 32 0E 9 sets the I Q delay Manual operation See IQ Delay on page 141 SOURce hw BB IMPairment IQRatio MAGNitude IqRatio This command sets the ratio of I modulation to Q mo...

Страница 440: ...to 3 percent Manual operation See I Q Offset on page 140 SOURce hw BB IMPairment QUADrature ANGLe Angle This command sets the quadrature offset for the digital I Q signal Parameters Angle float Range...

Страница 441: ...to input into the I Q modulator Parameters State 0 1 OFF ON RST 0 Example BB IMP STAT OFF deactivates digital impairment Manual operation See State on page 139 SOURce hw BB IMPairment OPTimization MOD...

Страница 442: ...Pairment IQOutput ch DELay Delay Defines the time delay of both I and Q vectors between the marker signal at the marker outputs relative to the signal generation start A positive value means that the...

Страница 443: ...n the Q vector and the I vector of the corresponding stream Parameters Skew float Range 500E 9 to 500E 9 Increment 1E 12 RST 0 Manual operation See Skew on page 141 SOURce BB IMPairment IQOutput ch LE...

Страница 444: ...initiated process like for example the calculation of a signal in accordance to a digital standard or the calculation of a multi carrier or multi segment waveform file Return values WSegment integer...

Страница 445: ...14 9 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 f...

Страница 446: ...tion DEXChange MODE 420 SOURce hw CORRection DEXChange SELect 421 SOURce hw CORRection CSET SELect 421 SOURce hw CORRection STATe 422 SOURce hw CORRection VALue 422 SOURce hw CORRection ZERoing STATe...

Страница 447: ...0 RST 0 Example CORR CSET var user selects the table ucor1 CORR CSET DATA FREQ POIN queries the number of frequency values in the table ucor1 Response 440 the table ucor1 contains 440 frequency values...

Страница 448: ...RR CSET DATA SENS POW SONC fills the user correction list with level values acquired by the power sensor connector to the SENSOR connector Usage Event Manual operation See Fill User Correction Data wi...

Страница 449: ...IL CAT queries the available files with extension txt Response ucor1 ucor2 the ASCII files ucor1 txt and ucor2 txt are available Usage Query only SOURce hw CORRection DEXChange AFILe EXTension Extensi...

Страница 450: ...SCII Source Destination on page 216 SOURce hw CORRection DEXChange AFILe SEParator COLumn Column Selects the separator between the frequency and level column of the ASCII table Parameters Column TABul...

Страница 451: ...le is imported as user correction list When export is selected the user correction list is exported into the selected ASCII file Example CORR DEXC MODE IMP selects that ASCII files with frequency and...

Страница 452: ...files are stored or loaded in the specified directory Parameters Filename string Example CORR DEXC MODE IMP selects that ASCII files with frequency and level value pairs are imported and transferred...

Страница 453: ...ple SOUR CORR CSET var user ucor1 selects the table ucor1 SOUR CORR ON activates user correction Manual operation See State on page 213 SOURce hw CORRection VALue Queries the current value for user co...

Страница 454: ...IQ CREStfactor CrestFactor Sets the crest factor of the IQ modulation signal Parameters CrestFactor float Range 0 to 35 Increment 0 01 RST 0 Manual operation See Crest Factor on page 138 SOURce IQ IMP...

Страница 455: ...e IQ IMPairment STATe State Activates deactivates the three impairment or correction values LEAKage QUADra ture and IQRatio for the baseband signal prior to input into the I Q modulator Parameters Sta...

Страница 456: ...als Parameters State 0 1 OFF ON RST 0 Manual operation See I Q Wideband on page 137 11 14 11 SOURce IQ OUTPut Subsystem SOURce hw IQ OUTPut ANALog STATe 426 SOURce hw IQ OUTPut ANALog PRESet 426 SOURc...

Страница 457: ...r 1 the I Q ouptput type set with the command SOURce hw IQ OUTPut ANALog TYPE Usage Event Manual operation See Set to Default on page 142 SOURce hw IQ OUTPut ANALog SETTing CATalog Queries the files w...

Страница 458: ...ry Deleted are files with the file extension iqout Setting parameters Filename filename Filename or complete file path Usage Setting only Manual operation See Save Recall on page 143 SOURce hw IQ OUTP...

Страница 459: ...Sets the off load voltage of the analog I Q signal output The value range and maximum overall voltage vary depending on the I Q output type See Table 7 4 Parameters Level float Range 0 02 to 4 Increm...

Страница 460: ...ibes the commands of the output of an analog I Q signal SOURce hw IQ OUTPut ANALog STATe 429 SOURce hw IQ OUTPut ANALog TYPE 429 SOURce hw IQ OUTPut ANALog BIAS COUPling STATe 430 SOURce hw IQ OUTPut...

Страница 461: ...See Couple I Q Bias on page 144 SOURce hw IQ OUTPut ANALog BIAS I I SOURce hw IQ OUTPut ANALog BIAS Q Q Specifies the amplifier bias of the respective I or Q component The maximum overall voltage depe...

Страница 462: ...Q OUTP MODE VAR SOUR IQ OUTP ANAL POW LEV 2V Manual operation See Mode on page 144 SOURce hw IQ OUTPut ANALog OFFSet I I SOURce hw IQ OUTPut ANALog OFFSet Q Q Sets an offset between the inverting and...

Страница 463: ...ope TERMination GROund SOURce1 IQ OUTPut ANALog ENVelope BINPut 1 SOURce1 IQ OUTPut ANALog ENVelope VCC OFFSet 2 SOURce1 IQ OUTPut ANALog ENVelope VCC MIN 0 5 SOURce1 IQ OUTPut ANALog ENVelope VCC MAX...

Страница 464: ...ENVelope SHAPing INTerp LIN SOURce1 IQ OUTPut ANALog ENVelope SHAPing SCALe POWer change the envelope shaping mode SOURce1 IQ OUTPut ANALog ENVelope SHAPing MODE POLY query files with polynomial func...

Страница 465: ...VOUT MIN 437 SOURce hw IQ OUTPut ANALog ENVelope VOUT MAX 437 SOURce hw IQ OUTPut ANALog ENVelope BIAS 437 SOURce hw IQ OUTPut ANALog ENVelope OFFSet 437 SOURce hw IQ OUTPut ANALog ENVelope VPP MAX 43...

Страница 466: ...ETRoughing FUNCtion 446 SOURce hw IQ OUTPut ANALog ENVelope SHAPing DETRoughing COUPling 446 SOURce hw IQ OUTPut ANALog ENVelope SHAPing DETRoughing FACTor 446 SOURce hw IQ OUTPut ANALog ENVelope SHAP...

Страница 467: ...Voltage Reference on page 160 SOURce hw IQ OUTPut ANALog ENVelope DELay Delay Enables a time delay of the generated envelope signal relative to the corresponding RF signal Parameters Delay float Rang...

Страница 468: ...e BIAS Bias Sets a bias Parameters Bias float Range 4 to 4 Increment 1E 4 RST 0 Example See Example Generating an RF envelope signal and defining the shaping function on page 432 Manual operation See...

Страница 469: ...on page 432 Manual operation See EMF on page 162 SOURce hw IQ OUTPut ANALog ENVelope RIN InputResistance Sets the input impedance Rin of the used external DC modulator Parameters InputResistance float...

Страница 470: ...Range 50 to 50 Increment 0 01 RST 0 Example See Example Generating an RF envelope signal and defining the shaping function on page 432 Manual operation See Gain on page 163 SOURce hw IQ OUTPut ANALog...

Страница 471: ...t 1E 3 RST 0 Example See Example Generating an RF envelope signal and defining the shaping function on page 432 Usage Query only Manual operation See Diagram on page 175 SOURce hw IQ OUTPut ANALog ENV...

Страница 472: ...ge 432 Usage Query only Manual operation See Diagram on page 175 SOURce hw IQ OUTPut ANALog ENVelope PIN MIN PinMin Sets the minimum value of the input power Pin Parameters PinMin float Range 145 to 2...

Страница 473: ...Rce hw IQ OUTPut ANALog ENVelope SHAPing MODE ShapingMode Enables envelope shaping and selects the method to define the shaping function Parameters ShapingMode OFF LINear TABLe POLYnomial DETRoughing...

Страница 474: ...iq_lutpv are listed Example See Example Generating an RF envelope signal and defining the shaping function on page 432 Usage Query only Manual operation See Shaping Table on page 173 SOURce hw IQ OUTP...

Страница 475: ...igned automatically Setting parameters Filename string P Vcc value pairs Example See Example Generating an RF envelope signal and defining the shaping function on page 432 Usage Setting only SOURce hw...

Страница 476: ...ring Example See Example Generating an RF envelope signal and defining the shaping function on page 432 Usage Setting only Manual operation See Save Recall Polynomial on page 178 SOURce hw IQ OUTPut A...

Страница 477: ...ample Generating an RF envelope signal and defining the shaping function on page 432 Manual operation See Detroughing Function on page 172 SOURce hw IQ OUTPut ANALog ENVelope SHAPing DETRoughing COUPl...

Страница 478: ...DPD subsystem contains the commands for enabling and configuring of digital predistortion Example Defining correction coefficients and enabling digital predistortion RST SOURce1 IQ DPD PIN MIN 35 SOU...

Страница 479: ...ment STATe Response 1 SOURce1 IQ DPD OUTPut ERRor Response 0 SOURce1 IQ DPD OUTPut PEP Response 3 57 SOURce1 IQ DPD OUTPut LEVel Response 15 SOURce1 IQ DPD OUTPut CFACtor Response 11 43 enable static...

Страница 480: ...e hw IQ DPD OUTPut ITERations MAX 453 SOURce hw IQ DPD MEASurement STATe 453 SOURce hw IQ DPD INPut CFACtor 453 SOURce hw IQ DPD OUTPut CFACtor 453 SOURce hw IQ DPD INPut LEVel 453 SOURce hw IQ DPD OU...

Страница 481: ...le Defining correction coefficients and enabling digi tal predistortion on page 447 Manual operation See State on page 185 SOURce hw IQ DPD PRESet Sets the default DPD settings RST values specified fo...

Страница 482: ...SETTing STORe Filename Stores the current settings into the selected file the file extension dpd is assigned automatically Setting parameters Filename filename Filename or complete file path Usage Se...

Страница 483: ...ents and enabling digi tal predistortion on page 447 Manual operation See Level Reference on page 186 SOURce hw IQ DPD OUTPut ERRor Queries the resulting level error Return values AchievedError float...

Страница 484: ...ients and enabling digi tal predistortion on page 447 Usage Query only SOURce hw IQ DPD INPut CFACtor SOURce hw IQ DPD OUTPut CFACtor SOURce hw IQ DPD INPut LEVel SOURce hw IQ DPD OUTPut LEVel SOURce...

Страница 485: ...See Pre Gain on page 190 SOURce hw IQ DPD SHAPing MODE Shaping Selects the method to define the correction coefficients Parameters Shaping TABLe POLYnomial NORMalized RST TABLe Example See Example De...

Страница 486: ...e selected file name and loads it The file is stored in the default directory or in the directory specified with the absolute file path If the file does not yet exist a new file is created The file ex...

Страница 487: ...447 Manual operation See Invert correction values on page 189 SOURce hw IQ DPD SHAPing POLYnomial COEFficients Sets the polynomial coefficients Example see Example Defining correction coefficients an...

Страница 488: ...5 SOURce hw IQ DPD SHAPing NORMalized DATA Defines the normalized predistortion function in a raw data format binary data Parameters The binary data must start with the sign LengthOfNrOfBytes ASCII fo...

Страница 489: ...DATA CATalog Queries the available files with normalized data in the default directory Only files with the file extension dpd_norm are listed Example see SOURce hw IQ DPD SHAPing NORMalized DATA on pa...

Страница 490: ...DPD AMPM VALue PEP Queries the delta phase and delta power values for the current PEP of the generated RF signal Return values DeltaPhase float Range 180 to 180 Increment 0 01 RST 0 Example see Examp...

Страница 491: ...hase Parameters Phase float Range 360 to 360 Increment 0 1 RST 0 Default unit DEG Manual operation See Delta Phase on page 200 SOURce PHASe REFerence Adopts the phase set with command SOURce PHASe as...

Страница 492: ...ulation source SOURce PULM SOURce EXT Set the polarity of the externally applied modulation signal SOURce PULM POLarity NORMal Select the impedance for the external pulse modulation trigger input SOUR...

Страница 493: ...se after a trigger before the first pulse is generated SOURce hw PULM DOUBle DELay Delay Sets the delay from the start of the first pulse to the start of the second pulse Parameters Delay float Range...

Страница 494: ...the period of the generated pulse The period determines the repetition frequency of the internal signal Example PULM PER 220 us the pulse period is 220 us Manual operation See Pulse Period on page 23...

Страница 495: ...modulation Manual operation See State on page 230 SOURce hw PULM TRIGger EXTernal GATE POLarity Polarity Selects the polarity of the Gate signal Parameters Polarity NORMal INVerted RST NORMal Example...

Страница 496: ...signal is supplied via the trigger connector EGATe The pulse modulation is gated by an external gate signal The trigger signal is supplied via the trigger connector RST AUTO Example PULM TRIG MODE EXT...

Страница 497: ...for compatibility reasons only Parameters Sensitivity OFF LOW MED HIGH RST OFF Manual operation See Detector Sensitivity on page 211 SOURce POWer ALC SONCe Briefly activates level control for correcti...

Страница 498: ...r Offset on page 209 SOURce POWer LIMit AMPLitude Amplitude Sets the upper limit of the RF signal power The value is not affected by an instrument preset and RST function This parameter is influenced...

Страница 499: ...at output to 15 dBm Manual operation See Level Level Offset on page 60 SOURce POWer PEP Queries the RF signal peak envelope power Return values PEP float Usage Query only SOURce POWer SCHaracteristic...

Страница 500: ...ut level POWer OFFSet Entering a level offset does not change the RF output level but rather the query value of POWer Only dB is permitted as the unit here The linear units V W etc are not permitted P...

Страница 501: ...y ExtFreq Selects the frequency of the external reference Parameters ExtFreq 10MHZ 100MHZ 1000MHZ 13MHZ 13MHZ requires RF board with part number 1419 5308 02 To find out the RF board installed in the...

Страница 502: ...ues are used the instrument is no longer in the calibrated state However the calibration value is not changed and the instrument resumes the calibra ted state after sending the command SOURce ROSCilla...

Страница 503: ...e the status registers to be changed Setting values A decimal value in the range 0 to 32767 215 1 STATus OPERation CONDition 472 STATus OPERation ENABle 473 STATus OPERation EVENt 473 STATus OPERation...

Страница 504: ...ansition Sets the bits of the NTRansition part of the STATus OPERation register If a bit is set a transition from 1 to 0 in the condition part causes an entry to be made in the EVENt part of the regis...

Страница 505: ...being read out since it indicates the current hardware status Parameters Condition string Example STATus QUEStionable CONDition queries the Status Questionable Condition register STATus QUEStionable E...

Страница 506: ...y to be made in the EVENt part of the register Parameters PTransition string Example STAT OPER PTR 32767 all transitions from 0 to 1 in the condition part of the Sta tus Questionable register cause an...

Страница 507: ...2 SYSTem COMMunicate NETWork RESource 482 SYSTem COMMunicate SERial BAUD 482 SYSTem COMMunicate SERial PARity 482 SYSTem COMMunicate SERial RESource 483 SYSTem COMMunicate SERial SBITs 483 SYSTem COMM...

Страница 508: ...lues All string 0 No error i e the error queue is empty positive value Positive error numbers denote device specific errors negative value Negative error numbers denote error messages defined by SCPI...

Страница 509: ...and removes it from the queue The response consists of an error number and a short description of the error Positive error numbers are instrument dependent Negative error numbers are reserved by the...

Страница 510: ...I EOI The terminator must be sent together with the line message EOI End of Line This setting is recommended for binary block transmissions where a character could coincidentally have the value LF Lin...

Страница 511: ...string Range 0 0 0 0 to ff ff ff ff Example SYSTem COMMunicate NETWork IPADdress 7 8 9 10 sets the IP address of the instrument Manual operation See IP Address on page 258 SYSTem COMMunicate NETWork...

Страница 512: ...o avoid prob lems with the networdk connection However if you change the host name be sure to use an unique name The host name is a protected parameter To change it first disable protection level 1 wi...

Страница 513: ...n See Subnet Mask on page 258 SYSTem COMMunicate NETWork RESource Queries the VISA resource string used for remote control of the instrument with VXI 11 protocol Return values Resource string Example...

Страница 514: ...only SYSTem COMMunicate SERial SBITs SBits Sets the number of stop bits for the serial remote control interface Parameters SBits 1 2 RST 1 Example SYST COMM SER SBIT 2 selects 2 stop bits SYSTem COMMu...

Страница 515: ...urce string for remote control via the USB interface Return values Resource string Example SYSTem COMMunicate USB RESource queries the VISA resource string for remote control via the USB interface Res...

Страница 516: ...ment s specific command set is disabled i e the SCPI command SYSTem LANGuage will be discarded The return to the SCPI command set of the R S SGT can only be performed by using the appropriate command...

Страница 517: ...on level 1 Internal adjustments are enabled again SYSTem DATE Year Month Day Queries or sets the date for the instrument internal calendar This parameter is protected in order to prevent accidental ch...

Страница 518: ...ME ZONE CATalog Parameters TimeZone string Manual operation See Time Zone on page 262 SYSTem TIME ZONE CATalog Querys the list of available time zones Return values Catalog Usage Query only Manual ope...

Страница 519: ...ed successfully otherwise a value other than 0 is returned None of the commands of this system have an RST value Improper use can destroy the assembly The respective hardware assembly responds directl...

Страница 520: ...nction of the module Return values Bbin 0 1 OFF ON Example TEST BBIN Response 0 on success 1 on fail Usage Query only TEST BB CONNection Queries the state of the connection between connectors USER1 an...

Страница 521: ...This setting affects the GUI as well as all remote control commands that determine power values Parameters Power V DBUV DBM RST DBM Example UNIT POW V sets V as a default unit for all commands which d...

Страница 522: ...OAD STATe 325 MMEMory MDIRectory 325 MMEMory MOVE 325 MMEMory MSIS 325 MMEMory RDIRectory 326 MMEMory STORe STATe 326 OUTPut AFIXed RANGe LOWer 327 OUTPut AFIXed RANGe UPPer 327 OUTPut AMODe 327 OUTPu...

Страница 523: ...UEue NEXT 475 SYSTem COMMunicate GPIB LTERminator 479 SYSTem COMMunicate GPIB RESource 479 SYSTem COMMunicate GPIB SELF ADDRess 480 SYSTem COMMunicate HISLip RESource 483 SYSTem COMMunicate NETWork IP...

Страница 524: ...OFFset 350 SOURce BB IMPairment IQOutput ch DELay 411 SOURce BB IMPairment IQOutput ch IQRatio MAGNitude 412 SOURce BB IMPairment IQOutput ch LEAKage I 412 SOURce BB IMPairment IQOutput ch LEAKage Q 4...

Страница 525: ...al FREQuency 470 SOURce ROSCillator EXTernal SBANdwidth 470 SOURce ROSCillator OUTPut FREQuency 470 SOURce ROSCillator SOURce 470 SOURce ROSCillator INTernal ADJust VALue 471 SOURce ROSCillator INTern...

Страница 526: ...y MCARrier EDIT CARRier EXECute 377 SOURce hw BB ARBitrary MCARrier EDIT CARRier FILE 378 SOURce hw BB ARBitrary MCARrier EDIT CARRier PHASe STEP 378 SOURce hw BB ARBitrary MCARrier EDIT CARRier PHASe...

Страница 527: ...ary TSIGnal RECTangle CREate NAMed 366 SOURce hw BB ARBitrary TSIGnal RECTangle FREQuency 367 SOURce hw BB ARBitrary TSIGnal RECTangle OFFSet 367 SOURce hw BB ARBitrary TSIGnal RECTangle SAMPles 367 S...

Страница 528: ...e hw BB CFACtor 413 SOURce hw BB IMPairment DELay 408 SOURce hw BB IMPairment IQRatio MAGNitude 408 SOURce hw BB IMPairment LEAKage I 408 SOURce hw BB IMPairment LEAKage Q 409 SOURce hw BB IMPairment...

Страница 529: ...1 SOURce hw CORRection VALue 422 SOURce hw CORRection ZERoing STATe 422 SOURce hw CORRection STATe 422 SOURce hw IQ DPD AMAM STATe 451 SOURce hw IQ DPD AMAM VALue LEVel 459 SOURce hw IQ DPD AMAM VALue...

Страница 530: ...IQ OUTPut LEVel 430 SOURce hw IQ OUTPut ANALog BIAS COUPling STATe 427 SOURce hw IQ OUTPut ANALog BIAS COUPling STATe 430 SOURce hw IQ OUTPut ANALog BIAS I 428 SOURce hw IQ OUTPut ANALog BIAS I 430 SO...

Страница 531: ...ope TERMination 438 SOURce hw IQ OUTPut ANALog ENVelope VCC MAX 439 SOURce hw IQ OUTPut ANALog ENVelope VCC MIN 439 SOURce hw IQ OUTPut ANALog ENVelope VCC OFFSet 439 SOURce hw IQ OUTPut ANALog ENVelo...

Страница 532: ...y 464 SOURce hw PULM TRIGger EXTernal IMPedance 464 SOURce hw PULM TRIGger EXTernal SLOPe 465 SOURce hw PULM TRIGger MODE 465 SOURce hw PULM WIDTh 465 CLS 305 ESE 305 ESR 305 IDN 306 IST 306 OPC 306 O...

Страница 533: ...andatory or may be included optional Unknown tags are not analyzed by the R S SGT On the other hand they are left unchanged are saved without an error message and can be read back again R S AMIQ wavef...

Страница 534: ...agic Designates the file type and has the following values SMU WV A valid R S SGT waveform SMU MWV A valid R S SGT multi segment waveform xxxxxxxx Is an ASCII coded checksum of the data part of the WA...

Страница 535: ...ng is not analyzed in the R S SGT It is used to describe the file The string is allowed to contain all print able ASCII characters except the closing curly bracket Example COMMENT File with data for 3...

Страница 536: ...y generated one and multi segment waveforms This tag is empty i e contains no data and is used as placeholder Setting parameters Length An ASCII integer value that specifies the number of bytes in the...

Страница 537: ...M starts at 0x4000 The EMPTYTAG con tains 15946 blanks and has a length of 15946 1 bytes Usage Setting only LEVEL OFFS RMSOffset_dB PeakOffset_dB recommended for waveforms The tag determines the level...

Страница 538: ...TAG LEVEL OFFS Queries the content of the LEVEL OFFS tag of the selected waveform file Response 3 45 2 The level of the waveform is below full scale clipping does not occur Usage Setting only SAMPLES...

Страница 539: ...rmat Example MARKER LIST 1 0 0 10 1 20 0 30 1 BB DM CLIS TAG MARKER LIST 1 Queries the content of the MARKER LIST 1 tag of the selected control list file Response 0 0 10 1 20 0 30 1 The marker setting...

Страница 540: ...NT_COUNT MWV_SEGMENT_START and MWV_SEGMENT_LENGTH Further MWV_SEGMENT_ tags are also available for example for level and clock information Example One segment waveform WAVEFORM 401 I0 Q0 I1 Q1 I2 Q2 I...

Страница 541: ...er format Example MWV_SEGMENT_START 0 100 2 segments with 100 samples in segment 0 and 200 samples in segment 1 The start offset of first segment is 0 samples start offset of next segment 1 is the sam...

Страница 542: ...segment output waveform USER All segments have an identical clock rate which is given by the user Note Only upsampling is allowed no downsampling If an individual original waveform has a lower clock r...

Страница 543: ...ional for multi segment waveforms The tag contains a list of file names for every segment in the multi segment waveform in ASCII format Example MWV_SEGMENT_FILES var user sine wv var user rect wv Usag...

Страница 544: ...n 4 bit binary format Example CONTROL LIST WIDTH4 51 m0m1 mx m99 100 marker elements each marker element with 4 bits Usage Setting only 12 2 How to Manually Create a Waveform Using Tag File Format The...

Страница 545: ...The result is stored in the file SICO txt Figure 12 3 Contents of SICO txt first column Sine I second column Cosine Q 2 Convert the values from the file SICO txt into binary format consisting of 16 b...

Страница 546: ...79 To simplify the example the checksum is set to 0 i e the instrument does not eval uate a checksum Tip The tags TYPE CLOCK LEVEL OFFS and WAVEFORM are mandatory for each waveform All other tags are...

Страница 547: ...ine and cosine pairs converting them into binary data and creating the waveform file SICO wv SICO cpp Defines the entry point for the console application include stdafx h include stdlib h include stdi...

Страница 548: ...tf fp_dest LEVEL OFFS f f 1 0f 20 0f log10 1 0f sqrt 2 0f 0 0f fprintf fp_dest WAVEFORM d samples 4 1 for i 0 i samples i Read I Q pair from ASCII file if fscanf fp_sour f f i_float q_float EOF break...

Страница 549: ...data Editing of binary data file with a text editor even if you only change the ASCII part of the file corrupts the file Adapt the length information in the EMPTYTAG If you change the content of a wav...

Страница 550: ...Rohde Schwarz service centers can be found at the beginning of this manual 13 1 Cleaning The outside of the instrument can be cleaned sufficiently using a soft lint free dust cloth Make sure that the...

Страница 551: ...ange of the instrument is given in the data sheet If the instrument is to be stored for a longer period of time it must be protected against dust Repack the instrument as it was originally packed when...

Страница 552: ...the instrument The states are indicated for information only and do not neces sitate any action by the user Status Information displayed in the Info line AttFixed Attenuator fixed mode is active The u...

Страница 553: ...nation the message automatically disappears and is also recorded in the history SCPI command SYSTem SERRor 14 3 SCPI Error Messages The SCPI error messages are the same in all SCPI instruments Detaile...

Страница 554: ...data 204 Driver initialization failed Initialization of a driver fails when booting the instrument firmware The driver is not compatible with the hardware or software config uration of the instrument...

Страница 555: ...at is not valid for the file type Check the file extension The file extension determines the data that is valid for this file type If the file extension is changed the lists are no longer recognized a...

Страница 556: ...nt types of instrument messages depending on the direction they are sent Commands Instrument responses Commands Commands program messages are messages the controller sends to the instrument They opera...

Страница 557: ...returns to remote state when a remote command is sent UNLESS NREN was sent before GTR Go to Remote Enables automatic transition from local state to remote state by a subsequent remote command after N...

Страница 558: ...es only assume the existence of the following commands for this section DISPlay WINDow 1 4 MAXimize Boolean FORMat READings DATA type length HCOPy DEVice COLor Boolean HCOPy DEVice CMAP COLor RGB red...

Страница 559: ...2 This command refers to the quadrant 2 Different numbering in remote control For remote control the suffix may differ from the number of the corresponding selec tion used in manual operation SCPI pre...

Страница 560: ...a window other than 1 you must include the optional WINDow parameter with the suffix for the required window DISP WIND2 MAX ON refers to window 2 Parameters Parameters must be separated from the head...

Страница 561: ...idth BWIDth RESolution numeric_value The two following commands with identical meaning can be created SENS BAND RES 1 SENS BWID RES 1 Mnemonics in square brackets are optional and may be inserted into...

Страница 562: ...it 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 basic unit is used Example SENSe FREQ STOP 1 5GHz SENSe FREQ STOP 1 5E9 Som...

Страница 563: ...ntered follow ing the quotation mark Example SENSe LIST FREQ MAXimum Returns the maximum numeric value as a result Boolean Parameters Boolean parameters represent two states The ON state logically tru...

Страница 564: ...ngth of the transmission is not known or if speed or other considerations prevent segmentation of the data into blocks of definite length 15 1 3 4 Overview of Syntax Elements The following table provi...

Страница 565: ...command line contains two commands Both commands are part of the HCOP command system i e they have one level in common When abbreviating the command line the second command begins with the level belo...

Страница 566: ...ifferent command lines An overlapping command is one which does not automatically finish executing before the next command starts executing Usually overlapping commands take longer to process and allo...

Страница 567: ...little time to process The two synchronization commands simply block overlapped execution of the command Append the synchronization command to the overlapping command for example SINGle OPC For time c...

Страница 568: ...status reporting system stores all information on the current operating state of the instrument and on errors which have occurred This information is stored in the status registers and in the error q...

Страница 569: ...tatus Summary Bit MAV Message Available in Output Queue QUES Questionable Status Summary Bit 2 Error Event Queue 1 0 not used Note This legend explains the abbreviations to the Status Byte Register Th...

Страница 570: ...is represented in the overview Error Event Queue The error event queue contains all errors and events that have occurred in the past When reading the queue the instrument starts with the first occurr...

Страница 571: ...lter When a bit of the CONDition part is changed from 0 to 1 the associated PTR bit decides whether the EVENt bit is set to 1 PTR bit 1 the EVENt bit is set PTR bit 0 the EVENt bit is not set This par...

Страница 572: ...s by collecting the pieces of information of the lower regis ters A special feature is that bit 6 acts as the sum bit of the remaining bits of the status byte The STB is read using the command STB or...

Страница 573: ...defined in IEEE 488 2 It can be compared with the EVENt part of a SCPI register The event status register can be read out using command ESR The ESE corresponds to the ENABle part of a SCPI register If...

Страница 574: ...UEST EVEN Table 15 4 Meaning of the bits used in the questionable status register Bit No Meaning 0 15 Not used 15 1 5 6 Operation Status Register STATus OPERation This condition part contains informat...

Страница 575: ...Operation Complete SRE 32 set bit 5 of SRE ESB After its settings have been completed the instrument generates an SRQ The SRQ is the only possibility for the instrument to become active on its own Ea...

Страница 576: ...sely than the status registers Espe cially in the test phase of a controller program the error queue should be queried regu larly since faulty commands from the controller to the instrument are record...

Страница 577: ...ive on its own Each controller program should instruct the instrument to initiate a service request in case of malfunction The program should react appropriately to the service request Error queues Th...

Страница 578: ...t receiveBufferSize TcpClient cpp include string defines structs for socket handling include netinet in h using namespace std typedef struct sockaddr_in SockAddrStruct typedef struct hostent HostInfoS...

Страница 579: ...HostName currentPort 0 currentHostInfo NULL clientIsConnected false printf error connecting host n currentHostName hostname currentPort port currentSocketDescr socket AF_INET SOCK_STREAM 0 if currentS...

Страница 580: ...fer txString length n newline is needed if send currentSocketDescr transmitBuffer txString length 1 0 0 throw string can t transmit data n delete transmitBuffer void TcpClient receive string rxString...

Страница 581: ...r ip scpi command endl int main int argc char argv int errorCode 0 no error bool useSingleCommand false string singleCommand string hostname int port 5025 string input TcpClient client switch argc cas...

Страница 582: ...true if terminate client transmit input send string int qPos input find 0 receive string only when needed if qPos 0 string rcStr client receive rcStr cout rcStr endl if useSingleCommand terminate tru...

Страница 583: ...9 Predistortion 178 State 187 Which DPD applies first 186 AM PM predistortion Normalized data 197 Shaping table 192 Analog impairments 139 Analog Wideband 136 Aperture time Power sensors 228 Append 88...

Страница 584: ...ce Baseband Input 401 Connector DIGITAL I Q 33 I 34 LAN 33 LO IN 34 LO OUT 34 NRP sensor mapping 220 PCIe 32 Q 34 REF IN 34 REF OUT 34 RF OUT 33 USB 32 USER 1 2 33 Connector mode USER 1 2 232 234 Conn...

Страница 585: ...static discharge 18 EMF DC modulator 162 EMI suppression 19 Emulation language 260 Enable AM AM AM PM 187 ENABle 540 Enable registers Remote 307 Enter license key 249 Envelope detector 147 Envelope sh...

Страница 586: ...l 255 Firmware version 247 Fix marker delay to current range 121 365 Fixed mode 144 I Q Out 144 Floating licenses 247 Frequency At the RF output 199 Incl RF offset 60 Offset 199 Power sensors 227 With...

Страница 587: ...ttings Recall 307 325 Save 307 326 Interface messages 525 526 Interfaces GPIB 284 USB 283 Internal Baseband I Q In 136 Interpolation Shaping table DPD 189 Shaping table envelope tracking 174 Interrupt...

Страница 588: ...onform ET signal 163 Mnemonics 526 Optional 528 Mode 96 370 I Q Out 144 PULM 231 Pulse modulation 231 RF level 207 User correction data 215 Mode IP address 257 Modulation I Q 135 Monitoring Collisions...

Страница 589: ...42 Phase Offset Q Test Signal 368 Phase offset Q test signal ARB 106 Phase start 102 Phase Start 372 Phase step 103 Phase Step 378 Ping LXI 297 Play list 84 91 119 Play list file Sequencing list file...

Страница 590: ...543 Quotation mark 533 R Rack mounting 21 Ratio noise system bandwidth Minimum 126 Raw data format DPD 183 Envelope shaping file 152 Read Power sensors 225 Readjust 208 Ready state 22 Recall instrumen...

Страница 591: ...BIN A B Selftest 489 Sensor Power sensors 226 Sensor name NRP sensor mapping 220 Sequencing Graphic 93 Sequencing List 91 119 Sequential commands 535 Serial number Power sensors 225 Service manual 16...

Страница 592: ...xes 528 Supply voltage Range 164 Supply voltage offset DC modulator 164 Supply voltage PA Detroughing 172 173 Sync output to external trigger 112 Synchronization bandwidth 203 Synchronization state 12...

Страница 593: ...e 253 V Value User correction 213 Value range Envelope voltage 160 Pin power amplifier 165 190 Vcc power amplifier 164 Vcc offset DC modulator 164 Vin Vmax Vcc Vmax Settings 176 VISA 276 HiSLIP string...

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