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R&S FSW-K17 MC Group Delay User Manual

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1. ccccceceeceeeeeeeeseeeeeeeseeees User Manual 1173 9405 02 07 160
2. 07 9 R amp S FSW K17 Welcome to the Multi Carrier Group Delay Application 2 2 Understanding the Display Information The R amp S FSW opens a new measurement channel for the Multi Carrier Group Delay application The measurement is started immediately with the default settings It can be configured in the Multi Carrier Group Delay Overview dialog box which is displayed when you select the Overview softkey from any menu see chapter 6 2 Configuration Over view on page 25 Multiple Measurement Channels and Sequencer Function When you activate an application a new measurement channel is created which deter mines the measurement settings for that application The same application can be acti vated with different measurement settings by creating several channels for the same application The number of channels that can be configured at the same time depends on the available memory on the instrument Only one measurement can be performed at any time namely the one in the currently active channel However in order to perform the configured measurements consecu tively a Sequencer function is provided If activated the measurements configured in the currently active channels are performed one after the other in the order of the tabs The currently active measurement is indicated by a amp symbol in the tab label The result displays of the individual channels are updated in the tabs including the MultiView as the
3. Linking to Another Marker Links the current marker to the marker selected from the list of active markers If the x axis value of the inital marker is changed the linked marker follows on the same x posi tion Linking is off by default Using this function you can set two markers on different traces to measure the difference e g between a max hold trace and a min hold trace or between a measurement and a reference trace Remote command CALCulate lt n gt MARKer lt m1 gt LINK TO MARKer lt m2 gt on page 133 CALCulate lt n gt DELTamarker lt m1 gt LINK TO MARKer lt m2 gt on page 131 CALCulate lt n gt DELTamarker lt m gt LINK on page 131 Assigning the Marker to a Trace The Trace setting assigns the selected marker to an active trace The trace determines which value the marker shows at the marker position If the marker was previously assigned to a different trace the marker remains on the previous frequency or time but indicates the value of the new trace If a trace is turned off the assigned markers and marker functions are also deactivated Remote command CALCulate lt n gt MARKer lt m gt TRACe on page 134 All Markers Off Deactivates all markers in one step Remote command CALCulate lt n gt MARKer lt m gt AOFF on page 133 7 3 1 2 General Marker Settings Some general marker settings allow you to influence the marker behavior for all markers These settings are located in the Marker Settings
4. Note the special conditions and restrictions for the YIG filter described in Y G Preselec tor on page 28 Parameters lt State gt ON OFF 0 1 RST 1 0 for UO Analyzer GSM VSA and MC Group Delay measurements Example INP FILT YIG OFF Deactivates the YIG preselector Manual operation See Y G Preselector on page 28 INPut IMPedance lt Impedance gt This command selects the nominal input impedance of the RF input 75 Q should be selected if the 50 Q input impedance is transformed to a higher impedance using a matching pad of the RAZ type 25 Q in series to the input impedance of the instrument The power loss correction value in this case is 1 76 dB 10 log 750 500 Parameters lt Impedance gt 50 75 RST 500 Example INP IMP 75 Usage SCPI confirmed Manual operation See Impedance on page 28 INPut SELect lt Source gt This command selects the signal source for measurements i e it defines which connec tor is used to input data to the R amp S FSW If no additional options are installed only RF input is supported Parameters lt Source gt RF Radio Frequency RF INPUT connector RST RF Configuring the Vertical Axis Amplitude Scaling The following commands are required to configure the amplitude and vertical axis settings in a remote environment Amplitude lee ioi A Aa a Aa 87 o EIDEN EEEE ETER 87 Configuring EISE sissors Red Aane ERREEN 89 e Scaling the Y Axis Une
5. This command determines which tab is displayed Parameters lt Format gt SPLit Displays the MultiView tab with an overview of all active channels SINGle Displays the measurement channel that was previously focused RST SPL Example DISP FORM SING DISPlay WINDow lt n gt SIZE lt Size gt This command maximizes the size of the selected result display window temporarily To change the size of several windows on the screen permanently use the LAY SPL com mand see LAYout SPLitter on page 113 Parameters lt Size gt LARGe Maximizes the selected window to full screen Other windows are still active in the background SMALI Reduces the size of the selected window to its original size If more than one measurement window was displayed originally these are visible again RST SMALI Example DISP WIND2 LARG 11 6 2 Working with Windows in the Display The following commands are required to change the evaluation type and rearrange the screen layout for a measurement channel as you do using the SmartGrid in manual operation Since the available evaluation types depend on the selected application some parameters for the following commands also depend on the selected measurement channel Note that the suffix lt n gt always refers to the window in the currently selected measure ment channel see INSTrument SELect on page 83 Kee NEE ee a a aa a a aaa Ea AA a 111 LAYout CATalog MINDOW KEE 112 dee aver 112
6. 2 2 2 cceretececcecancnesseceneeeeezesenaneaeenetees 95 SENSe F FREQUEN ey OFF SOt ee headed ENER 95 SENSe FREQuency CENTer lt Frequency gt This command defines the center frequency E S User Manual 1173 9405 02 07 93 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Deeg Configuring Multi Carrier Group Delay Measurements Parameters lt Frequency gt The allowed range and fmax is specified in the data sheet UP Increases the center frequency by the step defined using the SENSe FREQuency CENTer STEP command DOWN Decreases the center frequency by the step defined using the SENSe FREQuency CENTer STEP command RST fmax 2 Default unit Hz Example FREQ CENT 100 MHz FREQ CENT STEP 10 MHz FREQ CENT UP Sets the center frequency to 110 MHz Usage SCPI confirmed Manual operation See Center on page 37 SENSe FREQuency CENTer STEP lt StepSize gt This command defines the center frequency step size You can increase or decrease the center frequency quickly in fixed steps using the SENS FREQ UP AND SENS FREQ DOWN commands see SENSe FREQuency CENTer on page 93 Parameters lt StepSize gt fmax iS specified in the data sheet Range 1 to fMAX RST 0 1 x span Default unit Hz Example FREQ CENT 100 MHz FREQ CENT STEP 10 MHz FREQ CENT UP Sets the c
7. Avg Min Trace 2 Average Trace 3 Min Hold Trace 4 Blank Set Trace Mode Trace 1 Max Hold Max CIrWrite Min Trace 2 Clear Write Trace 3 Min Hold Trace 4 Blank User Manual 1173 9405 02 07 56 R amp S FSW K17 Analysis Trace Export Settings Trace 1 Trace 2 Trace 3 Trace 4 Softkeys Displays the Traces settings and focuses the Mode list for the selected trace Remote command DISPlay WINDow lt n gt TRACe lt t gt STATe on page 129 7 2 Trace Export Settings Trace settings can be configured in the Traces dialog box or in the vertical Traces tab of the Analysis dialog box Switch to the Trace Data Export tab Traces Trace Data Export Copy Trace Export all Traces and all Table Results Indude Instrument Measurement Settings Decimal Separator Export Trace to ASCII File Export all Traces and all Table Results 57 Include Instrument Measurement Gettngs AA 57 MACS O EG KOON TEE 58 Re Ee e EE 58 Export Trace to ASCII E 58 Export all Traces and all Table Results Selects all displayed traces and result tables e g Result Summary marker peak list etc in the current application for export to an ASCII file Alternatively you can select one specific trace only for export see Trace to Export Remote command FORMat DEXPort TRACes on page 127 Include Instrument Measurement Settings Includes additional instrument and measurement settings in the header of the export file
8. When you switch the application of ameasurement channel to Multi Carrier Group Delay application the first time a set of parameters is passed on from the currently active appli cation see chapter 6 1 Default Settings for Multi Carrier Group Delay measurements on page 24 After initial setup the parameters for the measurement channel are stored upon exiting and restored upon re entering the channel Thus you can switch between applications quickly and easily When you activate a measurement channel in Multi Carrier Group Delay application a Multi Carrier Group Delay measurement for the input signal is started automatically with the default configuration The MCGD Meas menu is displayed and provides access to the most important configuration functions e Default Settings for Multi Carrier Group Delay measurements 24 Configuration OVEPViCW 2 ccccecceessceteceeeseetecnceesncbaedeeedenaedecescaanaaeceecanaebeceeedee 25 Input Soues EE 27 Amplitude and Y Axis SGaAlNg EE 29 Frequency E dr EE 36 EE Nur E Elie TTT 38 Muli Camier Configuration DEE 43 SWOOP SOUMIOS ioeina EAN A sdb dagaduds edd ageless 48 Dutput E dl EE 49 AWIOMAUC DOMINGOS oriori aa a AEAEE aAA EA A AAN 51 6 1 Default Settings for Multi Carrier Group Delay meas urements When you switch the application of a measurement channel to Multi Carrier Group Delay application the first time a set of parameters is passed on from the curren
9. 11 9 5 Zooming into the Display 11 9 5 1 Using the Single Zoom DISPlay WINDow lt n gt ZOOM AREA 00 2 ceceeeeeeeeceeeeeeeeeeeeeeeeee eases aaaaaaateeeeeesesaeeaaaaaneees 139 DISPlay WINDow lt n gt ZOOM STAT cniri niani EE E Eiai TRETE 140 DISPlay WINDow lt n gt ZOOM AREA lt x1 gt lt y1 gt lt x2 gt lt y2 gt This command defines the zoom area I User Manual 1173 9405 02 07 139 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Analyzing Multi Carrier Group Delay Measurements To define a zoom area you first have to turn the zoom on 1 Frequency Sweep iRm e 1 origin of coordinate system x1 0 y1 0 2 end point of system x2 100 y2 100 3 zoom area e g x1 60 y1 30 x2 80 y2 75 Parameters lt x1 gt lt y1 gt Diagram coordinates in of the complete diagram that define the lt x2 gt lt y2 gt Zoom area The lower left corner is the origin of coordinate system The upper right corner is the end point of the system Range 0 to 100 Default unit PCT Manual operation See Single Zoom on page 66 DISPlay WINDow lt n gt ZOOM STATe lt State gt This command turns the zoom on and off Parameters lt State gt ON OFF RST OFF Example DISP ZOOM ON Activates the zoom mode Manual operation See Single Zoom on page 66 See Restore Original Display on page 67 See Deactivating Zoom Selection mode on p
10. CALCulate lt n gt DELTamarker lt m gt MAXimum PEAK E CAL Culate nz DEI Tamarker mz MiNmmum LEET CAL Culate nz DEI Tamarker mz MiNmumNENT nae CAL Culate nz DEI Tamarker mz MiNmmum HIGH CAlCulate nz D I Tamarker mz MiNmuomt PDEART CALCulate cnz DEI Tamarker mz MREF A CALCulate lt n gt DELTamarker lt m gt TRACe a CALCulate lt n gt DELTamarker lt m gt Xe siceceessagnepese ia havec evi fa legs cpdueesaadicgabnessdhccessshancdhccneatvdstdendaatial caai 132 CAL Culate nz DEL Tamarker zmz SREL ative teeke iekriettttteitnntkntttiinnttnnnnrinnsnnattnnnnnnnnnn nnne 122 CAL Culate nz DEI Tamarkercmzs ve 123 CAlCulate cnz D I TamarkermzfGTATel 132 CAL Culatesn gt FEED EE CALCulate lt n gt MARKer PEXCursion D CAL Culate cnz MAb ker m1z LINK TOMARkR erem 133 CALCulate lt n gt MARKer lt m gt AQF Fi ccccssccccasancescssenecvsecdecnsescceeeusccaeeesceccasacenansenedvbeeeesronsedivessonteanecenvessacanense CALCulate lt n gt MARKer lt m gt LINK c ccceesceeeeeneeeeeeeeeeeeeeeeeaaeeceaeeeeeeaeessaaeeeeeaaeeeseeaeeseeaeeeteaeeseeaseeesseaeeeeeas CALCulate lt n gt MARKer lt m gt MAXiMmUM LEET CALCulate lt n gt MARKer lt m gt MAXimum NEXT CALCulate lt n gt MARKer lt m gt MAXimum RIGHt CAL Culate cnzMAbRker mz MAimumfPDEAKT nenene 136 CAL Culate cnz MAbRker mzMiNimum LEET 137 CAL Culate cnz MAbRker mzMiNimumNENT rnnt 137 CAL Culate nz MAbker mzMiNimum HIGH 137 CAL Culate cnz MAbRker mz MiNimum
11. END message to terminate the data block This format is useful when the length of the transmission is not known or if speed or other considerations prevent segmentation of the data into blocks of definite length 11 2 Common Suffixes In the Multi Carrier Group Delay application the following common suffixes are used in remote commands Suffix Value range Description lt m gt 1 16 Marker lt n gt 1 6 Window lt t gt 1 4 Trace 11 3 Activating Multi Carrier Group Delay Measurements Multi Carrier Group Delay measurements requires a special application on the R amp S FSW A measurement is started immediately with the default settings INSTMmeneCREate DUPLICATS sinri a an a aaa A EENS 81 INSTt ument CREE NEW icno REESEN NEE EEEE E EEEE EREA 81 ll Ee EE EN Leg e 82 INS TOMER EN EE 82 INSTA ER IDS Klee cocaina naien iaaeaie Ea a Kea E See 83 SYS Tem PRESet CHANNEL EXECU EE 84 User Manual 1173 9405 02 07 80 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Deeg Activating Multi Carrier Group Delay Measurements INSTrument CREate DUPLicate This command duplicates the currently selected measurement channel i e starts a new measurement channel of the same type and with the identical measurement settings The name of the new channel is the same as the copied channel extended by a con secutive number e g Spectrum gt Spectrum 2 The channel to be
12. Linear Percent e Ca Linear with Unit Ref Level Position 100 0 wm ibsolt pun Relative TEA 1 Magnitude Fig 6 1 Scaling settings for Magnitude display Amplitude Scaling Unit Scaling according to min and max values Max 360 0 Min 360 0 Scaling according to reference and per div Per Division Ref position 50 0 Ref Value Fig 6 2 Scaling settings for Phase and Group Delay display PAESE AEA PENARE e 34 DR e E A A EE 34 L Ref Level PoSition c ceccccsccsssessecescessecescseceesaceecseceesacsacseseesaecarecsevarcatensacsareates 34 EE 34 BEE 34 L Y Axis Reference Vale 34 User Manual 1173 9405 02 07 33 R amp S FSW K17 Configuration REESEN Amplitude and Y Axis Scaling L Y Axis Reference Position 35 Beate per eebe 35 Defining Min and Max Vales eerca EELER ENEE EE ENEE 35 EE added EES EES EES EES 35 Defining a Range and the Reference Level Position For Magnitude displays you can define the position of the reference level for linear scaling or define the range in dB and the position of the reference level Range lt Defining a Range and the Reference Level Position Defines the displayed y axis range in dB frequency domain or Hz time domain The default value is 100 dB or 500 kHz Remote command DISPlay WINDow lt n gt TRACe Y SCALe on page 90 Ref Level Position Defining a Range and the Reference Level Position Defines the refe
13. Sends a trigger signal when the R amp S FSW has triggered internally TARMed Sends a trigger signal when the trigger is armed and ready for an external trigger event UDEFined Sends a user defined trigger signal For more information see OUTPut TRIGger lt port gt LEVel RST DEVice Manual operation See Trigger 2 3 on page 42 See Output Type on page 42 OUTPut TRIGger lt port gt PULSe IMMediate This command generates a pulse at the trigger output Suffix lt port gt 2 3 Selects the trigger port to which the output is sent 2 trigger port 2 front 3 trigger port 3 rear Usage Event Manual operation See Trigger 2 3 on page 42 See Output Type on page 42 See Send Trigger on page 43 OUTPut TRIGger lt port gt PULSe LENGth lt Length gt This command defines the length of the pulse generated at the trigger output Suffix lt port gt 2 3 Selects the trigger port to which the output is sent 2 trigger port 2 front 3 trigger port 3 rear Parameters lt Length gt Pulse length in seconds Manual operation See Trigger 2 3 on page 42 See Output Type on page 42 See Pulse Length on page 42 Multi Carrier Configuration The following commands are required to configure the multi carrier measurement E M User Manual 1173 9405 02 07 102 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Deeg Configuring Multi Carrier Group Delay Measur
14. User Manual 1173 9405 02 07 110 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements b a Configuring the Result Display LAveutb kEMeuetWihNt euat NEE ENEEREEERRRERENEAEEEREREEEEENKEREEEENEEEEREERSEAEREERSEEEEKEKEN ENNEN 113 LAY OUEREPLace Me ET 113 BAA Eeer ee 113 LAY Gui WINDOW AS ADD iniiao iaaa a aaa E a aa iaa aa aa i ia 115 LAYO WINDOWS A gt IDENT cinnin e a A ett aaa aA a 115 KEN Eelere edel 115 LAY ut WINDOW A EE 116 LAYout ADD WINDow lt WindowName gt lt Direction gt lt WindowType gt This command adds a window to the display This command is always used as a query so that you immediately obtain the name of the new window as a result To replace an existing window use the LAYout REPLace WINDow command Parameters lt WindowName gt String containing the name of the existing window the new window is inserted next to By default the name of a window is the same as its index To determine the name and index of all active windows use the LAYout CATalog WINDow query lt Direction gt LEFT RIGHt ABOVe BELow Direction the new window is added relative to the existing window lt WindowType gt text value Type of result display evaluation method you want to add See the table below for available parameter values Return values lt NewWindowName gt When adding a new window the command returns its name by default the same as its number as a resul
15. field Remote command SENSe FREQuency CENTer STEP on page 94 Frequency Offset Shifts the displayed frequency range along the x axis by the defined offset This parameter has no effect on the R amp S FSW hardware or on the captured data or on data processing It is simply a manipulation of the final results in which absolute frequency values are displayed Thus the x axis of a spectrum display is shifted by a constant offset if it shows absolute frequencies but not if it shows frequencies relative to the signal s center frequency A frequency offset can be used to correct the display of a signal that is slightly distorted by the measurement setup for example The allowed values range from 100 GHz to 100 GHz The default setting is 0 Hz Remote command SENSe FREQuency OFFSet on page 95 User Manual 1173 9405 02 07 37 R amp S FSW K17 Configuration Trigger Settings 6 6 Trigger Settings Trigger settings determine when the input signal is measured Trigger settings can be configured via the TRIG key or in the Trigger dialog box which is displayed when you select the Trigger button in the Overview Trigger Source Trigger In Out Source Free Run Drop Out Time Offset Slope Rising Falling Hysteresis Holdoff External triggers from one of the TRIGGER INPUT OUTPUT connectors on the R amp S FSW are configured in a separate tab of the dialog box Trigger Source Trigger
16. sissien eana anaiai Aaaa E aaa E aaa ENEE EES 69 How to Perform Measurements in the Multi Carrier Group Delay E d inia aiaia sa idiniin daadaa didaa iidi Eii 70 Optimizing and Troubleshooting the Measurement ee 73 Error and Status Messages arasinan aaa AAAA RRRA 74 Remote Commands to Perform Multi Carrier Group Delay Measure MENTS EN 75 Intro CU COON ssia A A 75 Common SUNOS arja inna aa AARAA SANEERATAAN 80 Activating Multi Carrier Group Delay Measurementts ecceeceeeeeeeeeeeeeeees 80 Configuring Multi Carrier Group Delay Measurements ccccceeeeeeeeeeeeeeeeeeees 84 Measuring Loading and Storing Calibration Data eecceeeeeeeeeeeeeeeeeeeeees 108 Configuring the Result Display ccccccssscceeceseeenceeeeeeeeeeeeeeeeeeneeeensneeeeeeeneeseeeeenenes 109 Configuring and Performing SWeEPS cc ceccceceeeeeenceeeeeeeeeeeeeeeeeneeeeeeeeeeeeeeeeeennnes 116 Retrieving ROSUItS ssassn ANAS AAAA RARS 122 Analyzing Multi Carrier Group Delay Measurement eeeecceeeseseeseeneeeeeeeens 127 Commands for Compatibility ccccccceeeseenceeeeeeeeeeeeeeeeeeeeeneeeeeeeeeeeneeeeeeeeeeeeeeeennnes 141 ARNG Xerces 147 Formats for Returned Values ASCII Format and Binary Format 147 Reference ASCII File Export Format ccccccccccscceeceeeeeeeeeeeeeeeeeeeeeeeeseeeeeeeeeeeeseeeees 147 Reference CSV File Export Format ee EER NEEN EEE NEEN EE EEE ERR EEE NEEN 149 List of Remot
17. you can define a hysteresis This setting defines an upper threshold the signal must exceed compared to the last mea surement before the reference level is adapted automatically Remote command SENSe ADJust CONFigure HYSTeresis UPPer on page 107 E N User Manual 1173 9405 02 07 52 Automatic Settings Lower Level Hysteresis When the reference level is adjusted automatically using the Auto Level function the internal attenuators and the preamplifier are also adjusted In order to avoid frequent adaptation due to small changes in the input signal you can define a hysteresis This setting defines a lower threshold the signal must fall below compared to the last mea surement before the reference level is adapted automatically Remote command SENSe ADJust CONFigure HYSTeresis LOWer on page 107 R amp S FSW K17 Analysis Trace Settings 7 Analysis General result analysis settings concerning the trace markers windows etc can be con figured via the Analysis button in the Overview They are identical to the analysis functions in the base unit except for the special window functions e TOCE TEE 54 a Taco Tele EE 57 e Seed Seilen dee ees 58 Display ee TT EE 66 ZOOM FUNCIONS teste iene teenies ee een eee deeded 66 7 1 Trace Settings The trace settings determine how the measured data is analyzed and displayed in the window Depending on the result display between 1 and 4 traces may be dis
18. 90 LEE User Manual 1173 9405 02 07 86 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Deeg Configuring Multi Carrier Group Delay Measurements 11 4 2 1 Amplitude Settings DISPlay WINDow lt n gt TRAGEe Y SCALE RLEVEL ccccccsccceeencseecsecenaceeeeaecseaetsananeeecensoess 87 DISPlay WINDow lt n gt TRACe Y SCALe RLEVel OFF Get 87 DISPlay WINDow lt n gt TRACe Y SCALe RLEVel lt ReferenceLevel gt This command defines the reference level With a reference level offset 0 the value range of the reference level is modified by the offset Parameters lt ReferenceLevel gt The unit is variable Range see datasheet RST 0 dBm Example DISP TRAC Y RLEV 60dBm Usage SCPI confirmed Manual operation See Reference Level on page 30 DISPlay WINDow lt n gt TRACe Y SCALe RLEVel OFFSet lt Offset gt This command defines a reference level offset Parameters lt Offset gt Range 200 dB to 200 dB RST OdB Example DISP TRAC Y RLEV OFFS 10dB Manual operation See Reference Level on page 30 See Shifting the Display Offset on page 30 11 4 2 2 Attenuation INPUBAT epp c0ihc2cde0ccdecedcantacndcetsansacend sane ncnadedninmae saad vdnacenadiddalvansddecdawesnadddestaniimdd anes 87 INFELIE AT REMUSHOR EIU Oi EE 88 ET T EE 88 INP EAT EAR VE 89 NPE NEE 89 INPut ATTenuation lt Attenuation gt This command defines the total attenuation for RF
19. Aborts the current measurement and immediately starts a new one Example ABOR WAI INIT IMM Aborts the current measurement and starts a new one once abor tion has been completed Usage SCPI confirmed INITiate CONMeas This command restarts a single measurement that has been stopped using INIT CONT OFF or finished in single sweep mode The measurement is restarted at the beginning not where the previous measurement was stopped As opposed to INI Tiate IMMediate this command does not reset traces in max hold minhold or average mode Therefore it can be used to continue measurements using maxhold or averaging functions EES User Manual 1173 9405 02 07 117 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements De Configuring and Performing Sweeps Example for Spectrum application INIT CONT OFF Switches to single sweep mode DISP WIND TRAC MODE AVER Switches on trace averaging SWE COUN 20 Setting the sweep counter to 20 sweeps INIT WAI Starts the measurement and waits for the end of the 20 sweeps INIT CONM WAI Continues the measurement next 20 sweeps and waits for the end Result Averaging is performed over 40 sweeps Manual operation See Continue Single Sweep on page 49 INITiate CONTinuous lt State gt This command controls the sweep mode Note that in single sweep mode you can synchronize to the end of the measurement with OPC OPC or
20. COUNGCURRent 122 ABORt This command aborts a current measurement and resets the trigger system To prevent overlapping execution of the subsequent command before the measurement has been aborted successfully use the OPC or WAI command after ABOR and before the next command For details see the Remote Basics chapter in the R amp S FSW User Manual To abort a sequence of measurements by the Sequencer use the INI Tiate SEQuencer ABORt on page 119 command EE User Manual 1173 9405 02 07 116 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements h_a eas Configuring and Performing Sweeps Note on blocked remote control programs If a sequential command cannot be completed for example because a triggered sweep never receives a trigger the remote control program will never finish and the remote channel GPIB LAN or other interface to the R amp S FSW is blocked for further commands In this case you must interrupt processing on the remote channel first in order to abort the measurement To do so send a Device Clear command from the control instrument to the R amp S FSW on a parallel channel to clear all currently active remote channels Depending on the used interface and protocol send the following commands e Visa viClear e GPIB ibclr e RSIB RSDLLibclr Now you can send the ABORt command on the remote channel performing the mea surement Example ABOR INIT IMM
21. Carrier Group Delay measurements to the R amp S FSW The Multi Carrier Group Delay application features e highly accurate group delay measurement for large spans e orthogonal measurement method e frequency converted group delay measurement e storage and loading functions for reference data e storage functions for measurement settings and results e graphical display of group delay magnitude and phase at carrier frequency points in measurement or reference signal e interactive or remote measurement control This user manual contains a description of the functionality that the application provides including remote control operation All functions not discussed in this manual are the same as in the base unit and are described in the R amp S FSW User Manual The latest version is available for download at the product homepage Installation You can find detailed installation instructions in the R amp S FSW Getting Started manual or in the Release Notes 2 1 Starting the Multi Carrier Group Delay Application The Multi Carrier Group Delay application adds a new measurement to the R amp S FSW To activate the Multi Carrier Group Delay application 1 Press the MODE key on the front panel of the R amp S FSW A dialog box opens that contains all operating modes and applications currently available on your R amp S FSW 2 Select the MC Group Delay item UI LESSER MC Group Delay User Manual 1173 9405 02
22. Delay Ref Level Level Offset Center Source Att HU Multi Carrier Config Spen Carr Spacing Frequency Offset Level Ez E Amplitude Frequency Trigger feg LG Analysis Display Config Trace 1 Marker 1 Meas Time Sweep Count Group Delay etc 1 Magnitude In addition to the main measurement settings the Overview provides quick access to the main settings dialog boxes The individual configuration steps are displayed in the order of the data flow Thus you can easily configure an entire measurement channel from input over processing to output and analysis by stepping through the dialog boxes as indicated in the Overview User Manual 1173 9405 02 07 25 R amp S FSW K17 Configuration EH Configuration Overview In particular the Overview provides quick access to the following configuration dialog boxes listed in the recommended order of processing 1 Input Settings See chapter 6 3 Input Source Settings on page 27 2 Amplitude Settings See chapter 6 4 Amplitude and Y Axis Scaling on page 29 3 Frequency Settings See chapter 6 5 Frequency Settings on page 36 4 Trigger Settings See chapter 6 6 Trigger Settings on page 38 5 Multi Carrier Configuration See chapter 6 7 Multi Carrier Configuration on page 43 6 Output Settings See chapter 6 9 Output Settings on page 49 7 Analysis See chapter 7 Analysis on page 54 8 Display Configuration See
23. Eege INPUE OVENOAG seess deeuseesdet derer eege vg egdE enn U DEn gees eege 35 Reference level 30 Settings remote ccseeencserecceneceseeneneesesteateseetenees 90 Upper Level Hysteresis ed 52 USEr manuals nsira iniii iis teaiin 6 W Windows Adding remote EEN 111 Closing remote EE 113 Configuring i Ge Layout FEMOLE sseueuuck irinen ENEE Ee 113 Maximizing remote eee cece eee eeeeeeeeeeeneees 110 Querying remote oi Ge Replacing remote sccssecesecensoneenssensneeceneenae 113 Splitting remote cccceceeeeeeeeeceeeeeeeeeeeeeeneeeeeeeees 110 Types remote wd S Window title bar information eee eeeeeeeeeeee 12 X X value Market nann N a deeg deet 60 Y Y axis Mix max v lleg siuen iaaii ia Range per division 2 ge deee ed canna eae Reference position des ale Referenc ValS irmis SCANING EE TT EE YIG preselector Activating Deactivating cccccccceeceeeeeeeeeeeeeeeneees 28 Activating Deactivating remote 0 cceeeeeeees 85 Z Zooming Activating remote ccccccceseececeeeeeeeeenteeeeeeeeeee 140 Area Multiple mode remote neeeeee eener 140 Area remote D DeacCtiVating miesnia urnana de geheed Multiple MOJE ees scksecieedi dch herded dated deCeegeied Multiple mode remote ze Remote edu deg Ne GEES NN Ee ee EReEER iesen Restoring original display Single mode Ae Single mode remote
24. For a description of such tasks see the R amp S FSW User Manual In particular this includes e Managing Settings and Results i e storing and loading settings and result data e Basic instrument configuration e g checking the system configuration customizing the screen layout or configuring networks and remote operation e Using the common status registers The following topics specific to Multi Carrier Group Delay application are described here g WAWOUUGUOIN ociceciesectiieciaatuersietvaaecdonsties E ce agianenaegeraates 75 een di Leien 80 e Activating Multi Carrier Group Delay Measurements 80 e Configuring Multi Carrier Group Delay Measurements c ccccccceeceeeeeeeeeeeeeteees 84 e Measuring Loading and Storing Calibration Data 108 e Configuring the Result Display 109 Configuring and Performing E EE 116 Retrieving ReSulisin ise eiscie eras iatet EEE 122 e Analyzing Multi Carrier Group Delay Measuremente 127 Commands for Compatibilty coisina Aa 141 11 1 Introduction Commands are program messages that a controller e g a PC sends to the instrument or software They operate its functions setting commands or events and request infor mation query commands Some commands can only be used in one way others work in two ways setting and query If not indicated otherwise the commands can be used for settings and queries The syntax of a SCPI command consists of a header and in mos
25. Group Delay MAGNitude Magnitude Measurement data MTABle Marker table PHASe Phase Measurement data RMAGnitude Magnitude Reference data RPHase Phase vs frequency Reference data SENSe ADEMod BANDwidth DEModulation SENSe ADEMod BWIDth DEModulation This command queries the measurement bandwidth Note that this command is maintained for compatibility reasons only Use SENSe BANDwidth DEMod on page 103 for new remote control programs Return values lt Span gt Default unit HZ Usage Query only SENSe JADEMod MCPHase METHod lt Method gt This command selects the method used for group delay measurements As the R amp S FSW MCGD application only supports orthogonal measurements this command returns an error if the FLATtop parameter is used Parameters lt Method gt ORTHogonal FLATtop SENSe ADEMod MCPHase SPACing lt CarrierSpacing gt Sets queries the carrier spacing in Hz between the multiple carriers Note that this command is maintained for compatibility reasons only Use SENSe CARRier SPACing on page 103 for new remote control programs Parameters lt CarrierSpacing gt Default unit HZ User Manual 1173 9405 02 07 143 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements DEE Commands for Compatibility SENSe JADEMod MCPHase STATe lt State gt This command switches to the Multi Carrier Group Delay application of the instrument
26. In Out Output Type User Defined Level Tow Pulse Length 100 0 us Send Trigger JL Trigger 3 inpar For step by step instructions on configuring triggered measurements see the main R amp S FSW User Manual EE 39 L Trigger SOUS dciccisavsiantiacidetenicsiavscussvbesied banbaeducud yanbdnateud yesewasandbeducwsandebddvansedds 39 MN EE 39 L External Trigger 11219 39 User Manual 1173 9405 02 07 38 R amp S FSW K17 Configuration Trigger Settings e TT EE 40 Ee 40 Leer si cintectaa picdetata candetacniesieiedaastastaintastianieonsuatiatannagleiaaiendd 40 ee e Leg Seiterter ed 41 E Drop OUt TIME EE 41 L EE 41 e e E E T E E 41 L Tiigger Holdoff EE 41 GT EE 42 TAJET TE 42 L Output E 42 e EE 42 L Pulse E 42 L Send Te aac raene a E a Ee 43 Trigger Source The trigger settings define the beginning of a measurement Trigger Source Trigger Source Defines the trigger source If a trigger source other than Free Run is set TRG is displayed in the channel bar and the trigger source is indicated Remote command TRIGger SEQuence SOURce on page 99 Free Run lt Trigger Source Trigger Source No trigger source is considered Data acquisition is started manually or automatically and continues until stopped explicitely Remote command TRIG SOUR IMM see TRIGger SEQuence SOURce on page 99 External Trigger 1 2 3 Trigger Source Trigger Source Data acquisition starts when the TTL sign
27. LAY out WINDow lt n gt REPLace lt WindowType gt This command changes the window type of an existing window specified by the suffix lt n gt The result of this command is identical to the LAYout REPLace WINDow command To add a new window use the LAYout WINDow lt n gt ADD command Parameters lt WindowType gt Type of measurement window you want to replace another one with See LAYout ADD WINDow on page 111 for a list of available window types Configuring and Performing Sweeps When the MCGD application is activated a continuous sweep is performed automatically However you can stop and start a new measurement any time Furthermore you can perform a sequence of measurements using the Sequencer see Multiple Measurement Channels and Sequencer Function on page 10 Useful commands for configuring sweeps described elsewhere SENSe AVERage COUNt on page 129 Remote commands exclusive to ABORU EE 116 Ill COIN EE 117 DINGS INTO E 118 INI TiatelMIMGO ate gie gege ea eege eege 118 INiTiate SEQuente ABORI orriari annainn ceneceseeiscsdcccuatdedenaccacsdetlinacesscissdedancsctedeadecnceaes 119 INITiate SEQuencer IMMediate 2 c ccccccssascedeccdecateaesdeccecnananncdnececaaneaddcncenasnenddaeecanns 119 Nma SEO tiencer MODE EE 120 SYS Tem SE EE 120 SENSe SWEep COUNt ss seeesesieseiseeetetiestettttttitsttetatttnktss ttt atttsktnsntnatetnkeanrta anet nrennrea ns 121 ISENSelSuWEep
28. MAX Defines the minimum or maximum numeric value that is supported e DEF Defines the default value e UP DOWN Increases or decreases the numeric value by one step The step size depends on the setting In some cases you can customize the step size with a corresponding command EE User Manual 1173 9405 02 07 78 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 1 6 2 11 1 6 3 Introduction Querying numeric values When you query numeric values the system returns a number In case of physical quan tities it applies the basic unit e g Hz in case of frequencies The number of digits after the decimal point depends on the type of numeric value Example Setting SENSe FREQuency CENTer 1GHZ Query SENSe FREQuency CENTer would return 1 amp 9 In some cases numeric values may be returned as text e INF NINF Infinity or negative infinity Represents the numeric values 9 9E37 or 9 9E37 e NAN Not a number Represents the numeric value 9 91E37 NAN is returned in case of errors Boolean Boolean parameters represent two states The ON state logically true is represented by ON or a numeric value 1 The OFF state logically untrue is represented by OFF or the numeric value 0 Querying boolean parameters When you query boolean parameters the system returns either the value 1 ON or the value 0 OFF Example Setting DISPl
29. Multi Carrier Config dialog box and switch to the Calibration tab Select the Calibrate button to perform a calibration measurement E TN User Manual 1173 9405 02 07 71 R amp S FSW K17 How to Perform Measurements in the Multi Carrier Group Delay Application Alternatively if a calibration measurement has already been performed with the same measurement setup select the Load Calibration Data button to load stored refer ence data The calibration measurement is performed The status of the running measurement is indicated in a dialog box During this time no other actions can be performed on the R amp S FSW The date and time of the most recently performed or loaded calibration measurement is indicated in the channel bar 14 Optionally to store the results from the performed calibration measurement to a CSV file for later use select the Store Calibration Data button 15 Once the reference data is available in the Multi Carrier Group Delay application connect the DUT between the signal generator and the R amp S FSW 16 On the R amp S FSW select the Display Config button and select the displays that are of interest to you up to 6 Arrange them on the display to suit your preferences then exit the SmartGrid mode 17 Press the RUN SINGLE key to start a new measurement The group delay is calculated and the selected results are displayed 18 To store the displayed results in a CSV file a Select the
30. OFF RST OFF Manual operation See Multiple Zoom on page 66 See Restore Original Display on page 67 See Deactivating Zoom Selection mode on page 67 11 10 Commands for Compatibility The following commands are provided for compatibility to other signal analyzers only For new remote control programs use the specified alternative commands EE User Manual 1173 9405 02 07 141 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Commands for Compatibility To set the R amp S FSW to compatible mode for previous signal analyzers use the SYST LANG command For details see the R amp S FSW User Manual CALCU E EE 142 DISPIAvE WINDOW Ee d E 142 ISENGeJADE Mod BANDwidtb DE Modulaton tn ttorosnsnrennrorornnn nene 143 SENSeJADEMad BWIDth DEMOdulation i 6000cicaasdacaciesasaselieteteseeeadecanastiesdacveasas 143 SENSe JADEMod MCPHase METHOG i ccccceccssccsceet asseenedeeteneeetdedeee cen cniebectdisaveeas 143 SENSeJADEMod MCPHase SPACiNg BE 143 ISENZGeJADEMod MChbtlaset GTATel nenene nenen nrereretorororersrsrnrnsnnn rnrn nenenene 144 SENSeJADEMod SPECI PHASE RESUM irirangi aiig eaaa ia 144 SENSeJADEMod SPECthum PHASE TYPE iiron aaia pii e 144 ISENGeJADE Mod GbpECirum GPDAN nenene 144 ISERGechaEMlee EE up SANS usteet ERENNERT REENEN 144 SENSe ADEMod SPECtrum SPAN MAXiMUM 0 ccceee cece ania 145 SENSe ADEMod SPECtrum MACGhNtudel RE Gut 1
31. R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Deeg Configuring Multi Carrier Group Delay Measurements Suffix lt port gt 2 3 Selects the trigger port to which the output is sent 2 trigger port 2 front 3 trigger port 3 rear Parameters lt Direction gt INPut Port works as an input OUTPut Port works as an output RST INPut Manual operation See Trigger 2 3 on page 42 OUTPut TRIGger lt port gt LEVel lt Level gt This command defines the level of the signal generated at the trigger output This command works only if you have selected a user defined output with OUTPut ES Ee SE E Ps Suffix lt port gt 2 3 Selects the trigger port to which the output is sent 2 trigger port 2 front 3 trigger port 3 rear Parameters lt Level gt HIGH TTL signal LOW OV RST LOW Manual operation See Trigger 2 3 on page 42 See Output Type on page 42 See Level on page 42 OUTPut TRIGger lt port gt OTYPe lt OutputType gt This command selects the type of signal generated at the trigger output Suffix lt port gt 2 3 Selects the trigger port to which the output is sent 2 trigger port 2 front 3 trigger port 3 rear E M User Manual 1173 9405 02 07 101 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 4 5 Configuring Multi Carrier Group Delay Measurements Parameters lt OutputType gt DEVice
32. RIGHt on page 137 F z y CALCulate lt n gt DELTamarker lt m gt MINimum LEFT on page 139 CALCulate lt n gt MARKer lt m gt MINimum LEFT on page 137 CALCulate lt n gt DELTamarker lt m gt MINimum NEXT on page 139 CALCulate lt n gt MARKer lt m gt MINimum NEXT on page 137 e CALCulate lt n gt DELTamarker lt m gt MINimum RIGHt on page 139 CALCulate lt n gt MARKer lt m gt MINimum RIGHt on page 137 Peak Excursion Defines the minimum level value by which a signal must rise or fall so that it will be identified as a maximum or a minimum by the search functions Remote command CALCulate lt n gt MARKer PEXCursion on page 135 7 3 2 2 Positioning Functions The following functions set the currently selected marker to the result of a peak search or set other characteristic values to the current marker value These functions are avail able as softkeys in the Marker To menu which is displayed when you press the MKR gt key or in the Marker menu ICIS CE VII EE 64 eeler dee ge ee GENEE ee 65 Search Next Pak EE 65 Search MINIMU nena E E E A 65 Search Next MINTY nessieira a aia SSC 65 Select Marker Opens a dialog box to select and activate or deactivate one or more markers quickly User Manual 1173 9405 02 07 64 R amp S FSW K17 Analysis Markers Selected State Selected State Selected State CECEN aup Con Kol oai oe Kos Remo
33. SENSe SRATe on page 105 for new remote control programs Return values lt SampleRate gt Usage Query only SENSe ADEMod STATe lt State gt This command switches to the Analog Demodulation application or disables it Note that this command is maintained for compatibility reasons only Use the INST SEL ADEM command for new remote control programs Parameters lt State gt E N User Manual 1173 9405 02 07 146 R amp S FSW K17 Annex Formats for Returned Values ASCII Format and Binary Format 12 Annex 12 1 Formats for Returned Values ASCII Format and Binary Format 147 12 2 Reference ASCII File Export Format use EEE NEE EEEEEEEEEEE REENEN 147 12 3 Reference CSV File Export Format 0 seeeseeeneeeeeeeeeeeeeeeseeeeeeeseeeeeeeeeeeeees 149 12 1 Formats for Returned Values ASCII Format and Binary Format When trace data is retrieved using the TRAC DATA or TRAC To DATA command the data is returned in the format defined using the FORMat DATA The possible formats are described here e ASCII Format FORMat ASCII The data is stored as alist of comma separated values CSV of the measured values in floating point format e Binary Format FORMat REAL 32 The data is stored as binary data Definite Length Block Data according to IEEE 488 2 each measurement value being formatted in 32 Bit IEEE 754 Floating Point Format The schema of the result string is as follow
34. TRIGGER INPUT OUTPUT connector Note Connector must be configured for Input EXT3 Trigger signal from the TRIGGER 3 INPUT OUTPUT connector Note Connector must be configured for Input RF Power First intermediate frequency IFPower Second intermediate frequency IQPower Magnitude of sampled UO data For applications that process UO data such as the UO Analyzer or optional applications RST IMMediate Example TRIG SOUR EXT Selects the external trigger input as source of the trigger signal Manual operation See Trigger Source on page 39 See Trigger Source on page 39 See Free Run on page 39 See External Trigger 1 2 3 on page 39 See IF Power on page 40 See RF Power on page 40 See IQ Power on page 40 Configuring the Trigger Output The following commands are required to send the trigger signal to one of the variable TRIGGER INPUT OUTPUT connectors The tasks for manual operation are described in Trigger 2 3 on page 42 OUTPueTRiGgersport DI RECHON asni a aa aaaea aaea 100 OUTPUUTRIGger lt sport gt EVel sin ninaa eee enaes seca senan en EA AENEA HAK an AEAEE AAAA 101 QUTPUETRIGGEr pO O TY PE eiiiai a iai a aa Aa aiaa 101 OUTPUETRIGger lt port PULSOIMMediate cire ieri eene r EE Eii 102 OUTPUETRIGger lt port gt PULSE LENG necies iiini ii eE EAEE EEE SENEE Ean 102 OUTPut TRIGger lt port gt DIRection lt Direction gt This command selects the trigger direction T User Manual 1173 9405 02 07 100
35. Type R amp S FSW Instrument model Version 1 30 Firmware version Date 20 Jan 2012 Date of data set storage Mode MCGD Channel type Ref Level 0 Reference level Level offset 0 Reference level offset Rf Att 10 Input attenuation EI Att 0 Electronic attentuation Center Freq 10000000 Hz Freq Offset 0 Hz Center frequency Frequency offset Span 10000000 Hz Frequency range Carrier Spacing 10000000 Hz Distance between two carriers Meas Time 0 00003128125 s Measurement time Group Delay Absolute Value type for group delay Carrier Offset AUTO Auto mode for carrier offset Carrier Offset 0 Hz Carrier offset value Sweep Count 0 Number of sweeps set Preamplifier OFF Preamplifier status Window 1 Magnitude Window name containing trace Trace 1 Selected trace Trace Mode Clear Write Display mode of trace CLR WRITE AVERAGE MAX HOLD MINHOLD x Axis Linear Scaling of x axis linear LIN or logarithmic LOG Start 95000000 Hz Stop 105000000 Hz Start stop value of the display range x Unit Hz Unit of x values Hz with span gt 0 s with span 0 dBm dB with statistics measurements y Axis Linear Scaling of y axis linear LIN or logarithmic LOG Level Range 100 dB Display range in y direction Unit dB with x axis LOG with x axis LIN User Manual 1173 9
36. WAI In continuous sweep mode synchronization to the end of the measurement is not possible Thus it is not recommended that you use continuous sweep mode in remote control as results like trace data or markers are only valid after a single sweep end synchronization For details on synchronization see the Remote Basics chapter in the R amp S FSW User Manual If the sweep mode is changed for a measurement channel while the Sequencer is active see INI Tiate SEQuencer IMMediate on page 119 the mode is only considered the next time the measurement in that channel is activated by the Sequencer Parameters lt State gt ON OFF 0 1 ON 1 Continuous sweep OFF 0 Single sweep RST 1 Example INIT CONT OFF Switches the sweep mode to single sweep INIT CONT ON Switches the sweep mode to continuous sweep Manual operation See Continuous Sweep RUN CONT on page 48 INITiate IMMediate This command starts a single new measurement EE User Manual 1173 9405 02 07 118 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements DEET Configuring and Performing Sweeps With sweep count or average count gt 0 this means a restart of the corresponding number of measurements With trace mode MAXHold MINHold and AVERage the previous results are reset on restarting the measurement You can synchronize to the end of the measurement with OPC OPC or WAI For details on synchronizati
37. amp S FSW K17 5 3 5 4 Measurement Basics The Calibration Reference Measurement The Calibration Reference Measurement The Multi Carrier Group Delay measurement method requires a preliminary reference measurement of the input signal without the device under test before the actual group delay measurement This reference measurement is also referred to as the calibration measurement The results of this measurement are stored internally in the R amp S FSW to be used as a reference for the group delay calculation in the subsequent measurement with the DUT The results of the calibration measurement can be stored to a file and loaded as reference data for future measurements with the same setup The date and time of the most recently performed or loaded calibration measurement is indicated in the channel bar Measurement Setup Before a Multi Carrier Group Delay measurement can be performed the R amp S FSW must be set up in a test environment This section describes the required settings of the R amp S FSW Before starting the measurements the R amp S FSW has to be configured cor rectly and supplied with power as described in the R amp S FSW Getting Started manual Preparing For Use Furthermore the application firmware R amp S FSW K17 must be enabled Installation and enabling of the application firmware are described in the R amp S FSW Getting Started manual or in the Release Notes A Multi Carrier Group Delay measureme
38. are executed otherwise an error will occur A detailed programming example is provided in the Operating Modes chapter in the R amp S FSW User Manual E N User Manual 1173 9405 02 07 120 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Deg Parameters lt State gt Example Configuring and Performing Sweeps ON OFF 0 1 ON 1 The Sequencer is activated and a sequential measurement is started immediately OFF 0 The Sequencer is deactivated Any running sequential measure ments are stopped Further Sequencer commands INIT SEQ are not available RST 0 SYST SEQ ON Activates the Sequencer INIT SEQ MODE SING Sets single Sequencer mode so each active measurement will be performed once INIT SEQ IMM Starts the sequential measurements SYST SEQ OFF SENSe SWEep COUNt lt SweepCount gt This command defines the number of sweeps the R amp S FSW uses to average traces During calibration measurements the phase and amplitude values are averaged over the defined number of sweeps In case of continuous sweeps the R amp S FSW calculates the moving average over the average count In case of single sweep measurements the R amp S FSW stops the measurement and cal culates the average after the average count has been reached Parameters lt SweepCount gt Example Usage Manual operation If you set a sweep count of 0 o
39. chapter 7 4 Display Configuration on page 66 The main configuration settings and dialog boxes are also available via the MCGD Meas menu which is displayed when you press the MEAS CONFIG key To configure settings gt Select any button in the Overview to open the corresponding dialog box Select a setting in the channel bar at the top of the measurement channel tab to change a specific setting For step by step instructions on configuring Multi Carrier Group Delay measurements see chapter 9 How to Perform Measurements in the Multi Carrier Group Delay Appli cation on page 70 Preset Channel Select the Preset Channel button in the lower lefthand corner of the Overview to restore all measurement settings in the current channel to their default values Note that the PRESET key on the front panel restores all measurements in all mea surement channels on the R amp S FSW to their default values See chapter 6 1 Default Settings for Multi Carrier Group Delay measurements on page 24 for details Remote command SYSTem PRESet CHANnel EXECute on page 84 EE User Manual 1173 9405 02 07 26 R amp S FSW K17 Configuration 6 3 d Input Source Settings Specifics for The measurement channel may contain several windows for different results Thus the settings indicated in the Overview and configured in the dialog boxes vary depending on the selected window Select an active wi
40. disabled only the pure result data from the selected traces and tables is exported See chapter 12 2 Reference ASCII File Export Format on page 147 for details Parameters lt State gt ON OFF 0 1 RST 1 Usage SCPI confirmed Manual operation See Include Instrument Measurement Settings on page 57 E N User Manual 1173 9405 02 07 126 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Analyzing Multi Carrier Group Delay Measurements FORMat DEXPort TRACes lt Selection gt This command selects the data to be included in a data export file see MMEMory STORe lt n gt TRACe on page 126 Parameters lt Selection gt SINGle Only a single trace is selected for export namely the one specified by the MMEMory STORe lt n gt TRACe command ALL Selects all active traces and result tables e g Result Summary marker peak list etc in the current application for export to an ASCII file The lt trace gt parameter for the MMEMory STORe lt n gt TRACe command is ignored RST SINGle Usage SCPI confirmed Manual operation See Export all Traces and all Table Results on page 57 11 9 Analyzing Multi Carrier Group Delay Measurements 11 9 1 The following commands are required to analyze MCGD measurements in a remote environment CONNQUIING Eege edd AER deen 127 Setting Up individual Markis ieicccc cciccucetecetesiseedas aia RER ARENS 130 Ge
41. duplicated must be selected first using the INST SEL command This command is not available if the MSRA Master channel is selected Example INST SEL Spectrum INST CRE DUPL Duplicates the channel named Spectrum and creates a new mea surement channel named Spectrum 2 Usage Event INSTrument CREate NEW lt ChannelType gt lt ChannelName gt This command adds an additional measurement channel The number of measurement channels you can configure at the same time depends on available memory Parameters lt ChannelType gt Channel type of the new channel For a list of available channel types see table 11 1 lt ChannelName gt String containing the name of the channel The channel name is displayed as the tab label for the measurement channel Note If the specified name for a new channel already exists the default name extended by a sequential number is used for the new channel see table 11 1 Example INST CRE SAN Spectrum 2 Adds an additional spectrum display named Spectrum 2 INSTrument CREate REPLace lt ChannelName1 gt lt ChannelType gt lt ChannelName2 gt This command replaces a measurement channel with another one Parameters lt ChannelName1 gt String containing the name of the measurement channel you want to replace lt ChannelType gt Channel type of the new channel For a list of available channel types see table 11 1 lt ChannelName2 gt String containing the name o
42. ey al Two windows are displayed named 2 at the top or left and 1 at the bottom or right Usage Query only LAYout IDENtify WINDow lt WindowName gt This command queries the index of a particular display window Note to query the name of a particular window use the LAYout WINDow lt n gt IDENtify query Query parameters lt WindowName gt String containing the name of a window Return values lt WindowIndex gt Index number of the window Usage Query only E N User Manual 1173 9405 02 07 112 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Deg Configuring the Result Display LAYout REMove WINDow lt WindowName gt This command removes a window from the display Parameters lt WindowName gt String containing the name of the window In the default state the name of the window is its index Usage Event LAYout REPLace WINDow lt WindowName gt lt WindowT ype gt This command replaces the window type for example from Diagram to Result Sum mary of an already existing window while keeping its position index and window name To add a new window use the LAYout ADD WINDow command Parameters lt WindowName gt String containing the name of the existing window By default the name of a window is the same as its index To determine the name and index of all active windows use the LAYout CATalog WINDow query lt WindowType
43. for new remote control programs User Manual 1173 9405 02 07 98 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Xi SS eee Configuring Multi Carrier Group Delay Measurements Parameters lt Time gt Default unit S TRIGger SEQuence SLOPe lt Type gt For all trigger sources except time you can define whether triggering occurs when the signal rises to the trigger level or falls down to it Parameters lt Type gt POSitive NEGative POSitive Triggers when the signal rises to the trigger level rising edge NEGative Triggers when the signal drops to the trigger level falling edge RST POSitive Example TRIG SLOP NEG Manual operation See Trigger Source on page 39 See Slope on page 42 TRIGger SEQuence SOURce lt Source gt This command selects the trigger source Note on external triggers If a measurement is configured to wait for an external trigger signal in a remote control program remote control is blocked until the trigger is received and the program can con tinue Make sure this situation is avoided in your remote control programs User Manual 1173 9405 02 07 99 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 4 4 2 Configuring Multi Carrier Group Delay Measurements Parameters lt Source gt IMMediate Free Run EXTernal Trigger signal from the TRIGGER INPUT connector EXT2 Trigger signal from the
44. for result data See chapter 12 2 Reference ASCII File Export Format on page 147 for details Remote command FORMat DEXPort HEADer on page 126 User Manual 1173 9405 02 07 57 R amp S FSW K17 Analysis BREET Markers Trace to Export Defines an individual trace that will be exported to a file This setting is not available if Export all Traces and all Table Results is selected Decimal Separator Defines the decimal separator for floating point numerals for the data export files Eval uation programs require different separators in different languages Remote command FORMat DEXPort DSEParator on page 126 Export Trace to ASCII File Opens a file selection dialog box and saves the selected trace in ASCII format dat to the specified file and directory The results are output in the same order as they are displayed on the screen window by window trace by trace and table row by table row Both measurement and reference calibration traces can be exported to an ASCII file However the calibration data stored in an ASCII file cannot be re imported to the R amp S FSW to re import the data use Storing Calibration Data instead Note To store the measurement results for all traces in all windows in csv format use the Storing Measurement Results command in the Save Recall gt Export menu For details on the file formats see chapter 12 Annex on page 147 Remote command MMEMory STORe lt
45. frequency for the RF signal Meas Time Measurement time Span Measurement bandwidth Last Ref Cal Timestamp of most recently performed reference calibration if it has already been performed Ref Cal Freq Frequency used for reference calibration Group Delay Mode of group delay result display absolute or relative Carrier Offset Offset of the carrier from the center frequency In addition the channel bar also displays information on instrument settings that affect the measurement results even though this is not immediately apparent from the display of the measured values e g transducer or trigger settings This information is displayed User Manual 1173 9405 02 07 11 R amp S FSW K17 Welcome to the Multi Carrier Group Delay Application De Understanding the Display Information only when applicable for the current measurement For details see the R amp S FSW Getting Started manual Window title bar information For each diagram the header provides the following information 1 Magnitude B Fig 2 1 Window title bar information in Multi Carrier Group Delay application 1 Window number 2 Window type 3 Trace color 4 Trace number 5 Trace mode Diagram footer information The diagram footer beneath the diagram contains the center frequency and span and the range displayed per division Status bar information Global instrument settings the instrument status and any irregularities are in
46. gt ON OFF RST OFF Example DIAG SERV NSO ON Manual operation See Noise Source on page 50 Automatic Settings Some settings can be adjusted by the R amp S FSW automatically according to the current measurement settings and signal characteristics d MSRA operating mode In MSRA operating mode the following automatic settings are not available as they require a new data acquisition However the GSM application cannot perform data acquisition in MSRA operating mode SENSe ADJUStCONFiguife DURAUION 02 0 2 206000 5 decid eens anaa 106 SENSe JADJust CONFigure DURation MODE 2 ci c c c2sedeasececedecenenediecensncecaddanseectnattenes 106 ISENZGelAD lust CONEioure Hv teresle LOMer 107 SENS Aust CONEioure H Gteresles Uber 107 SENSE JAD JuSt LEVE oS eccciais sever ai AE a daasdey caus deeg 108 SENSe ADJust CONFigure DURation lt Duration gt In order to determine the ideal reference level the R amp S FSW performs a measurement on the current input data This command defines the length of the measurement if SENSe ADJust CONFigure DURation MODE is set to MANual Parameters lt Duration gt Numeric value in seconds Range 0 001 to 16000 0 RST 0 001 Default unit s Example ADJ CONF DUR MODE MAN Selects manual definition of the measurement length ADJ CONF LEV DUR 5ms Length of the measurement is 5 ms Manual operation See Changing the Automatic Measurement Time Meastime Manua
47. gt ON The automatic reset is off OFF The automatic reset is on RST OFF Example DISP WIND TRAC3 MODE HCON ON Switches off the reset function Manual operation See Hold on page 55 DISPlay WINDow lt n gt TRACe lt t gt STATe lt State gt This command turns a trace on and off The measurement continues in the background Parameters lt State gt ON OFF 0 1 RST Trace 1 1 Trace 2 4 0 Example DISP TRAC3 ON Usage SCPI confirmed Manual operation See Trace 1 Trace 2 Trace 3 Trace 4 on page 55 See Trace 1 Trace 2 Trace 3 Trace 4 Softkeys on page 57 SENSe JAVERage COUNt lt AverageCount gt This command defines the number of sweeps that the application uses to average traces In case of continuous sweeps the application calculates the moving average over the average count In case of single sweep measurements the application stops the measurement and cal culates the average after the average count has been reached Parameters lt AverageCount gt If you set an average count of 0 or 1 the application performs one single sweep in single sweep mode In continuous sweep mode if the average count is set to 0 a moving average over 10 sweeps is performed Range 0 to 32767 RST 0 Usage SCPI confirmed Manual operation See Average Count on page 56 E N User Manual 1173 9405 02 07 129 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Analyzin
48. gt Type of result display you want to use in the existing window See LAYout ADD WINDow on page 111 for a list of available window types Example LAY REPL WIND 1 MTAB Replaces the result display in window 1 with a marker table LAYout SPLitter lt Index1 gt lt Index2 gt lt Position gt This command changes the position of a splitter and thus controls the size of the windows on each side of the splitter As opposed to the DISPlay WINDow lt n gt SIZE on page 110 command the LAYout SPLitter changes the size of all windows to either side of the splitter perma nently it does not just maximize a single window temporarily Note that windows must have a certain minimum size If the position you define conflicts with the minimum size of any of the affected windows the command will not work but does not return an error LSS N User Manual 1173 9405 02 07 113 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements uX aA aa Configuring the Result Display y 100 x 100 y 100 102 12 dim x 0 y 0 x 100 Fig 11 1 SmartGrid coordinates for remote control of the splitters Parameters lt Index1 gt The index of one window the splitter controls lt Index2 gt The index of a window on the other side of the splitter lt Position gt New vertical or horizontal position of the splitter as a fraction of the screen area without channel and status bar and softkey menu The point
49. input If an electronic attenuator is available and active the command defines a mechanical attenuation see INPut EATT STATe on page 89 User Manual 1173 9405 02 07 87 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements SSS ES ae Configuring Multi Carrier Group Delay Measurements If you set the attenuation manually it is no longer coupled to the reference level but the reference level is coupled to the attenuation Thus if the current reference level is not compatible with an attenuation that has been set manually the command also adjusts the reference level Parameters lt Attenuation gt Range see data sheet Increment 5 dB RST 10 dB AUTO is set to ON Example INP ATT 30dB Defines a 30 dB attenuation and decouples the attenuation from the reference level Usage SCPI confirmed Manual operation See RF Attenuation on page 31 See Attenuation Mode Value on page 31 INPut ATTenuation AUTO lt State gt This command couples or decouples the attenuation to the reference level Thus when the reference level is changed the R amp S FSW determines the signal level for optimal internal data processing and sets the required attenuation accordingly Parameters lt State gt ON OFF 0 1 RST 1 Example INP ATT AUTO ON Couples the attenuation to the reference level Usage SCPI confirmed Manual operation See RF Attenuation on page 31 See Attenuation Mode Value o
50. measurements are performed Sequential operation itself is independant of the currently displayed tab For details on the Sequencer function see the R amp S FSW User Manual Understanding the Display Information The following figure shows a measurement diagram during analyzer operation All dif ferent information areas are labeled They are explained in more detail in the following sections EE User Manual 1173 9405 02 07 10 R amp S FSW K17 MultiView Spectrum Ref Level Br Att Freq 1 ep et 1 Magnitude 2 CF 1 0 Git 3 Group Delay Welcome to the Multi Carrier Group Delay Application Understanding the Display Information Rk RS GroupDelay Meas Time Last Ref Cal Group Delay At Span ie Ret Cal Freq 1 t 3 2 Phase E MbiztCF 1 0 Ghz 1 Channel bar for firmware and measurement settings 2 3 Window title bar with diagram specific trace information 4 Diagram area 5 Diagram footer with diagram specific information depending on evaluation 6 Instrument status bar with error messages progress bar and date time display Channel bar information In the Multi Carrier Group Delay application the R amp S FSW shows the following settings Table 2 1 Information displayed in the channel bar in the Multi Carrier Group Delay application Ref Level Reference level Att Mechanical and electronic RF attenuation Offset Reference level offset Freq Center
51. n gt TRACe on page 126 7 3 Markers Markers help you analyze your measurement results by determining particular values in the diagram Thus you can extract numeric values from a graphical display Markers are configured in the Marker dialog box which is displayed when you do one of the following e Inthe Overview select Analysis and switch to the vertical Marker tab e Press the MKR key then select the Marker Config softkey Marker SUNN E 58 Marker Search Settings and Positioning Funchons EE 63 7 3 1 Marker Settings Marker settings can be configured via the MARKER key or in the Marker dialog box To display the Marker dialog box do one of the following e Press the MKR key then select the Marker Config softkey e Inthe Overview select Analysis and switch to the vertical Marker tab User Manual 1173 9405 02 07 58 R amp S FSW K17 Analysis 7 3 1 1 Markers The remote commands required to define these settings are described in chapter 11 9 3 General Marker Settings on page 134 individual Marker SOUP ccissiscccctedeidicacccstccsiasuasunetedcd a a aiaia a 59 General Marker Stings 222 20 ccetee ccc cecaeee ee teteeeateee eee skene ete caeeeedanebene ee saenaiee serena 61 Individual Marker Setup In the Mutli Carrier Group Delay application up to 17 markers or delta markers can be activated for each window simultaneously Initial marker setup is performed using th
52. name of the channel SYSTem PRESet CHANnel EXECute This command restores the default instrument settings in the current channel Use INST SEL to select the channel Example INST Spectrum2 Selects the channel for Spectrum2 SYST PRES CHAN EXEC Restores the factory default settings to the Spectrum2 channel Usage Event Manual operation See Preset Channel on page 26 Configuring Multi Carrier Group Delay Measurements The commands required to configure a Multi Carrier Group Delay measurement in a remote environment are described here 6 RIP EE 84 e Configuring the Vertical Axis Amplitude Gcalmg AA 86 Ge TE EE 93 Triggering Measurcinents i tiesto Heike dei beeen eee 95 Vu Tee UI DEE 102 Configuring the e e EE 105 AWOMAUC Settings didier idl eda 106 RF Input INPUPAT Tenuations PROTecton t 2sdgedehkske enge EENS Seege Seege ees 85 INPO ere Tel EE 85 INPUURILTenHPASS STA Te teste NEE ANEREN SEENEN E 85 INPUGFIL Get VIG STAM GD E 85 Ee MI 86 MINORS E 86 LEE User Manual 1173 9405 02 07 84 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements EE Configuring Multi Carrier Group Delay Measurements INPut ATTenuation PROTection RESet This command resets the attenuator and reconnects the RF input with the input mixer after an overload condition occured and the protection mechanism intervened The error status bit bit 3 in the STAT
53. or disables it Note that this command is maintained for compatibility reasons only Use the INST SEL MCGD command for new remote control programs see INSTrument SELect on page 83 Parameters lt State gt SENSe JADEMod SPECtrum PHASe RESult lt WindowType gt This command returns the trace data of the first trace of the given type within the phase window Note that this command is maintained for compatibility reasons only Use TRACe lt n gt DATA on page 125 for new remote control programs Query parameters lt WindowType gt WRITe AVERage MINHold MAXHold Usage Query only SENSe JADEMod SPECtrum PHASe TYPE lt Trace1 gt lt Trace2 gt lt Trace3 gt This command sets the modes of the first three traces of phase windows Note that this command is maintained for compatibility reasons only Use DISPlay WINDow lt n gt TRACe lt t gt MODE on page 128 for new remote control programs Parameters lt Trace1 gt WRITe AVERage MINHold MAXHold VIEW OFF lt Trace2 gt WRITe AVERage MINHold MAXHold VIEW OFF lt Trace3 gt WRITe AVERage MINHold MAXHold VIEW OFF SENSe JADEMod SPECtrum SPAN lt Frequency gt Sets queries the frequency span in Hz Note that this command is maintained for compatibility reasons only Use the SENSe FREQuency SPAN on page 104 command for new remote control programs Parameters lt Frequency gt Default unit HZ SENSe
54. to try out the application immediately Optimizing and Troubleshooting the Measurement Hints and tips on how to handle errors and optimize the test setup Remote Commands for Multi Carrier Group Delay Measurements Remote commands required to configure and perform Multi Carrier Group Delay measurements in a remote environment sorted by tasks Commands required to set up the environment or to perform common tasks on the instrument are provided in the main R amp S FSW User Manual Programming examples demonstrate the use of many commands and can usually be executed directly for test purposes Annex Reference material List of remote commands Alpahabetical list of all remote commands described in the manual Index User Manual 1173 9405 02 07 5 R amp S FSW K17 Preface Documentation Overview 1 2 Documentation Overview The user documentation for the R amp S FSW consists of the following parts e Getting Started printed manual e Online Help system on the instrument e Documentation CD ROM with Getting Started User Manuals for base unit and options Service Manual Release Notes Data sheet and product brochures Online Help The Online Help is embedded in the instrument s firmware It offers quick context sen sitive access to the complete information needed for operation and programming Online help is available using the icon on the toolbar of the R amp S FSW Getting Started This man
55. zero span or UO measurements the third IF represents the center frequency The trigger threshold depends on the defined trigger level as well as on the RF attenu ation and preamplification For details on available trigger levels and trigger bandwidths see the data sheet This trigger source is only available for RF input Note Be aware that in auto sweep type mode due to a possible change in sweep types the trigger bandwidth may vary considerably for the same RBW setting Remote command TRIG SOUR IFP see TRIGger SEQuence SOURce on page 99 RF Power Trigger Source Trigger Source Defines triggering of the measurement via signals which are outside the displayed mea surement range For this purpose the instrument uses a level detector at the first intermediate frequency The input signal must be in the frequency range between 500 MHz and 8 GHz The resulting trigger level at the RF input depends on the RF attenuation and preamplification For details on available trigger levels see the data sheet Note If the input signal contains frequencies outside of this range e g for fullspan measurements the sweep may be aborted and a message indicating the allowed input frequencies is displayed in the status bar A Trigger Offset Trigger Polarity and Trigger Holdoff to improve the trigger stability can be defined for the RF trigger but no Hysteresis Remote command TRIG SOUR RFP see TRIGger SEQuence SOURc
56. 1 no averaging maxhold or minhold operations are per formed Remote command SENSe SWEep COUNt on page 121 6 9 Output Settings The R amp S FSW can provide output to special connectors for other devices For details on connectors refer to the R amp S FSW Getting Started manual Front Rear Panel View chapters O How to provide trigger signals as output is described in detail in the R amp S FSW User Manual Output settings can be configured via the INPUT OUTPUT key or in the Outputs dialog box User Manual 1173 9405 02 07 49 R amp S FSW K17 Configuration Output Settings Output Digital IQ IF Video Output IF Out Frequency Noise Source Trigger 2 Trigger 3 EE 50 WAQQGE EE 50 e EE 51 an EE 51 b al ET 51 L Send Tar Eed eege 51 Noise Source Switches the supply voltage for an external noise source on or off External noise sources are useful when you are measuring power levels that fall below the noise floor of the R amp S FSW itself for example when measuring the noise level of a DUT Remote command DIAGnostic SERVice NSOurce on page 105 Trigger 2 3 Defines the usage of the variable TRIGGER INPUT OUTPUT connectors where Trigger 2 TRIGGER INPUT OUTPUT connector on the front panel Trigger 3 TRIGGER 3 INPUT OUTPUT connector on the rear panel Trigger 1 is INPUT only Note Providing trigger signals as output is described in detail in the R amp S FSW User M
57. 134 CALCulate lt n gt MARKer lt m gt Y on page 123 User Manual 1173 9405 02 07 19 R amp S FSW K17 Measurement Basics Definitions 5 Measurement Basics Some background knowledge on basic terms and principles used in Multi Carrier Group Delay measurements is provided here for a better understanding of the required config uration settings 5 1 Definitions Group delay Group delay is a measure of phase distortion and defined as the derivation of phase over frequency 1 d t f KS S af with P delta f unwrap CH f Peal f Gain Magnitude flatness The gain also referred to as the magnitude flatness or amplitude flatness is defined as the relation between the measured magnitude and the reference calibration magnitude Gain f r 2 cal The gain describes the transmission behavior of the DUT 5 2 The Multi Carrier Measurement The R amp S FSW Multi Carrier Group Delay application evaluates an input signal provided by a signal generator A signal consisting of several unmodulated carriers with a fixed step size is used as an input signal Span The frequency span to be swept during the measurement is determined by the number of carriers in the input signal and the spacing between them It is recommended that you set the span according to the following equation Span Number of carriers 1 carrier spacing Af EE User Manual 1173 9405 02 07 20 R amp S FSW K17 Measurement Basic
58. 405 02 07 148 R amp S FSW K17 Annex Reference CSV File Export Format File contents Description Ref Position 100 Position of reference value referred to diagram limits 0 lower edge Ref Value 0 0 dBm Reference value y Unit dBm Unit of y values dB V A W depending on the selected unit with y axis LOG or with y axis LIN Data section Values 1001 Number of measurement points 95000000 20 5 Measured values lt x value gt lt y value gt 96000000 20 3 97000000 24 2 12 3 Reference CSV File Export Format Measurement results and calibration data can be exported to a file in CSV format for further evaluation in other applications Note that as opposed to the Export Trace to ASCII File storing the measurement results in csv format includes all traces in all windows not just one single trace The file consists of the header containing important parameters and a data section con taining the measurement data Generally the format of this CSV file can be processed by spreadsheet calculation pro grams e g MS Excel Different language versions of evaluation programs may require a different handling of the decimal point Thus you can define the decimal separator to be used decimal point or comma see Decimal Separator on page 48 The data of the file header consist of three columns each separated by a semicolon parameter name numeric value basic unit The data section
59. 45 ISENSeIADEMod SPECHmumtMAGNitudeftTebE 145 SENSSADEMOGIM TIME 5 ed eg e ei geEN ARENS eE SEN feactbueset nes EES ENNER Nee 145 ISENSSTADEMOG MW TIMG AU TO DEE 146 ISENSeIADEMod RL ENG 146 ER ENKE 146 IGENSeIADEModtSTATel 146 CALCulate lt n gt FEED lt Evaluation gt This command selects the evaluation method of the measured data that is to be displayed in the specified window This command queries or sets the diagram type for magnitude or for phase Note that this command is maintained for compatibility reasons only Use the LAYout commands for new remote control programs see chapter 11 6 2 Working with Windows in the Display on page 110 Parameters lt Evaluation gt XFRequency SPECtrum MAGNitude Magnitude diagram XFRequency SPECtrum PHASe Phase diagram DISPlay WINDow lt n gt TYPE lt ResultType gt This command selects the results displayed in a measurement window Note that this command is maintained for compatibility reasons only Use the LAYout commands for new remote control programs see chapter 11 6 2 Working with Windows in the Display on page 110 User Manual 1173 9405 02 07 142 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Commands for Compatibility Parameters lt ResultType gt Table 11 3 lt WindowType gt parameter values for Multi Carrier Group Delay K17 mode Parameter value Window type GAIN Gain GDELay
60. 9 lte le Default values Display EE Setting S ioraa aa a EAEE Staing EE MC Group Delay ADSOIUTE oirne eira E Application e Measurement method sssssiesssieeesieeerreseressrereerrrnsee 13 Measurement Method DEEN 13 Method orthogonal c ccecceeeeeceeeeeeeeeeneeeeeteeeeeees 21 ProCe dUre isse Sites edi deeg ac dee Remote control i Tue EE Te EE Time Tim Dis Play oscine Eder deeg ACEL 11 Measurement channel Creating remote s ccicchiseaactecteeiieeessies 81 Deleting remote ceccceeeeceeeeceeeeeeeeeeneeeeeeeeeeenaee 82 Duplicating remote cccceeeeeeeceeeeeeeeeseeteeeeeeeaee 81 Querying remote oe Se Renaming remote cccccceeeeeeeeeeceeeeeeeeeeeeneeeeeees 83 Replacing remote A 81 Measurement time AuitO S6lINGS seirer isna encanta ark a 52 Min max values VeAMIS erea e geed a nied 35 Minimum Marker positioning c ceeeeeeeeteeeeeeeeeeeteeeeetaeee 65 Next si Softkey MKR KOY sini iea AREE 58 MKR gt EE 63 64 Multi carrier Measurement eiiivcancetdveinaaveninrinc aii diets 20 Multi Carrier Measurement method s ssssiseeeeeesieeeereseesrrerserrrneee 13 Multi carriers Aligning with trace points eceeeeeeeeeeeeeeeteeeeees 21 Offset f SPACING ET eel avetienente este 45 Multiple Measurement channels 2 0 0eeeeeeeeeeeeeeeeeeeees 10 Multiple 200M WEE 66 N Next Minimum Marke
61. 92 EE User Manual 1173 9405 02 07 34 R amp S FSW K17 Configuration 6 4 3 Amplitude and Y Axis Scaling Y Axis Reference Position Configuring a Reference Point and Divisions Defines the position of the Y Axis Reference Value on the y axis The position is defined as a percentage value where 0 refers to the bottom edge 100 refers to the top edge of the screen The y axis is adapted so that the reference value is displayed at the ref erence position Remote command DISPlay WINDow lt n gt TRACe Y SCALe RPOSition on page 92 Range per Division Configuring a Reference Point and Divisions Defines the value range to be displayed per division Since the display consists of 10 divisions by default the displayed range is Range 10 lt Range per Division gt Note If fewer divisions are displayed e g because the window is reduced in height the range per division is increased in order to display the same result range in the smaller window In this case the range per division does not correspond to the actual display Remote command DISPlay WINDow lt n gt TRACe Y SCALe PDIVision on page 92 Defining Min and Max Values Defines the displayed range using minimum and maximum values Remote command DISPlay WINDow lt n gt TRACe Y SCALe MINimum on page 91 DISPlay WINDow lt n gt TRACe Y SCALe MAXimum on page 90 Scale Mode For Gain display only Defines the scaling method for t
62. ADD 1 RIGH RPH see LAYout ADD WINDow on page 111 Group Delay Displays the time deviations of the signal versus frequency Note This result display requires a calibration measurement see Calibrate Execute Reference Calibration on page 47 EE User Manual 1173 9405 02 07 17 R amp S FSW K17 Measurements and Result Display a ee a Evaluation Methods for Multi Carrier Group Delay 100 0 kHz Span 1 0 MHz Remote command LAY ADD 1 RIGH GRPD see LAYout ADD WINDow on page 111 Gain Displays the gain in magnitude from the reference trace to the measurement trace in dB or percent This diagram characterizes the transmission behavior of the DUT Note This result display requires a calibration measurement see Calibrate Execute Reference Calibration on page 47 1 89 MHz Span 18 9 MHz Remote command LAY ADD 1 RIGH GAIN see LAYout ADD WINDow on page 111 Marker Table Displays a table with the current marker values for the active markers This table may be displayed automatically if configured accordingly see Marker Table Display on page 62 E N User Manual 1173 9405 02 07 18 R amp S FSW K17 Measurements and Result Display El Evaluation Methods for Mut Carter Group Delay Stimulus Function Function Result Remote command LAY ADD 1 RIGH MTAB see LAYout ADD WINDow on page 111 Results CALCulate lt n gt MARKer lt m gt X on page
63. AI Starts a sweep and waits for its end CALC DELT2 ON Switches on delta marker 2 CALC DELT2 Y Outputs measurement value of delta marker 2 Usage Query only CALCulate lt n gt MARKer lt m gt Y This command queries the position of a marker on the y axis If necessary the command activates the marker first To get a valid result you have to perform a complete measurement with synchronization to the end of the measurement before reading out the result This is only possible for single sweeps See also INIT Tiate CONTinuous on page 118 Return values lt Result gt Result at the marker position Example INIT CONT OFF Switches to single measurement mode CALC MARK2 ON Switches marker 2 INIT WAI Starts a measurement and waits for the end CALC MARK2 Y Outputs the measured value of marker 2 Usage Query only Manual operation See Marker Table on page 18 E N User Manual 1173 9405 02 07 123 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements SSS GaMMa See Retrieving Results 11 8 2 Retrieving Trace Results The following remote commands are required to retrieve the trace results in a remote environment DISPlay WINDows lt n gt TRACe lt t gt LENGth sce csesssscsescsesscsessssesesstsesavsnsevansessvevsesevssenees 124 ei EE 124 MMEMor STORe MCGDMEAS 124 E a A E ne E 125 EAE E AEN E N N ET 125 DISPlay WINDow lt n gt TRACe lt t gt LENGth Q
64. BTS K84 1xEV DO MS R amp S FSW MDO 1xEV DO MS K85 WLAN R amp S FSW K91 WLAN WLAN LTE R amp S FSW K10x LTE LTE Note the default channel name is also listed in the table If the specified name for a new channel already exists the default name extended by a sequential number is used for the new channel INSTrument REName lt ChannelName1 gt lt ChannelName2 gt This command renames a measurement channel Parameters lt ChannelName1 gt String containing the name of the channel you want to rename lt ChannelName2 gt String containing the new channel name Note that you can not assign an existing channel name to a new channel this will cause an error Example INST REN Spectrum2 Spectrum3 Renames the channel with the name Spectrum2 to Spectrum3 INSTrument SELect lt ChannelType gt lt ChannelName gt This command activates a new measurement channel with the defined channel type or selects an existing measurement channel with the specified name See also INSTrument CREate NEW on page 81 E SSS User Manual 1173 9405 02 07 83 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 4 11 4 1 Configuring Multi Carrier Group Delay Measurements Parameters lt ChannelType gt MCGD Multi Carrier Group Delay application R amp S FSW K17 For a list of available channel types see table 11 1 lt ChannelName gt String containing the
65. Dow nzTR ACect MODE rattaan naenn ennenen e a 128 DlSblavf WiNDow nzTR ACect MODE HCOhNtnuous nnt 128 DlSblavf WiN Dow nzTR ACectGtGrATel nenene Ea 129 DISPl yEWINDOWws p2 TYP Espree aa eaa aE e E E ea A EN NARE aae A T DISPlay WINDow lt n gt ZOOM AREA D DlSblavf WiNDow nzlZOOMMUlL Tiple zo0omz AREA nennt 140 DlSblavf WiNDow nzlZOOMMUlLTiple zo0omzGTATe Ent 141 DISPlay WINDow lt n gt ZOOM STATE cccccceeceeeceeeeeceseeceeeeeeeeeeeeeeaecceeesaeecseeseeeesaeeseaeesaeesseeseaeeeeeeseeeeeees 140 FObRMat DE vbort DGEbarator EEEEEESANEEEAAEEAESAEEENEEEEEEEEEEEEEEA EAE En Annn anane 126 FORMat DEXPOnt HEAD 6 Mire ar eaaa ra aa Rae E a E Aeaaeai E Ean E Oa AER EEEE EERE TERIA 126 FORMat DEXPort TRACes 127 FORMat DATA sseitsccisscdsstevetivss pastedis cri gege dE EE dereen EUREN 124 INITlate COhNMeas A 117 el Ee eur TMU EE 118 INiTiate SEQuencer ABORU EE 119 INITiate SEQuencer IMMediate sireisas asna adasia aa EEN AAAA A EADAE REE dE 119 INITiate SEQuencer MODE ve INITiatel IMMedatel AAA NEO D trletl edel 87 INPULAT Fenlation AUTO sisihina santas devia dE EEN de 88 INPutATTenuation PROTection RESet A 85 INPUE GOW PING ME 85 INPut EATT x INPUCEATT AUTO E 89 Jl Stgd A8 ECKE 89 INPUt FILTErPHPASS S TAT NC 85 INPUGFILTERYIGESTA KEE 85 INPUEGAINS RE 89 INPut GAIN VALue INS Trument TV E Lu 83 INSTrument SELECt isinisisi dard i pa apa aaepe aai ada iana RA iA 83 LAvoutADDIWINDowl tatt tntE Ea EAEEANEEE
66. E i sissiiegeveatds sented E EER a a a 99 TRIGger SEQuence SOURCE rioei scatter ANNERES TEA Eaa Kna aaan eaaa 99 TRIGger SEQuence DTIMe lt DropoutTime gt Defines the time the input signal must stay below the trigger level before a trigger is detected again Parameters lt DropoutTime gt Dropout time of the trigger Range O0sto10 0s RST Os Manual operation See Trigger Source on page 39 See Drop Out Time on page 41 TRIGger SEQuence HOLDoff TIME lt Offset gt Defines the time offset between the trigger event and the start of the sweep data cap turing Parameters lt Offset gt RST Os Example TRIG HOLD 500us Manual operation See Trigger Source on page 39 See Trigger Offset on page 41 TRIGger SEQuence IFPower HOLDoff lt Period gt This command defines the holding time before the next trigger event Note that this command is available for any trigger source not just IF Power User Manual 1173 9405 02 07 96 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Deeg Parameters lt Period gt Example Manual operation Configuring Multi Carrier Group Delay Measurements RST 150 ns TRIG SOUR IFP Sets the IF power trigger source TRIG IFP HOLD 200 ns Sets the holding time to 200 ns See Trigger Source on page 39 See Trigger Holdoff on page 41 TRIGger SEQuence IFPower HYSTeresis lt Hysteresis gt This command defines the
67. EM Analog Demod IQ IQ Analyzer SANALYZER Spectrum Usage Query only Table 11 1 Available measurement channel types and default channel names Application lt ChannelType gt Parameter Default Channel Name Spectrum SANALYZER Spectrum UO Analyzer IQ IQ Analyzer Pulse R amp S FSW K6 PULSE Pulse Analog Demodulation ADEM Analog Demod R amp S FSW K7 GSM R amp S FSW K10 GSM GSM Multi Carrier Group Delay MCGD MC Group Delay R amp S FSW K17 Noise R amp S FSW K30 NOISE Noise Note the default channel name is also listed in the table If the specified name for a new channel already exists the default name extended by a sequential number is used for the new channel User Manual 1173 9405 02 07 82 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Deeg Activating Multi Carrier Group Delay Measurements Application lt ChannelType gt Parameter Default Channel Name Phase Noise R amp S FSW PNOISE Phase Noise K40 VSA R amp S FSW K70 DDEM VSA 3GPP FDD BTS BWCD 3G FDD BTS R amp S FSW K72 3GPP FDD UE R amp S FSW MWCD 3G FDD UE K73 TD SCDMA BTS BTDS TD SCDMA BTS R amp S FSW K76 TD SCDMA UE R amp S FSW MTDS TD SCDMA UE K77 cdma2000 BTS R amp S FSW BC2K CDMA2000 BTS K82 cdma2000 MS R amp S FSW MC2K CDMA2000 MS K83 1xEV DO BTS R amp S FSW BDO 1xEV DO
68. Ef Save icon in the toolbar b Select the Export softkey c If necessary change the decimal separator to be used for the export file d Select the Store Measurement Data softkey e Define a file name and storage location for the results file 19 To make use of the advanced analysis functions in the displays select the Analy sis button in the Overview e Configure a trace to display the average over a series of sweeps on the Trace tab if necessary increase the Sweep Count in the Multi Carrier Con fig settings This is recommended for absolute group delay trace results e Configure markers and delta markers to determine deviations and offsets within the signal on the Marker tab 20 Optionally export the trace data of the demodulated signal to a file a Inthe Traces tab of the Analysis dialog box switch to the Trace Export tab b Select Export Trace to ASCII File c Define a file name and storage location and select OK User Manual 1173 9405 02 07 72 R amp S FSW K17 Optimizing and Troubleshooting the Measurement 10 Optimizing and Troubleshooting the Mea surement If the results do not meet your expectations try the following methods to optimize the measurement Calibration fails e Check the connection from the signal generator to the R amp S FSW e Check the settings on the signal generator e Check the input signal at the R amp S FSW No trace visible in Magnitude R
69. Eugene e SENSe FREQU ncy GEN Ter STEP ere Eed Eder Eaa 94 IGENGe IEbREOuencv CENTer STER AUTO 94 IENGeFbREOuencv CENTer STEP UNK 95 IGENGe IEbREOuencv CENTer STEP UNK FACTor 95 SENSe FREQuU nCYy OF FSetis ices ccedeic ie errereen degt ege dante iene 95 EIST Tee DE 104 SENSe MTIMe AUTO SENSE ME 104 EISEM AR 105 EISE ENKE 105 SENSe SWEep ee EE 121 SENSe SWEep GOUNE CURRGNt is de dEdeEEEEEEEEER Seed ya eiatedd aaaea vedade deiin aE 122 SSS User Manual 1173 9405 02 07 155 R amp S FSW K17 Index A Center MEQUENCY euch vais deeds doen SEEEEAEEKEENEdA ENEE ee 37 44 RITTER 11 Aborting ed 37 44 SWEEP eege Edge 48 49 SICO SIZE enke det nid etd diesen 37 Absolute group delay cc eeeeceeeeeeeeeneeeeeeneees 21 46 Continue single sweep AC DC COUPIING EE 28 SOMKCY nosia aeai e a a 49 Activating Continuous sweep MC Group Delay application remote 005 80 SOMKEY dienian dapat Ee Eege 48 Amplitude Conventions Configuration softkey 0 0 eee ceeeeeeeneeeeeeeees 29 SCPIiCOMMANAS erger eed 76 Scaling WEE 34 Copying e E 29 Measurement channel remote 0 cece 81 Settings remote ccecscceseceensceneeserenseseeeneneenenees 87 Coupling Amplitude flatness INPUE PEMOTE 0 Leesgeeg egirgege geed genge 85 SOS GAIN E 20 Crest factor Analysis Input signal saninin rig beasties 23 EU TE 54 CSV Application Fil Gel EE 149 Multi Ca
70. I 145 SENS ADEMOd RLENGIN eseu geed dE dee EE dE cineca dE need 146 SENSe ADEMod SPECtrum PHASe RESult SENSe JADEMod SPECtrum PHASe TE SENSe ADEMod SPECtrum SPAN j sis cascdscevetiei cet neni nieve viii aten E a TE EEATT IEN Ge IADE Mod GbPECirum SPAN Z0OOM at IEN Ge IADE Mod GbECirum GPANTMANimum 145 IEN Ge IADE Mod GbPECiromf MACNtudel REGORN 145 LEE User Manual 1173 9405 02 07 154 R amp S FSW K17 List of Remote Commands MC Group Delay SENSe ADEMod SPECtrum MAGNitude TPE 145 EISES KEE 146 SENS ADEMod STAT e irrisa ack ab det edd 146 SENSe ADJ st CON Figure DURAN AE 106 IGENZGe IAD Just COhNFoure DUPRaton MODE cece cece eceeeeeeeseeeeeeeseaeeseeeesseeseeeseeeeseeseaeeseaees 106 SENSe ADJust CONFigure HYS Teresiel Oe 107 IGENGe IWAD JustCCOhNFioureHvGTeresis Uber 107 SENSe JADJUSELE VG ccs tccce avinpdepeeedes RE eege Eeer eegen 108 SENSEJAVER AGE ere El LE 129 SENSe JAVERage lt n gt TYPE ccceescceceesceeeeeseceeeeaeceeeeaeeeesaeeeaesaeeeaecaeeeaesanesaecaeesaesaeeeaeseeeaeeeeeaeeeeeeaeeeeeeas 130 EISE EE NEE 130 SENSe BANDWidth DEMOd KEE 103 SENS BWIDH DEMOI steers siedend aaa eile nines den iaa eiaeaen 103 IEN Ge ICAbRb ier COUN itkut tnt EutEntAAEAEEANENEAEANEAEENEENEEREEEENEEAEEAEAEEAE EEEn EEn EAEn Eanna 103 SENSe CARRi r OFF Set MOD Bs nnii nadia gaya a a a EEEE ATAA 105 SENSe CARRier OFFSet EISE e Oe ene DEE ISENS FREQUGNHCY CENTE
71. I VE aena nasan ia Aa iavasdd deleat aTS WEE Markers remote ste Retrieving remote cccceeeeeeceeteeeeteeteeeteeneeeees STOMO Seczeeveariltedectervssvesveateessiectindaadncnn teil Traces exporting remote HR e EE RF attenuation AlitO SOTKGY 2 4 secitetecsstisentuetenetident d e Manual Softkey oscinina PRE UUNPUE sggpe eg gege cots Adsgecstesenieetidsieas tenes Overload protection remote REMOTE riiai diaais ti idii iaer RF Power Hl A0 Trigger level remote cccscceeeceeeeeeseteeeeeeeneeeees 98 RUN CONT KOY anran EEEE EAE ees dace 48 RUN SINGLE S Scaling Configuration Softkey eseeeeeeeeeeenereerrerieernereens 32 Settings MEMOS E 90 EE 34 35 Y axis remote control eee eee cece eeeeeeeeneeeeeees 93 Search Configuration softkey ccceccseeeeeeeeeseeeeees 63 Select Marker le E WEE Aborting remote ccccsececeeceeeeeeeteeeteeeeeteeeaee Activating remote Mode remote A ue EE Signal generator e Measurement Setup cccccceeceeeeteeeeeeeeeeeeeeeneaeee 22 Signal source Ee 86 Single sweep Ee 48 SINGIG ZOOM EE 66 Slope div be GE 42 99 Softkeys Amplitude Config ccccceeeeceeeeeeeeeeeeeenneeeeeeeees Auto LOVE seriinin seiis iiai Calibrate ze Cartier Spacing deck aedereeteieredeeu i EES ENKEN CENTET fesse caccvatessscesssesisiccas becuse count ees d acesevssssstevoezes Continue Single Sweep i Conti
72. JADEMod SPECtrum SPAN ZOOM lt Value gt This command sets the span EE User Manual 1173 9405 02 07 144 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Deg Commands for Compatibility Note that this command is maintained for compatibility reasons only Use SENSe FREQuency SPAN on page 104 for new remote control programs Parameters lt Value gt Default unit HZ SENSe JADEMod SPECtrum SPAN MAXimum lt Value gt This command sets the span Note that this command is maintained for compatibility reasons only Use SENSe FREQuency SPAN on page 104 for new remote control programs Parameters lt Value gt Default unit HZ SENSe JADEMod SPECtrum MAGNitude RESult lt WindowType gt This command returns the trace data of the first trace of the given type within the mag nitude window Note that this command is maintained for compatibility reasons only Use TRACe lt n gt DATA on page 125 for new remote control programs Query parameters lt WindowType gt WRITe AVERage MINHold MAXHold Usage Query only SENSe JADEMod SPECtrum MAGNitude TYPE lt Trace1 gt lt Trace2 gt lt Trace3 gt This command sets the modes of the first three traces of magnitude windows Note that this command is maintained for compatibility reasons only Use DISPlay WINDow lt n gt TRACe lt t gt MODE on page 128 for new remote control programs Paramet
73. NEASEEEEEEAEEEEEEES EEEE EA EEEE EnEn E nennen 111 I User Manual 1173 9405 02 07 153 R amp S FSW K17 List of Remote Commands MC Group Delay LAY out CA aloof WINDOW cc sacitsescccvssscesssusessnsssesecadaectasssustiavsntczasvussantessssyueensssdsbassysnscwistecuthatshanetdaeeuteante 112 ILA YoOUit IDE NERY Ee 112 LAyoutREMovefWINDow 113 LAyoutREPL acefWINDowl 113 Ey crc oo oc ee ee ee E ee eS eee 113 EANAN DND DA 115 LAYO WINDOW lt p gt RTE LEE 115 LAYOUEWINDOWSN gt E 115 LAYout lee EE EE 116 MMEMorv LOAD MCGD RCAL braton utka EAtENEANEENEEEEEEREANEAEE EEEE E nennen nenene at 109 MMEMory STOR6 MCGD MEAS ncira re ei aaaea aE E a aaa e irana 124 MMEMorv STObe MCGD RCAL braton katts tAs EANA AENEEEEAEEA Ea tAntnnEnnnnannaent ratent 109 MMEM ry STORe lt A gt TRACE A eaedeegeea eegen KSE dE deed 126 OUTPUETRIGGersport DIRCCHOMN wesc ncuedcevses cinadan napiren iienaa aine ann tandia cuaseedontsnesrdehnensunenseesvasieavarededeea ates 100 OUTPut Nee enen BT EE OUTPut TRIGger lt port gt OTYPe OUTburTRlGoerzportz PU GelMMedate 102 OUTbutCTRlGoer zportz PUL SelENGu ee ceceeceeeeeeeeeeeeereeeeseeeeaeeaeesaeeaeeeeeseeeaecaeseeesaeseesaesreeaeeareeeeateees 102 EAR e e Eer TEE 84 SY SMEM SE QUCNCE EE 120 TIRAGe lt n DATAEX 2 enisinia diens eee pe arated aioe deia dadada pap Yi diene 125 TRACecnsl DATA 125 TRIG ger SEQuence D TIME ciiscces sscenscevssescasccccccessaeavscevancesoctavasiesstexeatcs
74. NEREEEEREEENEREESEEREENER EES NEEeEEE 5 1 2 Documentation Overview cccccccecseeenceeeesseeenseeeeeseeeeseeeseeseeeseeseeseceeseeeseeseensaeeeeeseees 6 1 3 Conventions Used in the Documentation cccccceeeeseeeeeeeeeeeseeeeeseeeeeeeeeeeeeeeeeeeeeeees 7 2 Welcome to the Multi Carrier Group Delay Application 9 2 1 Starting the Multi Carrier Group Delay Application c seeeeeeeeeeeeeeeeeeeeeeees 9 2 2 Understanding the Display Information cccseeeceeseeseeeeeeeeeseeeeeeeeeeeeeeeseeeneeseeneees 10 3 About the Measurement ccccssceseesssssseeeeeeeseeeeeeeeeeeeeeeseeeeeeeeeeees 13 4 Measurements and Result Display ccceeeeeeeeeneeeeeeeeeeeeeeeeeeeeeeeeees 15 4 41 Evaluation Methods for Multi Carrier Group Delay ccccsesseeerseeseeseenseeeeeseeeeens 15 5 Measurement BaSics ccccccccccccceeeeeeeeeeeceeceeeeeeeeeeeeeeeesseessseeseeseseeeees 20 S1 IDOTIMIGIONS sos EE EES 20 5 2 The Multi Carrier MeaSureme nt ccccccceesesseceeeeeeeeeeeeeeeeeeeseeeeeeeeeeeeeeeeseeeeeeeeeneeeeeeeeees 20 5 3 The Calibration Reference MeaSurement ccceccseeeeeeeeeeeeeeeeeeeeeeeeseeeeeeeeeneeeeeeneees 22 5 4 MEAaSUrEMONt StU DE 22 6 Configuration ennenen ia aaa daraan enea aia aiaia aoinean anaa 24 6 1 Default Settings for Multi Carrier Group Delay measurements ccseeeeeees 24 6 2 Configuration OvervieW sssssssssssusnunrnnunnnnnnnnnnnnnnunnnn
75. OFF Example CALC MARK4 LINK TO MARK2 ON Links marker 4 to marker 2 Manual operation See Linking to Another Marker on page 61 CALCulate lt n gt MARKer lt m gt STATe lt State gt This command turns markers on and off If the corresponding marker number is currently active as a deltamarker it is turned into a normal marker Parameters lt State gt ON OFF RST OFF Example CALC MARK3 ON Switches on marker 3 Manual operation See Marker State on page 60 See Marker Type on page 60 T User Manual 1173 9405 02 07 133 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 9 3 Analyzing Multi Carrier Group Delay Measurements CALCulate lt n gt MARKer lt m gt TRACe lt Trace gt This command selects the trace the marker is positioned on Note that the corresponding trace must have a trace mode other than Blank If necessary the command activates the marker first Parameters lt Trace gt Example CALC MARK3 TRAC 2 Assigns marker 3 to trace 2 Manual operation See Assigning the Marker to a Trace on page 61 CALCulate lt n gt MARKer lt m gt X lt Position gt This command moves a marker to a particular coordinate on the x axis If necessary the command activates the marker If the marker has been used as a delta marker the command turns it into a normal marker Parameters lt Position gt Numeric value that defines the marker position on the x axi
76. PEAKRT nne nnt 137 CALCulate lt n gt MARKer lt m gt TRACe ie CAL een E 134 CAL Culate cnz MAbRkercmscy tatit tatin tnnt tnnt tEEAAEEEEEAEEEEENEEENESEEENEEEEESEEEEESE EEEE SEE ENESE EEEE EEEa 123 CALC latesn gt MARKer lt m gt STATE aei sirih iriri aani rinia eiaa aa a eaka ra Ea niiae 133 CAL IB ration MC ER 108 CALibration MCGD S TATE anru aa daaa R E Ara ei paar ei aelean dina eee 108 DIAGnostic SERVice NSOurce 105 DISPlay OR EE 110 TRUE GIE d WRC 134 DISPlay WINDOWSA gt SIZE ni aene daat veceusiadavdeelateved vaste aea dapi dap Ea tE ap ada ea EEA TAERE 110 DlSblavf WiNDow nzTR ACev GbACimg eneen 93 DiSblavfWiNDow nz TRACevlGCAlel nsten rtnn nn nannan nenn 90 E N User Manual 1173 9405 02 07 152 R amp S FSW K17 List of Remote Commands MC Group Delay DISPlay WINDow lt n gt TRACe Y SCALe MAXIMUM 0 ccceceeececeeeeeeeeeeceeeeeceeeesaeecaeeecaeeeeaeeseeeessaeeeeaeeeees 90 DlSblavf WiNDow nzTRACevtGCALelMihNimum ennen 91 DISPlay WINDow lt n gt TRACe Y SCALe MODE cccccceeceeeeeeeeeeeeeeeeseaeeeeaeeeeaeeeeaeeeeeeeseseeecaeeseeeeeeeeeeeenee 91 DlSblavf WiNDow nzTRACevtGCALelbt lvision enema 92 DlSblavf WiNDow nzTRACexvtGCALeRLEVel nennen nnn 87 DlSblavf WiNDow nzTR ACevtGCALelbREVelOttzet ennen 87 DlSblavf WiNDow nzTR ACevtGCALelbbOGion ennea 92 DISPlay WINDow lt n gt TRACe Y SCALe RVALUC anene ea 92 DlSblavf WiNDow nzTR ACectLENGn naene n na 124 DlSblavf WiN
77. QUES POW status register and the INPUT OVLD message in the status bar are cleared For details on the status register see the R amp S FSW User Manual The command works only if the overload condition has been eliminated first Usage Event INPut COUPling lt CouplingType gt This command selects the coupling type of the RF input Parameters lt CouplingType gt AC AC coupling DC DC coupling RST AC Example INP COUP DC Usage SCPI confirmed Manual operation See Input Coupling on page 28 INPut FILTer HPASs STATe lt State gt Activates an additional internal high pass filter for RF input signals from 1 GHz to 3 GHz This filter is used to remove the harmonics of the R amp S FSW in order to measure the harmonics for a DUT for example This function requires option R amp S FSW B13 Note for RF input signals outside the specified range the high pass filter has no effect For signals with a frequency of approximately 4 GHz upwards the harmonics are sup pressed sufficiently by the YIG filter Parameters lt State gt ON OFF RST OFF Usage SCPI confirmed Manual operation See High Pass Filter 1 3 GHz on page 28 INPut FILTer YIG STATe lt State gt This command turns the YIG preselector on and off EEE re User Manual 1173 9405 02 07 85 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 4 2 Configuring Multi Carrier Group Delay Measurements
78. R amp S FSW K17 Multi Carrier Group Delay Measurement User Manual 1173 9405 02 07 ROHDE amp SCHWARZ Test amp Measurement User Manual This manual applies to the following R amp S FSW models with firmware version 1 70 and higher e R amp S FSW8 1312 8000K08 e R amp S FSW13 1312 8000K13 e R amp S FSW26 1312 8000K26 R amp S FSW43 1312 8000K43 e R amp S FSW50 1312 8000K50 The following firmware options are described es R amp S FSW K17 1313 4150 02 The firmware of the instrument makes use of several valuable open source software packages For information see the Open Source Acknowledgement on the user documentation CD ROM included in delivery Rohde amp Schwarz would like to thank the open source community for their valuable contribution to embedded computing 2013 Rohde amp Schwarz GmbH amp Co KG Muhldorfstr 15 81671 Munchen Germany Phone 49 89 41 29 0 Fax 49 89 41 29 12 164 E mail info rohde schwarz com Internet www rohde schwarz com Printed in Germany Subject to change Data without tolerance limits is not binding R amp S is a registered trademark of Rohde amp Schwarz GmbH amp Co KG Trade names are trademarks of the owners The following abbreviations are used throughout this manual R amp S FSW is abbreviated as R amp S FSW R amp S FSW K17 Contents Contents TE 5 1 1 About this Manual eEREKSEEREEEREENEEEEEEREEESEEREEERNRESEEREEE
79. RST 0 dBm coupled to reference level Example DISP TRAC Y RVAL 20dBm Sets the power value assigned to the reference position to 20 dBm Manual operation See Configuring a Reference Point and Divisions on page 34 See Y Axis Reference Value on page 34 LEE User Manual 1173 9405 02 07 92 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 4 3 Configuring Multi Carrier Group Delay Measurements DISPlay WINDow lt n gt TRACe Y SPACing lt ScalingType gt This command selects the scaling of the y axis Parameters lt ScalingType gt LOGarithmic Logarithmic scaling LiNear Linear scaling in LDB Linear scaling in the specified unit PERCent Linear scaling in RST LOGarithmic Example DISP TRAC Y SPAC LIN Selects linear scaling in Usage SCPI confirmed Manual operation See Defining a Range and the Reference Level Position on page 34 See Scaling on page 34 UNIT ANGLe lt Unit gt This command selects the unit for angles for phase display Parameters lt Unit gt DEG RAD RST DEG Example UNIT ANGL DEG Manual operation See Phase Unit Rad Deg on page 36 Frequency SENSeqFREQUCHCy CENT EE 93 SENSe PREQUENGCYICENT ORS TEP i ERNEagNeeNEEERe case ns ydesaccens ceenaebdsaseeedcgnateecdeeenns 94 IENSelFREOuenc CENTer STEP AUTO 94 SENSe FREQuency CENTerSTEPICINK ue EE EEN istdeeee a aAa 95 SENSe FREQuency CENTer STEP LINK FACTOV
80. SSS SEE EE Se Input Source Settings Input Coupling The RF input of the R amp S FSW can be coupled by alternating current AC or direct current DC AC coupling blocks any DC voltage from the input signal This is the default setting to prevent damage to the instrument Very low frequencies in the input signal may be dis torted However some specifications require DC coupling In this case you must protect the instrument from damaging DC input voltages manually For details refer to the data sheet Remote command INPut COUPling on page 85 Impedance The reference impedance for the measured levels of the R amp S FSW can be set to 50 Q or75Q 75 Q should be selected if the 50 O input impedance is transformed to a higher impedance using a 75 Q adapter of the RAZ type 25 Q in series to the input impedance of the instrument The correction value in this case is 1 76 dB 10 log 750 500 Remote command INPut IMPedance on page 86 High Pass Filter 1 3 GHz Activates an additional internal high pass filter for RF input signals from 1 GHz to 3 GHz This filter is used to remove the harmonics of the R amp S FSW in order to measure the harmonics for a DUT for example This function requires option R amp S FSW B13 Note for RF input signals outside the specified range the high pass filter has no effect For signals with a frequency of approximately 4 GHz upwards the harmonics are sup pressed sufficiently by the YIG filte
81. activates the marker in the diagram Remote command CALCulate lt n gt MARKer lt m gt STATe on page 133 CALCulate lt n gt DELTamarker lt m gt STATe on page 132 Marker Position X value Defines the position x value of the marker in the diagram Remote command CALCulate lt n gt MARKer lt m gt X on page 134 CALCulate lt n gt DELTamarker lt m gt X on page 132 Marker Type Toggles the marker type The type for marker 1 is always Normal the type for delta marker 1 is always Delta These types cannot be changed Note If normal marker 1 is the active marker switching the Mkr Type activates an additional delta marker 1 For any other marker switching the marker type does not acti vate an additional marker it only switches the type of the selected marker Normal A normal marker indicates the absolute value at the defined position in the diagram EES User Manual 1173 9405 02 07 60 R amp S FSW K17 Analysis BREET Markers Delta A delta marker defines the value of the marker relative to the specified reference marker marker 1 by default Remote command CALCulate lt n gt MARKer lt m gt STATe on page 133 CALCulate lt n gt DELTamarker lt m gt STATe on page 132 Reference Marker Defines a marker as the reference marker which is used to determine relative analysis results delta marker values Remote command CALCulate lt n gt DELTamarker lt m gt MREF on page 132
82. age 67 11 9 5 2 Using the Multiple Zoom DISPlay WINDow lt n gt ZOOM MULTiple lt zoom gt AREA eseeeeeeeeeeeeeeeeeeeeaeeeeaeaeneneeeees 140 DiSblavlfWiNDow nztZOOM ML Tiple zo0omz GTATe 141 DISPlay WINDow lt n gt ZOOM MULTiple lt zoom gt AREA lt x1 gt lt y1 gt lt x2 gt lt y2 gt This command defines the zoom area for a multiple zoom To define a zoom area you first have to turn the zoom on LEE User Manual 1173 9405 02 07 140 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Commands for Compatibility 1 Frequency Sweep iRm e 1 origin of coordinate system x1 0 y1 0 2 end point of system x2 100 y2 100 3 zoom area e g x1 60 y1 30 x2 80 y2 75 Suffix lt zoom gt 1 4 Selects the zoom window Parameters lt x1 gt lt y1 gt Diagram coordinates in of the complete diagram that define the lt x2 gt lt y2 gt zoom area The lower left corner is the origin of coordinate system The upper right corner is the end point of the system Range O to 100 Default unit PCT Manual operation See Multiple Zoom on page 66 DISPlay WINDow lt n gt ZOOM MULTiple lt zoom gt STATe lt State gt This command turns the mutliple zoom on and off Suffix lt zoom gt 1 4 Selects the zoom window If you turn off one of the zoom windows all subsequent zoom win dows move up one position Parameters lt State gt ON
83. al fed into the specified input connector on the front or rear panel meets or exceeds the specified trigger level See Trigger Level on page 41 Note The External Trigger 1 softkey automatically selects the trigger signal from the TRIGGER INPUT connector on the front panel For details see the Instrument Tour chapter in the R amp S FSW Getting Started manual External Trigger 1 Trigger signal from the TRIGGER INPUT connector on the front panel External Trigger 2 Trigger signal from the TRIGGER INPUT OUTPUT connector on the front panel Note Connector must be configured for Input in the Outputs con figuration see Trigger 2 3 on page 42 EE User Manual 1173 9405 02 07 39 R amp S FSW K17 Configuration BEE Trigger Settings External Trigger 3 Trigger signal from the TRIGGER 3 INPUT OUTPUT connector on the rear panel Note Connector must be configured for Input in the Outputs con figuration see Trigger 2 3 on page 42 Remote command TRIG SOUR EXT TRIG SOUR EXT2 TRIG SOUR EXT3 See TRIGger SEQuence SOURce on page 99 IF Power Trigger Source Trigger Source The R amp S FSW starts capturing data as soon as the trigger threshold is exceeded around the third intermediate frequency For frequency sweeps the third IF represents the start frequency The trigger bandwidth at the third IF depends on the RBW and sweep type For measurements on a fixed frequency e g
84. allowed range of values for the center frequency depends on the frequency span fmax and span are specified in the data sheet Remote command SENSe FREQuency CENTer on page 93 User Manual 1173 9405 02 07 44 R amp S FSW K17 Configuration REESEN Multi Carrier Configuration Span Defines the frequency span to be measured Only a multiple of the carrier spacing can be defined The Number of Carriers is adapted accordingly see Span on page 20 Remote command SENSe FREQuency SPAN on page 104 Number of Carriers Defines the number of carriers in the signal The Span on page 37 and Carrier Spac ing are adapted according to the following formula Number of carriers 1 Span Carrier spacing Note When loading calibration data the number of carriers in the stored data must cor respond to the currently defined number of carriers for the measurement otherwise load ing fails For details see Span on page 20 Remote command SENSe CARRier COUNt on page 103 Carrier Spacing Defines the spacing between two carriers The Span on page 37 and the Number of Carriers are adapted accordingly see Span on page 20 Remote command SENSe CARRier SPACing on page 103 Measurement Time Defines the duration of the measurement Auto Default In automatic mode the required time is determined according to carrier spacing and span the currently used measurement time is i
85. anasnccatdcnnaessasedaneesdtadecetesenaedadaae 133 CAL Culate nz M Abkerm1z LINK TOMAbkercm z 133 CALCulatesa gt MARKersi RR EE 133 CALCulatesn MARKers m gt TRACE ssaa a ENEE 134 CAL Gulatesn MARKES M gt Xir canina iian aiiai a a ai aiaa iaia E iaai aai 134 User Manual 1173 9405 02 07 130 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements h_e Analyzing Multi Carrier Group Delay Measurements CALCulate lt n gt DELTamarker AOFF This command turns all delta markers off Example CALC DELT AOFF Turns all delta markers off Usage Event CALCulate lt n gt DELTamarker lt m gt LINK lt State gt This command links delta marker lt m gt to marker 1 If you change the horizontal position x value of marker 1 delta marker lt m gt changes its horizontal position to the same value Parameters lt State gt ON OFF RST OFF Example CALC DELT2 LINK ON Manual operation See Linking to Another Marker on page 61 CALCulate lt n gt DELTamarker lt m1 gt LINK TO MARKer lt m2 gt lt State gt This command links delta marker lt m1 gt to any active normal marker lt m2 gt If you change the horizontal position of marker lt m2 gt delta marker lt m1 gt changes its horizontal position to the same value Parameters lt State gt ON OFF RST OFF Example CALC DELT4 LINK TO MARK2 ON Links the delta marker 4 to the marker 2 Manual operation See Linking to A
86. and moves a delta marker to the next higher value The search includes only measurement values to the right of the current marker position Usage Event eee User Manual 1173 9405 02 07 138 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements h_a SS eee Analyzing Multi Carrier Group Delay Measurements Manual operation See Search Mode for Next Peak on page 63 CALCulate lt n gt DELTamarker lt m gt MINimum LEFT This command moves a delta marker to the next higher minimum value The search includes only measurement values to the right of the current marker position Usage Event Manual operation See Search Mode for Next Peak on page 63 CALCulate lt n gt DELTamarker lt m gt MINimum NEXT This command moves a marker to the next higher minimum value Usage Event Manual operation See Search Mode for Next Peak on page 63 See Search Next Minimum on page 65 CALCulate lt n gt DELTamarker lt m gt MINimum PEAK This command moves a delta marker to the minimum level If the marker is not yet active the command first activates the marker Usage Event Manual operation See Search Minimum on page 65 CALCulate lt n gt DELTamarker lt m gt MINimum RIGHt This command moves a delta marker to the next higher minimum value The search includes only measurement values to the right of the current marker position Usage Event Manual operation See Search Mode for Next Peak on page 63
87. and then evaluated They are configured via the SWEEP key Continuous Sweep RUN CONT cccccccsssssscececcsssscsreceeesscecereeesessscureeesesssscreseesssensaees 48 le RUN SINGLE EE 48 Continue Single SWCD EE 49 SWEEP COUN EE 49 Continuous Sweep RUN CONT While the measurement is running the Continuous Sweep softkey and the RUN CONT key are highlighted The running measurement can be aborted by selecting the highlighted softkey or key again The results are not deleted until a new measurement is started Note Sequencer If the Sequencer is active the Continuous Sweep softkey only con trols the sweep mode for the currently selected channel however the sweep mode only has an effect the next time the Sequencer activates that channel and only for a channel defined sequence In this case a channel in continuous sweep mode is swept repeatedly Furthermore the RUN CONT key on the front panel controls the Sequencer not individ ual sweeps RUN CONT starts the Sequencer in continuous mode Remote command INITiate CONTinuous on page 118 Single Sweep RUN SINGLE While the measurement is running the Single Sweep softkey and the RUN SINGLE key are highlighted The running measurement can be aborted by selecting the highligh ted softkey or key again Note Sequencer If the Sequencer is active the Single Sweep softkey only controls the sweep mode for the currently selected channel however the sweep mode only has E Us
88. ands to Perform Multi Carrier Group Delay Measurements bX EEE eee eae Retrieving Results MMEMory STORe lt n gt TRACe lt Trace gt lt FileName gt This command exports trace data from the specified window to an ASCII file For details on the file format see chapter 12 2 Reference ASCII File Export Format on page 147 Parameters lt Trace gt Number of the trace to be stored This parameter is ignored if the option Export all Traces and all Table Results is activated in the Export configuration settings see FORMat DEXPort TRACes on page 127 lt FileName gt String containing the path and name of the target file Example MMEM STOR1 TRAC 3 TEST ASC Stores trace 3 from window 1 in the file TEST ASC Usage SCPI confirmed Manual operation See Export Trace to ASCII File on page 58 FORMat DEXPort DSEParator lt Separator gt This command selects the decimal separator for data exported in ASCII format Parameters lt Separator gt COMMa Uses a comma as decimal separator e g 4 05 POINt Uses a point as decimal separator e g 4 05 RST RST has no effect on the decimal separator Default is POINt Example FORM DEXP DSEP POIN Sets the decimal point as separator Manual operation See Decimal Separator on page 48 FORMat DEXPort HEADer lt State gt If enabled additional instrument and measurement settings are included in the header of the export file for result data If
89. anual Input The signal at the connector is used as an external trigger source by the R amp S FSW No further trigger parameters are available for the connec tor User Manual 1173 9405 02 07 50 R amp S FSW K17 Configuration ge Automatic Settings Output The R amp S FSW sends a trigger signal to the output connector to be used by connected devices Further trigger parameters are available for the connector Remote command OUTPut TRIGger lt port gt LEVel on page 101 OUTPut TRIGger lt port gt DIRection on page 100 Output Type lt Trigger 2 3 Type of signal to be sent to the output Device Trig Default Sends a trigger when the R amp S FSW triggers gered Trigger Sends a high level trigger when the R amp S FSW is in Ready for trig Armed ger state This state is indicated by a status bit in the STATus OPERation reg ister bit 5 as well as by a low level signal at the AUX port pin 9 User Defined Sends a trigger when user selects Send Trigger button In this case further parameters are available for the output signal Remote command OUTPut TRIGger lt port gt OTYPe on page 101 Level Output Type lt Trigger 2 3 Defines whether a constant high 1 or low 0 signal is sent to the output connector Remote command OUTPut TRIGger lt port gt LEVel on page 101 Pulse Length Output Type Trigger 2 3 Defines the length of the pulse sent as a trigger to the output co
90. at any RF attenuation or preamplification is considered when the trigger level is analyzed Parameters lt TriggerLevel gt Range 50 dBm to 20 dBm RST 20 dBm Example TRIG LEV IFP 30DBM Manual operation See Trigger Source on page 39 See Trigger Level on page 41 TRIGger SEQuence LEVel l QPower lt TriggerLevel gt This command defines the magnitude the I Q data must exceed to cause a trigger event Note that any RF attenuation or preamplification is considered when the trigger level is analyzed Parameters lt TriggerLevel gt Range 130 dBm to 30 dBm RST 20 dBm Example TRIG LEV Top 30DBM Manual operation See Trigger Source on page 39 See Trigger Level on page 41 TRIGger SEQuence LEVel RFPower lt TriggerLevel gt This command defines the power level the RF input must exceed to cause a trigger event Note that any RF attenuation or preamplification is considered when the trigger level is analyzed The input signal must be between 500 MHz and 8 GHz Parameters lt TriggerLevel gt Range 50 dBm to 10 dBm RST 20 dBm Example TRIG LEV RFP 30dBm TRIGger SEQuence RFPower HOLDoff lt Time gt This command defines the holding time before the next trigger event Note that this com mand is available for any trigger source not just RF Power Note that this command is maintained for compatibility reasons only Use the TRIGger SEQuence I1FPower HOLDoff on page 96 command
91. ay WINDow ZOOM STATe ON Query DISPlay WINDow ZOOM STATe would return 1 Character Data Character data follows the syntactic rules of keywords You can enter text using a short or a long form For more information see chapter 11 1 2 Long and Short Form on page 76 Querying text parameters When you query text parameters the system returns its short form Example Setting SENSe BANDwidth RESolution TYPE NORMal Query SENSe BANDwidth RESolution TYPE would return NORM LEE User Manual 1173 9405 02 07 79 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Common Suffixes 11 1 6 4 Character Strings Strings are alphanumeric characters They have to be in straight quotation marks You can use a single quotation mark or a double quotation mark Example INSTRument DELete Spectrum 11 1 6 5 Block Data Block data is a format which is suitable for the transmission of large amounts of data The ASCII character introduces the data block The next number indicates how many of the following digits describe the length of the data block In the example the 4 following digits indicate the length to be 5168 bytes The data bytes follow During the transmission of these data bytes all end or other control signs are ignored until all bytes are transmitted 0 specifies a data block of indefinite length The use of the indefinite format requires a NL
92. contains the measured data in two columns which are also separated by a semicolon Table 12 2 CSV file format for calibration data export File contents Description Header data Type R amp S FSW K17 Reference Calibration Type of data Version 1 40 Firmware version Date 20 Jan 2012 Date of data set storage Mode MCGD Channel type Center Freq 10000000 Hz Center frequency Freq Offset 0 Hz Frequency offset Span 10000000 Hz Frequency range E N User Manual 1173 9405 02 07 149 R amp S FSW K17 Annex Reference CSV File Export Format File contents Number of Carriers 51 Description Number of carriers Carrier Spacing 10000000 Hz Distance between two carriers Meas Time 0 00003128125 s Measurement time Sweep Count 0 Sweep count Trace type Amplitude Reference Calibration Data source and result display Magnitude Reference x Unit Hz Unit of x values y Unit V Unit of y values Data section Values 51 Number of measurement points 95000000 20 5 96000000 20 3 97000000 24 2 Measured values lt x value gt lt y value gt Table 12 3 CSV file format for measurement data export File contents Description Header data Type R amp S FSW Instrument model Version 1 30 Firmware version Date 20 Jan 2012 Date of data set storage Mode MCGD DB1 00 Channel type
93. d Status Messages Error messages are entered in the error event queue of the status reporting system in the remote control mode and can be queried with the command SySTem ERRor Warnings are not indicated in the status reporting system but are displayed in the status bar A short explanation of the warning messages for the R amp S FSW MCGD application is given below Table 10 1 Status messages for the R amp S FSW MCGD application Status bar message Description No calibration data The calibration measurement has not yet been performed nor have stored settings been loaded Measurement configuration not MCGD configuration contains a setting that is not compatible to the compatible to Calibration Data current calibration reference data Solution Repeat the calibration measurement without the DUT or change the measurement settings User Manual 1173 9405 02 07 74 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Introduction 11 Remote Commands to Perform Multi Carrier Group Delay Measurements The following commands are required to perform measurements in the Multi Carrier Group Delay application in a remote environment It is assumed that the R amp S FSW has already been set up for remote operation in a network as described in the R amp S FSW User Manual Note that basic tasks that are also performed in the base unit in the same way are not described here
94. database version Ref Level 0 Reference level Level offset 0 Reference level offset Rf Att 10 Input attenuation El AO Electronic attentuation Center Freq 10000000 Hz Freq Offset 0 Hz Center frequency Frequency offset Span 10000000 Hz Frequency range Number of Carriers 51 Number of carriers Carrier Spacing 10000000 Hz Distance between two carriers Meas Time 0 00003128125 s Measurement time Group Delay Absolute Value type for group delay Carrier Offset AUTO Auto mode for carrier offset Carrier Offset 0 Hz Carrier offset value Sweep Count 0 Number of sweeps set EE User Manual 1173 9405 02 07 150 R amp S FSW K17 Annex a a aa Reference CSV File Export Format File contents Description Preamplifier OFF Preamplifier status Number of windows Number of windows included in export Data section for individual window Window 1 Magnitude Name of first window result display Data section for individual trace Trace 1 First trace Trace Mode Clear Write Display mode of trace CLR WRITE AVERAGE MAX HOLD MINHOLD x Axis Linear Scaling of x axis linear LIN or logarithmic LOG Start 95000000 Hz Start stop value of the display range Stop 105000000 Hz x Unit Hz Unit of x values Hz with span gt 0 s with span 0 dBm dB with statistics measu
95. dicated in the status bar beneath the diagram Furthermore the progress of the current operation is displayed in the status bar User Manual 1173 9405 02 07 12 R amp S FSW K17 About the Measurement 3 About the Measurement Frequency delay in transmitted signals All frequency components of a signal are delayed when passed through a device such as an amplifier a loudspeaker or propagated through space or a medium such as air This signal delay will be different for the various frequencies unless the device has the property of being linear phase The delay variation means that signals consisting of mul tiple frequency components will suffer distortion because these components are not delayed by the same amount of time at the output of the device This changes the shape of the signal in addition to any constant delay which can result in a signal that no longer matches the receiver filter which in turn results in degraded Signal to Noise Ratio SNR or Bit Error Rate BER Group delay as a characterization of transmission components The delay of all frequencies together is referred to as the group delay and can be used to characterize the quality of transmission for such components Group delay is also a measure of how long it takes for a signal s information to propagate through a channel or device under test Since digital modulation schemes in which the frequency plays an important role are very common the group delay is of
96. e Marker dialog box ker Markers Marker Settings Search Settings Ref Marker 20 0 MHz D a Selected Stimulus Link to Marker Trace T a Marker 1 Delta 1 7 13 Delta 2 3 696 MHz 696 MHz Norm Norm ghg 3 317 MHz 3 317 MHz MHz SE Det ee Delta 3 Delta 4 S s KE Delta 6 All Marker Off S g The markers are distributed among 3 tabs for a better overview By default the first marker is defined as a normal marker whereas all others are defined as delta markers with reference to the first marker All markers are assigned to trace 1 but only the first marker is active SEA EE 59 Selaca E 60 kakor See a E Eden ee 60 Marker Position XVal eesin aiiai aiana AA 60 MaiKer Ke 60 Ehe ena E teenies 61 Linking to Another Warmer E 61 Assigning the Marker to a Trace s sseererininirrrrrrreiserirrnnniiidsnnansarrianaanadnnnnnnaadenannnaan 61 AMIKE EE 61 Select Marker Opens a dialog box to select and activate or deactivate one or more markers quickly User Manual 1173 9405 02 07 59 R amp S FSW K17 Analysis Markers Selected State Selected State Selected State Meee lo Con Kol oai Con Kos Remote command Marker selected via suffix lt m gt in remote commands Selected Marker Marker name The marker which is currently selected for editing is highlighted orange Remote command Marker selected via suffix lt m gt in remote commands Marker State Activates or de
97. e Commands MC Group Delay c cccsssssseeeeeeees 152 TL lt a ee en Ke ee Ee e Ka ee nee eee eee eee 156 User Manual 1173 9405 02 07 4 R amp S FSW K17 Preface About this Manual 1 Preface 1 1 About this Manual This Multi Carrier Group Delay User Manual provides all the information specific to the application All general instrument functions and settings common to all applications and operating modes are described in the main R amp S FSW User Manual The main focus in this manual is on the measurement results and the tasks required to obtain them The following topics are included Welcome to the Multi Carrier Group Delay Application Introduction to and getting familiar with the application About the measurement General concept of the MCGD measurement and typical applications Measurements and Result Displays Details on supported measurements and their result types Measurement Basics Background information on basic terms and principles in the context of the measure ment Configuration Analysis A concise description of all functions and settings available to configure measure ments and analyze results with their corresponding remote control command How to Perform Measurements in the Multi Carrier Group Delay Application Step by step instructions to perform a basic MCGD measurement Measurement Examples Detailed measurement examples to guide you through typical measurement scenar ios and allow you
98. e RF attenuation and the reference level are optimally adjusted to the signal level without overloading the R amp S FSW or limiting the dynamic range by an S N ratio that is too small Example ADJ LEV Usage Event Manual operation See Setting the Reference Level Automatically Auto Level on page 52 Measuring Loading and Storing Calibration Data The folowing commands are required to perform the calibration measurement and load and store the calibration data MIL WANING EE 108 CALibration MC ER EN NEE 108 MMEMory LOAD MCGD RCALIbIration isi eiiie aeia aind cy tasaceeesctsiasonenseeae 109 MMEMone Kal eene H e EE 109 CALibration MCGD This command initiates a new calibration You can synchronize to the end of the mea surement as usual with OPC OPC or WAI Example CAL MCGD WAI Performs a calibration measurement and waits for the results Usage Event Manual operation See Calibrate Execute Reference Calibration on page 47 CALibration MCGD STATe This command queries the calibration status of the Multi Carrier Group Delay application eee User Manual 1173 9405 02 07 108 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 6 11 6 1 Configuring the Result Display Return values lt State gt ON 1 Calibration has been performed reference data is available OFF 0 Calibration has not yet been performed or is currently running reference data is not
99. e corresponding trace must have a trace mode other than Blank If necessary the command activates the marker first Parameters lt Trace gt Trace number the marker is assigned to Example CALC DELT2 TRAC 2 Positions delta marker 2 on trace 2 CALCulate lt n gt DELTamarker lt m gt X lt Position gt This command moves a delta marker to a particular coordinate on the x axis If necessary the command activates the delta marker and positions a reference marker to the peak power EE User Manual 1173 9405 02 07 132 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements hX Analyzing Multi Carrier Group Delay Measurements Parameters lt Position gt Numeric value that defines the marker position on the x axis The unit is s Example CALC DELT X Outputs the absolute x value of delta marker 1 Manual operation See Marker Position X value on page 60 CALCulate lt n gt MARKer lt m gt AOFF This command turns all markers off Example CALC MARK AOFF Switches off all markers Usage Event Manual operation See All Markers Off on page 61 CALCulate lt n gt MARKer lt m1 gt LINK TO MARKer lt m2 gt lt State gt This command links normal marker lt m1 gt to any active normal marker lt m2 gt If you change the horizontal position of marker lt m2 gt marker lt m1 gt changes its horizontal position to the same value Parameters lt State gt ON OFF RST
100. e on page 99 IQ Power Trigger Source Trigger Source This trigger source is not available if the optional Digital Baseband Interface R amp S FSW B17 or Analog Baseband Interface R amp S FSW B771 is used for input LE User Manual 1173 9405 02 07 40 R amp S FSW K17 Configuration Trigger Settings Triggers the measurement when the magnitude of the sampled UO data exceeds the trigger threshold Remote command TRIG SOUR IQP see TRIGger SEQuence SOURce on page 99 Trigger Level Trigger Source Defines the trigger level for the specified trigger source For details on supported trigger levels see the data sheet Remote command TRIGger SEQuence LEVel IFPower on page 98 TRIGger SEQuence LEVel 1QPower on page 98 TRIGger SEQuence LEVel EXTernal lt port gt on page 97 Drop Out Time Trigger Source Defines the time the input signal must stay below the trigger level before triggering again Remote command TRIGger SEQuence DTIMe on page 96 Trigger Offset Trigger Source Defines the time offset between the trigger event and the start of the sweep offset gt 0 Start of the sweep is delayed offset lt 0 Sweep starts earlier pre trigger Remote command TRIGger SEQuence HOLDoff TIME on page 96 Hysteresis Trigger Source Defines the distance in dB to the trigger level that the trigger source must exceed before a tri
101. e simultane ously An overview window indicates the zoom areas in the original trace while the zoomed trace areas are displayed in individual windows The zoom area that corresponds to the individual zoom display is indicated in the lower right corner between the scrollbars Remote command DISPlay WINDow lt n gt Z00M MULTiple lt zoom gt STATe on page 141 DISPlay WINDow lt n gt Z00OM MULTiple lt zoom gt AREA on page 140 Restore Original Display Restores the original display and closes all zoom windows Remote command DISPlay WINDow lt n gt ZOOM STATe on page 140 single zoom DISPlay WINDow lt n gt ZOOM MULTiple lt zoom gt STATe on page 141 for each multiple zoom window Deactivating Zoom Selection mode Deactivates zoom mode tapping the screen no longer invokes a zoom but selects an object Remote command DISPlay WINDow lt n gt ZOOM STATe on page 140 single zoom DISPlay WINDow lt n gt ZOOM MULTiple lt zoom gt STATe on page 141 for each multiple zoom window LEE User Manual 1173 9405 02 07 67 R amp S FSW K17 Importing and Exporting Results Export Functions 8 Importing and Exporting Results The R amp S FSW provides various evaluation methods for the results of the performed measurements However you may want to evaluate the data with other external appli cations In this case you can export the measurement data to a standard format file ASCII or CSV The r
102. ed in the display Estimated The actual frequency is estimated from the measurement data and the offset from the reference signal is determined Possible values are in the range of Carrier spacing 2 to Carrier spacing 2 Fixed A fixed offset is used depending on the number of carriers Odd number offset 0 Even number ofset Carrier spacing 2 A fixed offset is useful for signals with very low levels as the frequency estimation may fail in this case Remote command SENSe CARRier OFFSet on page 104 SENSe CARRier OFFSet MODE on page 105 Calibration Calibration is performed in the Calibration tab of the Multi Carrier Config dialog box EE User Manual 1173 9405 02 07 46 R amp S FSW K17 Configuration Multi Carrier Configuration Meas Config Calibration Last Reference Calibration Center Frequency Frequency Offset Span Number of Carriers Carrier Spacing Meas Time Execute Reference Calibration Overwrites Current Reference Data Load Calibration Data Decimal Seperator The values defined by the most recently performed or loaded calibration measurement are displayed at the top of the dialog box Calibrate Execute Reference Cabratton 47 Stoning Calibration E ET 47 Loading Calibration Data EE 48 NEE WE 48 Calibrate Execute Reference Calibration Starts a new sweep to perform a calibration measurement The status of the running measurement is indicated in a dia
103. ee Storing Measurement Results on page 68 TRACe lt n gt DATA lt Trace gt This command queries current trace data and measurement results for the specified window For each of the measurement points number is determined by record length see SENSe RLENgth on page 105 the power level phase or group delay value is returned Query parameters lt Trace gt TRACE1 TRACE2 TRACE3 TRACE4 Defines the trace whose data is returned Example TRAC3 DATA TRACE1 Returns the measured values for trace 1 in window 3 Usage Query only TRACe lt n gt DATA X lt TraceNumber gt This command queries the horizontal trace data for each sweep point in the specified window for example the frequency in frequency domain or the time in time domain measurements This is especially useful for traces with non equidistant x values e g for SEM or Spurious Emissions measurements Query parameters lt TraceNumber gt Trace number TRACE TRACE4 Example TRAC3 X TRACE1 Returns the x values for trace 1 in window 3 Usage Query only 11 8 3 Exporting Trace Results Trace results can be exported to a file For more commands concerning data and results storage see the R amp S FSW User Man ual MMEMom STORES T EEN 126 PORMat DEX RR Ee EE 126 PORMBUDEMP OR HEADS en enee EEN EEN SEENEN Se 126 FORMAEDEX TEE 127 _LL_L L_L LL SS SSS SSS User Manual 1173 9405 02 07 125 R amp S FSW K17 Remote Comm
104. ee ae Maeva endpaper N A 32 TT 35 6 4 1 Amplitude Settings Amplitude settings determine how the R amp S FSW must process or display the expected input power levels To configure the amplitude settings Amplitude settings can be configured via the AMPT key or in the Amplitude dialog box gt To display the Amplitude dialog box do one of the following e Select Input Frontend from the Overview and then switch to the Amplitude tab e Select the AMPT key and then the Amplitude Config softkey E N User Manual 1173 9405 02 07 29 R amp S FSW K17 Configuration Amplitude and Y Axis Scaling Amplitude Reference Level Input Settings Value 0 0 dBm Preamplifier Offset 0 0 dB Input Coupling Unit I d Auto Level Toa Mechanical Attenuation Electronic Attenuation Mode Manual Kuto State Mode 10 0 dB Value Reference Level icnn ddan adancengdechdaet qvaeesdandsqaeeseessdspuaeeeteanen eeeeiegeecae 30 L Shifting the Display Offset 30 RFAAI e EEetede EES RR EEENR EE RER RRE AES ER EN L Attenuation Mode Value 31 Using Electronic Attenuation Option B25 iicdsiesenctiiiee steer NEEN 31 MPU SOROS EE 32 L Preamplifier Option B24 sicn aa 32 Reference Level Defines the expected maximum reference level Signal levels above this value may not be measured correctly which is indicated by the IF OVLD status display The reference level is also used to scale power diagrams the refere
105. eeeeeeeeseesanceeseeseeeeeses 137 CALCulate lt n gt MARKer lt m gt MINIMUM ILEFT 20ccccesccccesceceseseceeceseeescceeeseceeneeeceseceanees 137 CAL Culate nz M Abker mz MiNimumNENT 137 CALCulate lt n gt MARKer lt m gt MINimum PEAK 2 2 cccceeceecseceeteneceeeeececseceeseeeseceaeaeneens 137 CALCulate lt n gt MARKer lt m gt MINimum RIGHt a 00an0annoaaanaanoaannnnnnnnnennnannnnnrnnnnrnnnnnnnnnnnne 137 CALCulate lt n gt MARKer lt m gt MAXimum LEFT This command moves a marker to the next lower peak The search includes only measurement values to the left of the current marker position Usage Event Manual operation See Search Mode for Next Peak on page 63 CALCulate lt n gt MARKer lt m gt MAXimum NEXT This command moves a marker to the next lower peak Usage Event Manual operation See Search Mode for Next Peak on page 63 See Search Next Peak on page 65 CALCulate lt n gt MARKer lt m gt MAXimum PEAK This command moves a marker to the highest level If the marker is not yet active the command first activates the marker I User Manual 1173 9405 02 07 136 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements h_a Analyzing Multi Carrier Group Delay Measurements Usage Event Manual operation See Peak Search on page 65 CALCulate lt n gt MARKer lt m gt MAXimum RIGHt This command moves a marker to the next lower peak The search includes only meas
106. eference and Phase Reference windows e Nocalibration data is available perform a calibration measurement without the DUT or load stored calibration data No trace visible in Group Delay window e Nocalibration data is available perform a calibration measurement without the DUT or load stored calibration data e MCGD configuration is not compatible to the current calibration reference data Perform a new calibration or adjust measurement settings to fit the calibration data see chapter 6 7 2 Calibration on page 46 Group delay results are not calculated correctly e Check the connections from the DUT to the R amp S FSW and to the signal generator e Repeat the calibration measurement without the DUT or load stored calibration data from the same measurement setup e Check if the MCGD configuration on the R amp S FSW fits to the signal sent by the gen erator e Connect an external reference to the R amp S FSW to improve accuracy see the R amp S FSW User Manual e Check level settings on both the signal generator in use and the R amp S FSW MCGD application Increase the generator s output level and adjust the reference level of the MCGD application accordingly e Check the measurement time Longer measurement times result in better signal to noise ratios in the group delay calculation The Meas Time Auto mode should pro vide a suitable value in most cases see Measurement Time on page 45 e For absolute grou
107. ements CAL Culsate GhbtDelav MODERNER EEN 103 E E ee ue RO KEE 103 SENSe BWIDMIDEMOG Z nonnina EENS ERNEIEREN die 103 Ee EE 103 SENSE CARRIE SPACING EE 103 SENSE FREQU Snt SPAN ged 104 SENSE ORT ER TO EE 104 SERA 104 ISENSGICARRIGMOPR SOU EE 104 SERGE eet OFFS MODE et EENS Eed dee O a ede gedet e ER 105 ISENSeIRL ENG 105 PSE NS ie TSPRA TGF viesisisaccsiassuctantanantucgureatavidunshanssdcanisnons ed asunvbhivsusnabihiddashantdlesdsasibalasuces 105 CALCulate GRPDelay MODE lt GroupDelayAbsRel gt This command sets the group delay mode for multi carriers to either absolute or relative or queries its current state Parameters lt GroupDelayAbsRel gt ABSolute RELative ABSolute Calculates the absolute group delay requires an external trigger RELative Calculates the relative group delay constant delay parts are com pensated for RST ABSolute Manual operation See Group Delay Mode on page 46 SENSe BANDwidth DEMod SENSe BWIDth DEMod Queries the measurement bandwidth in Hz Return values lt Bandwidth gt Default unit HZ Usage Query only SENSe CARRier COUNt lt Count gt Sets queries the number of carriers Parameters lt Count gt Manual operation See Number of Carriers on page 45 SENSe CARRier SPACing lt CarrierSpacing gt Sets queries the carrier spacing in Hz between the multiple carriers T User Manual 1173 9405 02 07 103 R amp S FSW K17 Remote Commands to Per
108. enter frequency to 110 MHz Manual operation See Center Frequency Stepsize on page 37 SENSe FREQuency CENTer STEP AUTO lt State gt This command couples or decouples the center frequency step size to the span Parameters lt State gt ON OFF 0 1 RST 1 Example FREQ CENT STEP AUTO ON Activates the coupling of the step size to the span User Manual 1173 9405 02 07 94 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 4 4 Configuring Multi Carrier Group Delay Measurements SENSe FREQuency CENTer STEP LINK lt CouplingType gt This command couples and decouples the center frequency step size to the span or the resolution bandwidth Parameters lt CouplingType gt SPAN Couples the step size to the span Available for measurements in the frequency domain OFF Decouples the step size RST SPAN Example FREQ CENT STEP LINK SPAN SENSe FREQuency CENTer STEP LINK FACTor lt Factor gt This command defines a step size factor if the center frequency step size is coupled to the span Parameters lt Factor gt 1 to 100 PCT RST 10 Example FREQ CENT STEP LINK FACT 20PCT SENSe FREQuency OFFSet lt Offset gt This command defines a frequency offset If this value is not 0 Hz the application assumes that the input signal was frequency shifted outside the application All results of type freq
109. er Manual 1173 9405 02 07 48 R amp S FSW K17 Configuration Output Settings an effect the next time the Sequencer activates that channel and only for a channel defined sequence In this case a channel in single sweep mode is swept only once by the Sequencer Furthermore the RUN SINGLE key on the front panel controls the Sequencer not indi vidual sweeps RUN SINGLE starts the Sequencer in single mode If the Sequencer is off only the evaluation for the currently displayed measurement channel is updated Remote command INITiate IMMediate on page 118 Continue Single Sweep While the measurement is running the Continue Single Sweep softkey and the RUN SINGLE key are highlighted The running measurement can be aborted by selecting the highlighted softkey or key again Remote command INITiate CONMeas on page 117 Sweep Count Defines the number of sweeps to be performed in the single sweep mode Values from 0 to 32767 are allowed If the values 0 or 1 are set one sweep is performed The sweep count is applied to all the traces in all diagrams During calibration measurements the phase and amplitude values are averaged over the defined number of sweeps If the trace configurations Average Max Hold or Min Hold are set this value also determines the number of averaging or maximum search procedures In continuous sweep mode if sweep count 0 default averaging is performed over 10 sweeps For sweep count
110. erage Count determines the number of averaging procedures MAXHold The maximum value is determined over several sweeps and dis played The R amp S FSW saves the sweep result in the trace memory only if the new value is greater than the previous one MINHold The minimum value is determined from several measurements and displayed The R amp S FSW saves the sweep result in the trace memory only if the new value is lower than the previous one VIEW The current contents of the trace memory are frozen and dis played BLANk Hides the selected trace RST Trace 1 WRITe Trace 2 6 BLANk Example INIT CONT OFF Switching to single sweep mode SWE COUN 16 Sets the number of measurements to 16 DISP TRAC3 MODE WRIT Selects clear write mode for trace 3 INIT WAIL Starts the measurement and waits for the end of the measure ment Manual operation See Mode on page 55 DISPlay WINDow lt n gt TRACe lt t gt MODE HCONtinuous lt State gt This command turns an automatic reset of a trace on and off after a parameter has changed The reset works for trace modes min hold max hold and average Note that the command has no effect if critical parameters like the span have been changed to avoid invalid measurement results EE User Manual 1173 9405 02 07 128 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements hX Ga Analyzing Multi Carrier Group Delay Measurements Parameters lt State
111. ers lt Trace1 gt WRITe AVERage MINHold MAXHold VIEW OFF lt Trace2 gt WRITe AVERage MINHold MAXHold VIEW OFF lt Trace3 gt WRITe AVERage MINHold MAXHold VIEW OFF SENSe JADEMod MTIMe lt MeasTime gt This command queries or sets the measurement time Note that this command is maintained for compatibility reasons only Use SENSe MTIMe on page 104 for new remote control programs Parameters lt MeasTime gt Default unit S E User Manual 1173 9405 02 07 145 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Ech Commands for Compatibility Usage Query only SENSe ADEMod MTIMe AUTO lt MeasTimeAutoMode gt This command enables or disables automatic measurement time selection Note that this command is maintained for compatibility reasons only Use SENSe MTIMe AUTO on page 104 for new remote control programs Parameters lt MeasTimeAutoMode gt SENSe ADEMod RLENgth This command returns the record length set up for current measurement settings Note that this command is maintained for compatibility reasons only Use the SENSe RLENgth on page 105 command for new remote control programs Return values lt SampleCount gt Usage Query only SENSe ADEMod SRATe This command returns the sample rate set up for current measurement settings Note that this command is maintained for compatibility reasons only Use
112. ers described elsewhere CALCulate lt n gt MARKer lt m gt X on page 134 Remote commands exclusive to positioning delta markers CALCulate lt n gt DEL Tamarker lt m gt MAXIMUMILEFPT 0 2200cccsc0eccceseeaceecceeaeaancicdecessancncdeceu s 138 CAL Culate nz DEL TamarkercmzMAximumNENT 138 CAL Culate nz DEL TamarkercmzM ANimumt PDEAK 138 CAL Culate nz DEL TamarkercmzMANimumbRlcGHt naann0annannooannooanennnnnnnnnnnrnrnnnnnnnnnnnne 138 CAL Culate nz DEL Tamarkercmz MiNimum LEET 139 CAL Culate nz DEL Tamarkercmz MiNimumNENT 139 CAL Culate nz DEL Tamarkercmz MiNimumf DEA 139 CAL Culate nz DEL Tamarker mz MiNimum RICH 139 CALCulate lt n gt DELTamarker lt m gt MAXimum LEFT This command moves a delta marker to the next higher value The search includes only measurement values to the left of the current marker position Usage Event Manual operation See Search Mode for Next Peak on page 63 CALCulate lt n gt DELTamarker lt m gt MAXimum NEXT This command moves a marker to the next higher value Usage Event Manual operation See Search Mode for Next Peak on page 63 See Search Next Peak on page 65 CALCulate lt n gt DELTamarker lt m gt MAXimum PEAK This command moves a delta marker to the highest level If the marker is not yet active the command first activates the marker Usage Event Manual operation See Peak Search on page 65 CALCulate lt n gt DELTamarker lt m gt MAXimum RIGHt This comm
113. estovec cena ENEE ENEE ENEE AE 16 Phase TRETSTOIN e 17 Group RE 17 SAN ET 18 Marker RTE 18 Magnitude Displays the spectrum of the input signal In contrast to the Spectrum application the frequency values are determined using an Discrete frequency transformation DFT from the recorded UO data set EE User Manual 1173 9405 02 07 15 R amp S FSW K17 Measurements and Result Display NN a ee Evaluation Methods for Multi Carrier Group Delay 1 Magnitude CF 1 0 GHz Span 1 0 MHz Remote command LAY ADD 1 RIGH MAGN see LAYout ADD WINDow on page 111 Phase Displays the phase deviations of the measured signal in rad or versus frequency 100 0 kHz Span 1 0 MHz Remote command LAY ADD 1 RIGH PHAS see LAYout ADD WINDow on page 111 Magnitude Reference Displays the spectrum of the reference signal In contrast to the Spectrum application the frequency values are determined using DFT from the recorded UO data set EE User Manual 1173 9405 02 07 16 R amp S FSW K17 Measurements and Result Display NS ee Evaluation Methods for Multi Carrier Group Delay 4 Magnitude Reference CF 1 0 GHz 100 0 kHz Span 1 0 MHz Remote command LAY ADD 1 RIGH RMAG see LAYout ADD WINDow on page 111 Phase Reference Displays the phase deviations of the reference signal in rad or versus frequency 5 Phase Reference CF 1 0 GHz 100 0 kHz Span 1 0 MHz Remote command LAY
114. esults from the calibration measurements can also be be re impor ted to the R amp S FSW MCGD application as reference data for further measurements The standard data management functions e g saving or loading instrument settings that are available for all R amp S FSW applications are not described here See the R amp S FSW User Manual for a description of the standard functions Expoon Eupen Adel EE hed 68 6 AEN ee 69 8 1 Export Functions E The following export functions are available via softkeys in the Save Recall menu which is displayed when you select the Save or Open icon in the toolbar Some functions Ei are also available via softkeys or dialog boxes in the corresponding menus e g trace data or calibration data Es lecher et ee Dated TEE 68 storing Measurement Results EEEEEEEEEENREEREEEEEEERREEEEERNERENEEEEEREEENEEEEEER REENEN ena 68 Export Tace to ASCI EE 69 Decimal Separator egene aiana eai aaas a raaa aAa NAERAA AE A EEN 69 Storing Calibration Data Stores the calibration data reference data to the selected file csv format Remote command MMEMory STORe MCGD RCALibration on page 109 Storing Measurement Results Stores the currently displayed measurement results i e all traces in all windows to the selected file csv format The results are output in the same order as they are displayed on the screen window by window trace by trace and table row by table row Note To store the result
115. f the new channel Note If the specified name for a new channel already exists the default name extended by a sequential number is used for the new channel see table 11 1 SEES er User Manual 1173 9405 02 07 81 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Activating Multi Carrier Group Delay Measurements Example INST CRE REPL Spectrum2 IQ IQAnalyzer Replaces the channel named Spectrum2 by a new measurement channel of type IQ Analyzer named IQAnalyzer INSTrument DELete lt ChannelName gt This command deletes a measurement channel If you delete the last measurement channel the default Spectrum channel is activated Parameters lt ChannelName gt String containing the name of the channel you want to delete A measurement channel must exist in order to be able delete it Example INST DEL Spectrum4 Deletes the spectrum channel with the name Spectrum4 INSTrument LIST This command queries all active measurement channels This is useful in order to obtain the names of the existing measurement channels which are required in order to replace or delete the channels Return values lt ChannelType gt For each channel the command returns the channel type and lt ChannelName gt channel name see table 11 1 Tip to change the channel name use the INSTrument REName command Example INST LIST Result for 3 measurement channels AD
116. form Multi Carrier Group Delay Measurements Deeg Configuring Multi Carrier Group Delay Measurements Parameters lt CarrierSpacing gt Default unit HZ Manual operation See Carrier Spacing on page 45 SENSe FREQuency SPAN lt Frequency gt Sets queries the frequency span in Hz Parameters lt Frequency gt Default unit HZ Manual operation See Span on page 37 SENSe MTIMe AUTO lt MeasTimeAutoMode gt This command enables or disables automatic measurement time selection Parameters lt MeasTimeAutoMode n 1 Enables automatic measurement time selection OFF 0 Measurement time is defined manually RST 1 Manual operation See Measurement Time on page 45 SENSe MTIMe lt MeasTime gt This command queries or sets the measurement time Parameters lt MeasTime gt The measurement time RST 5ms Default unit S Usage Query only Manual operation See Measurement Time on page 45 SENSe CARRier OFFSet Queries the offset in Hz of the carriers compared to the center frequency Return values lt CarrierOffset gt Range Carrier spacing 2 to Carrier spacing 2 Default unit HZ Usage Query only Manual operation See Carrier Offset on page 46 EE User Manual 1173 9405 02 07 104 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 4 6 Configuring Multi Carrier Group Delay Measurements SENSe CARRier OFFSet MODE lt CarrierOff
117. g Multi Carrier Group Delay Measurements SENSe JAVERage lt n gt STATe lt t gt lt State gt This command turns averaging for a particular trace in a particular window on and off Parameters lt State gt ON OFF Usage SCPI confirmed SENSe JAVERage lt n gt TYPE lt Mode gt This command selects the trace averaging mode Parameters lt Mode gt viDeo The logarithmic power values are averaged LiNear The power values are averaged before they are converted to log arithmic values POWer The power level values are converted into unit Watt prior to aver aging After the averaging the data is converted back into its orig inal unit RST ViDeo Example AVER TYPE LIN Switches to linear average calculation Usage SCPI confirmed Manual operation See Average Mode on page 55 11 9 2 Setting Up Individual Markers The following commands define the position of markers in the diagram CALCHIatesn gt DEL TaMmarkermAO FR aE a a E A A Ra aara 131 CAL Culate nz DEL TamarkercmzUNk 131 CALCulate lt n gt DELTamarker lt m1 gt LINK TOMAbkercm z 131 GAECulate n gt DEL Famarker MODE naaa a a a naaa aa a aa Aa aaa 131 CAL Culate lt n DEL Freres E E SNE ee 132 CALCu latesn gt DEL Tamarkersm gt STATE eraen aiaa EAT 132 CALCulate lt n gt DEL Tamarkersem gt TRACE kiinaa anaa aaa a a a aaea 132 CALC late DEL a ENEE EE 132 GALGulate lt n gt MARKer lt m gt AOF PF 0 cccscsecccueccenssecnasec
118. gger event occurs Settting a hysteresis avoids unwanted trigger events caused by noise oscillation around the trigger level This setting is only available for IF Power trigger sources The range of the value is between 3 dB and 50 dB with a step width of 1 dB Remote command TRIGger SEQuence IFPower HYSTeresis on page 97 Trigger Holdoff Trigger Source Defines the minimum time in seconds that must pass between two trigger events Trig ger events that occur during the holdoff time are ignored Remote command TRIGger SEQuence 1FPower HOLDoff on page 96 User Manual 1173 9405 02 07 41 R amp S FSW K17 Configuration Trigger Settings Slope lt Trigger Source For all trigger sources except time you can define whether triggering occurs when the signal rises to the trigger level or falls down to it Remote command TRIGger SEQuence SLOPe on page 99 Trigger 2 3 Defines the usage of the variable TRIGGER INPUT OUTPUT connectors where Trigger 2 TRIGGER INPUT OUTPUT connector on the front panel Trigger 3 TRIGGER 3 INPUT OUTPUT connector on the rear panel Trigger 1 is INPUT only Note Providing trigger signals as output is described in detail in the R amp S FSW User Manual Input The signal at the connector is used as an external trigger source by the R amp S FSW No further trigger parameters are available for the connec tor Output The R amp S FSW sends a trigger signal to the
119. he same as SENS FREQ CENT Numeric Suffixes Some keywords have a numeric suffix if the command can be applied to multiple instan ces of an object In that case the suffix selects a particular instance e g a measurement window Numeric suffixes are indicated by angular brackets lt n gt next to the keyword If you don t quote a suffix for keywords that support one a 1 is assumed Example DISPlay WINDow lt 1 4 gt ZOOM STATe enables the zoom in a particular mea surement window selected by the suffix at WINDow DISPlay WINDow4 ZOOM STATe ON refers to window 4 Optional Keywords Some keywords are optional and are only part of the syntax because of SCPI compliance You can include them in the header or not Note that if an optional keyword has a numeric suffix and you need to use the suffix you have to include the optional keyword Otherwise the suffix of the missing keyword is assumed to be the value 1 Optional keywords are emphasized with square brackets Example Without a numeric suffix in the optional keyword SENSe FREQuency CENTer is the same aS FREQuency CENTer With a numeric suffix in the optional keyword DISPlay WINDow lt 1 4 gt ZOOM STATe DISPlay ZO00M STATe ON enables the zoom in window 1 no suffix DISPlay WINDow4 ZOOM STATe ON enables the zoom in window 4 Alternative Keywords A vertical stroke indicates alternatives for a specific keyword You can use bo
120. he y axis Logarithmic Logarithmic scaling only available for logarithmic units dB Linear Linear scaling in percentages from 0 to 100 Remote command DISPlay WINDow lt n gt TRACe Y SCALe MODE on page 91 Units The units define how the demodulated data is displayed They are configured in the Units tab of the Amplitude dialog box gt To display this dialog box do one of the following e Select the Amplitude button in the Analog Demodulation Overview and select the Units tab e Select the MEAS CONFIG key and then the Unit Config softkey EE User Manual 1173 9405 02 07 35 R amp S FSW K17 Configuration Frequency Settings Amplitude Scaling Unit Phase unit Phase Unit begleet tege ee E ee EE 36 Phase Unit Rad Deg Sets the phase unit to rad or deg for displaying phase signals Remote command UNIT ANGLe on page 93 6 5 Frequency Settings Frequency settings for the input signal can be configured via the Frequency dialog box which is displayed when you do one of the following e Select the FREQ key and then the Frequency Config softkey e Select Frequency in the configuration Overview Frequency Center Span Center Frequency Stepsize Stepsize Frequency Offset Value Center Frequency Gtepslze EE 37 Belle EE 37 User Manual 1173 9405 02 07 36 R amp S FSW K17 Configuration Frequency Settings Center Defines the normal center freque
121. iately Note that the trigger pulse level is always opposite to the constant signal level defined by the output Level setting e g for Level High a constant high signal is output to the connector until the Send Trigger button is selected Then a low pulse is sent Which pulse level will be sent is indicated by a graphic on the button Remote command OUTPut TRIGger lt port gt PULSe IMMediate on page 102 Multi Carrier Configuration The multiple carriers are configured in the Multi Carrier Config dialog box To display this dialog box do one of the following e Select the Multi Carrier Config button in the Overview e Select the MEAS CONFIG key and then the Multi Carrier Config softkey Measurement EEN dE 43 AEM AMOI BET 46 Measurement Configuration The measurement parameters for group delay calculation are configured in the Meas Config tab of the Multi Carrier Config dialog box E N User Manual 1173 9405 02 07 43 R amp S FSW K17 Configuration Multi Carrier Configuration Meas Config Calibration Multi Carrier Signal Description Center Frequency Span Number of Carriers Carrier Spacing Measurement Time Mode Value Sweep Count Group Delay Absolute Carrier Offset Estimate Camer Spaggiari aE T A E E a 45 Measurement TMe mercireniunei asiaa E a aai AAA E a aaia 45 eu E 45 Group Delay Modes EE 46 EE en 46 Center Defines the normal center frequency of the signal The
122. ion methods All evaluation methods available for the Multi Carrier Group Delay application are displayed in the evaluation bar in SmartGrid mode when you do one of the following e Select the EJ SmartGrid icon from the toolbar e Select the Display Config button in the Overview e Press the MEAS key e Select the Display Config softkey in any Multi Carrier Group Delay menu Up to 6 evaluation methods can be displayed simultaneously in separate windows The Multi Carrier Group Delay evaluation methods are described in chapter 4 1 Evaluation Methods for Multi Carrier Group Delay on page 15 i For details on working with the SmartGrid see the R amp S FSW Getting Started manual 7 5 Zoom Functions The zoom functions are only available from the toolbar SIJO LOON EE 66 Multiplo ZOOM E 66 Restore Original Disney exeeeegbrEEEERRENEREEEEERNNEEEEEEERNeEREEKNREEEEENEEREERENEEhEN Nee 67 Deactivating Zoom Selection Ode E 67 Single Zoom R A single zoom replaces the current diagram by a new diagram which displays an enlarged extract of the trace This function can be used repetitively until the required details are visible Remote command DISPlay WINDow lt n gt ZOOM STATe on page 140 DISPlay WINDow lt n gt Z0OOM AREA on page 139 Multiple Zoom User Manual 1173 9405 02 07 66 R amp S FSW K17 Analysis BREET Zoom Functions In multiple zoom mode you can enlarge several different areas of the trac
123. is command selects the way the R amp S FSW application performs measurements sequentially Before this command can be executed the Sequencer must be activated see SYSTem SEQuencer on page 120 A detailed programming example is provided in the Operating Modes chapter in the R amp S FSW User Manual Note In order to synchronize to the end of a sequential measurement using OPC OPC or WAI you must use SING1le Sequence mode For details on synchronization see the Remote Basics chapter in the R amp S FSW User Manual Parameters lt Mode gt SINGle Each measurement is performed once regardless of the chan nel s sweep mode considering each channels sweep count until all measurements in all active channels have been performed CONTinuous The measurements in each active channel are performed one after the other repeatedly regardless of the channel s sweep mode in the same order until the Sequencer is stopped CDEFined First a single sequence is performed Then only those channels in continuous sweep mode INIT CONT ON are repeated RST CONTinuous Example SYST SEQ ON Activates the Sequencer INIT SEQ MODE SING Sets single sequence mode so each active measurement will be performed once INIT SEQ IMM Starts the sequential measurements SYSTem SEQuencer lt State gt This command turns the Sequencer on and off The Sequencer must be active before any other Sequencer commands INIT SEQ
124. ks CALCulate lt n gt MARKer PEXCursion lt Excursion gt This command defines the peak excursion The peak excursion sets the requirements for a peak to be detected during a peak search The unit depends on the measurement Application Result display Unit Spectrum dB MCGD dBm DEG RAD S MS US NS PS SC eee User Manual 1173 9405 02 07 135 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 9 4 2 Analyzing Multi Carrier Group Delay Measurements Parameters lt Excursion gt The excursion is the distance to a trace maximum that must be attained before a new maximum is recognized or the distance to a trace minimum that must be attained before a new minimum is recognized Range 0 to 80 dB MCGD 60 dBm RST 6 0 Manual operation See Peak Excursion on page 64 Positioning Markers The following commands position markers on the trace Useful commands for positioning markers described elsewhere e CALCulate lt n gt DELTamarker lt m gt X on page 132 Remote commands exclusive to positioning markers CALCulate lt n gt MARKer lt m gt MAXiIMUM LEFT ccccesccccsececeesseceesceeseseesseeeeceaceeeseseeeanees 136 CAL Culate nz M AbkercmzMAximumNENT inna rai dieniniai anaa 136 CAL Culate nzM Abkercmz M ANimum PDEAKT nn nsneosssnsnnennrerorsrnrnnnnene 136 CALCulate lt n gt MARKer lt m gt MAXimMUM RIGHL c ccccccsececeeeseecscees
125. l on page 52 SENSe ADJust CONFigure DURation MODE lt Mode gt In order to determine the ideal reference level the R amp S FSW performs a measurement on the current input data This command selects the way the R amp S FSW determines the length of the measurement T User Manual 1173 9405 02 07 106 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Deeg Configuring Multi Carrier Group Delay Measurements Parameters lt Mode gt AUTO The R amp S FSW determines the measurement length automatically according to the current input data MANual The R amp S FSW uses the measurement length defined by SENSe ADJust CONFigure DURation on page 106 RST AUTO Manual operation See Resetting the Automatic Measurement Time Meastime Auto on page 52 See Changing the Automatic Measurement Time Meastime Manual on page 52 SENSe JADJust CONFigure HYSTeresis LOWer lt Threshold gt When the reference level is adjusted automatically using the SENSe ADJust LEVel on page 108 command the internal attenuators and the preamplifier are also adjusted In order to avoid frequent adaptation due to small changes in the input signal you can define a hysteresis This setting defines a lower threshold the signal must fall below compared to the last measurement before the reference level is adapted auto matically Parameters lt Threshold gt Range 0 dB to 200 dB RST 1dB Default
126. l MET 53 Setting the Reference Level Automatically Auto Level Automatically determines the optimal reference level for the current input data At the same time the internal attenuators and the preamplifier for analog baseband input the fullscale level are adjusted so the signal to noise ratio is optimized while signal com pression clipping and overload conditions are minimized In order to do so a level measurement is performed to determine the optimal reference level You can change the measurement time for the level measurement if necessary see Changing the Automatic Measurement Time Meastime Manual on page 52 Remote command SENSe ADJust LEVe1 on page 108 Resetting the Automatic Measurement Time Meastime Auto Resets the measurement duration for automatic settings to the default value Remote command SENSe ADJust CONFigure DURation MODE on page 106 Changing the Automatic Measurement Time Meastime Manual This function allows you to change the measurement duration for automatic setting adjustments Enter the value in seconds Remote command SENSe ADJust CONFigure DURation MODE on page 106 SENSe ADJust CONFigure DURation on page 106 Upper Level Hysteresis When the reference level is adjusted automatically using the Auto Level function the internal attenuators and the preamplifier are also adjusted In order to avoid frequent adaptation due to small changes in the input signal
127. layed The R amp S FSW saves the sweep result in the trace memory only if the new value is lower than the previous one Average The average is formed over several sweeps The Average Count on page 56 determines the number of averaging procedures View The current contents of the trace memory are frozen and displayed Blank Removes the selected trace from the display Remote command DISPlay WINDow lt n gt TRACe lt t gt MODE on page 128 Hold If activated traces in Min Hold Max Hold and Average mode are not reset after specific parameter changes have been made Normally the measurement is started anew after parameter changes before the mea surement results are analyzed e g using a marker In all cases that require a new mea surement after parameter changes the trace is reset automatically to avoid false results e g with span changes For applications that require no reset after parameter changes the automatic reset can be switched off The default setting is off Remote command DISPlay WINDow lt n gt TRACe lt t gt MODE HCONtinuous on page 128 Average Mode Defines the mode with which the trace is averaged over several sweeps A different averaging mode can be defined for each trace This setting is only applicable if trace mode Average is selected EE User Manual 1173 9405 02 07 55 R amp S FSW K17 Analysis Trace Settings How many sweeps are averaged is defined by the Ave
128. lifier CT ES since E E 89 PROSE NG VALUS EE 90 INPut GAIN STATe lt State gt This command turns the preamplifier on and off The command requires option R amp S FSW B24 Parameters lt State gt ON OFF RST OFF Example INP GAIN STAT ON Switches on 30 dB preamplification Usage SCPI confirmed Manual operation See Input Settings on page 32 See Preamplifier option B24 on page 32 E N User Manual 1173 9405 02 07 89 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Deeg Configuring Multi Carrier Group Delay Measurements INPut GAIN VALue lt Gain gt This command selects the preamplification level if the preamplifier is activated INP GAIN STAT ON see INPut GAIN STATe on page 89 The command requires option R amp S FSW B24 Parameters lt Gain gt 15 dB 30 dB The availability of preamplification levels depends on the R amp S FSW model e R amp S FSW8 15dB and 30 dB e R amp S FSW13 15dB and 30 dB e R amp S FSW26 30 dB All other values are rounded to the nearest of these two RST OFF Example INP GAIN VAL 30 Switches on 30 dB preamplification Usage SCPI confirmed Manual operation See Input Settings on page 32 See Preamplifier option B24 on page 32 11 4 2 4 Scaling the Y Axis Units DiSblavlfWiNDow nzETRACevtSCALel cece eeeeeeeeeeaeaaeaaaaaeeeeeeeeeseeeesaeaaaeaaes 90 DISPlay WINDow lt n gt TRACe Y SCALE MAXIMUM isis cctcecsecanc
129. linking markers is no longer possible and the function is automatically deactivated User Manual 1173 9405 02 07 62 R amp S FSW K17 Analysis BREET Markers An exception to this rule is the center frequency If a different center frequency was used for calibration the markers can still be linked However in this case the markers are not moved to a specific x value but to the same horizontal position relative to the diagram edge Remote command CALCulate lt n gt MARKer lt m gt LINK on page 135 7 3 2 Marker Search Settings and Positioning Functions Several functions are available to set the marker to a specific position very quickly and easily or to use the current marker position to define another characteristic value In order to determine the required marker position searches may be performed The search results can be influenced by special settings Most marker positioning functions and the search settings are available in the MKR gt menu Search settings are also available via the MARKER key or in the vertical Marker Con fig tab of the Analysis dialog box horizontal Search Settings tab The remote commands required to define these settings are described in chapter 11 9 4 Searching for Peaks and Positioning the Marker on page 135 Marker Search Gett nee eccedere EERSTEN REENEN ER EEEEE E tee 63 Esebuer os snc0sciccireccceccccsieaccescessandannatiettedscamedecdscdcnaseesaasaaaeadesnbnasaneceaseee
130. log box During this time no other actions can be per formed on the R amp S FSW The results are used as reference data for the group delay calculation The date and time of the most recently performed or loaded calibration measurement is indicated in the channel bar and at the top of the dialog box Remote command CALibration MCGD on page 108 Storing Calibration Data Stores the calibration data reference data to the selected file csv format Remote command MMEMory STORe MCGD RCALibration on page 109 User Manual 1173 9405 02 07 47 R amp S FSW K17 Configuration 6 8 Sweep Settings Loading Calibration Data Loads the calibration data reference data from the selected file csv format to the instrument The current reference data in the MCGD application is overwritten the loaded data is used for the group delay calculation Note When loading calibration data the number of carriers in the stored data must cor respond to the currently defined number of carriers for the measurement otherwise load ing fails Remote command MMEMory LOAD MCGD RCALibration on page 109 Decimal Separator Defines the decimal separator for floating point numerals for the data export files Eval uation programs require different separators in different languages Remote command FORMat DEXPort DSEParator on page 126 Sweep Settings The sweep settings define how often data from the input signal is acquired
131. n page 31 INPut EATT lt Attenuation gt This command defines an electronic attenuation manually Automatic mode must be switched off INP EATT AUTO OFF see INPut EATT AUTO on page 89 If the current reference level is not compatible with an attenuation that has been set manually the command also adjusts the reference level Parameters lt Attenuation gt attenuation in dB Range see data sheet Increment 1 dB RST 0 dB OFF Example INP EATT AUTO OFF INP EATT 10 dB E N User Manual 1173 9405 02 07 88 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 4 2 3 Configuring Multi Carrier Group Delay Measurements Manual operation See Using Electronic Attenuation Option B25 on page 31 INPut EATT AUTO lt State gt This command turns automatic selection of the electronic attenuation on and off If on electronic attenuation reduces the mechanical attenuation whenever possible Parameters lt State gt ON OFF 0 1 RST 1 Example INP EATT AUTO OFF Manual operation See Using Electronic Attenuation Option B25 on page 31 INPut EATT STATe lt State gt This command turns the electronic attenuator on and off Parameters lt State gt ON OFF RST OFF Example INP EATT STAT ON Switches the electronic attenuator into the signal path Manual operation See Using Electronic Attenuation Option B25 on page 31 Configuring a Preamp
132. nce level is then used as the maximum on the y axis Since the R amp S FSW hardware is adapted according to this value it is recommended that you set the reference level close above the expected maximum signal level to ensure an optimum measurement no compression good signal to noise ratio Note that the Reference Level value ignores the Shifting the Display Offset It is important to know the actual power level the R amp S FSW must handle Remote command DISPlay WINDow lt n gt TRACe Y SCALe RLEVel on page 87 Shifting the Display Offset Reference Level Defines an arithmetic level offset This offset is added to the measured level irrespective of the selected unit The scaling of the y axis is changed accordingly Define an offset if the signal is attenuated or amplified before it is fed into the R amp S FSW so the application shows correct power results All displayed power level results will be shifted by this value Note however that the Reference Level value ignores the Reference Level Offset It is important to know the actual power level the R amp S FSW must handle EES User Manual 1173 9405 02 07 30 R amp S FSW K17 Configuration Amplitude and Y Axis Scaling To determine the required offset consider the external attenuation or gain applied to the input signal A positive value indicates that an attenuation took place R amp S FSW increa ses the displayed power values a negative value indica
133. ncy of the signal The allowed range of values for the center frequency depends on the frequency span fmax and SpanNmin are specified in the data sheet Remote command SENSe FREQuency CENTer on page 93 Span Defines the frequency span to be measured Only a multiple of the carrier spacing can be defined The Number of Carriers is adapted accordingly see Span on page 20 Remote command SENSe FREQuency SPAN on page 104 Center Frequency Stepsize Defines the step size by which the center frequency is increased or decreased when the arrow keys are pressed When you use the rotary knob the center frequency changes in steps of only 1 10 of the Center Frequency Stepsize The step size can be coupled to another value or it can be manually set to a fixed value X Span Sets the step size for the center frequency to a defined factor of the span The X Factor defines the percentage of the span Values between 1 and 100 in steps of 1 are allowed The default setting is 10 Center Sets the step size to the value of the center frequency The used value is indicated in the Value field Marker This setting is only available if a marker is active Sets the step size to the value of the current marker and removes the coupling of the step size to span The used value is indicated in the Value field Manual Defines a fixed step size for the center frequency Enter the step size in the Value
134. ndicated for reference only Manual The measurement time is defined manually enter the measurement time in seconds Remote command SENSe MTIMe on page 104 SENSe MTIMe AUTO on page 104 Sweep Count Defines the number of sweeps to be performed in the single sweep mode Values from 0 to 32767 are allowed If the values 0 or 1 are set one sweep is performed The sweep count is applied to all the traces in all diagrams During calibration measurements the phase and amplitude values are averaged over the defined number of sweeps If the trace configurations Average Max Hold or Min Hold are set this value also determines the number of averaging or maximum search procedures E a User Manual 1173 9405 02 07 45 R amp S FSW K17 Configuration 6 7 2 Multi Carrier Configuration In continuous sweep mode if sweep count 0 default averaging is performed over 10 sweeps For sweep count 1 no averaging maxhold or minhold operations are per formed Remote command SENSe SWEep COUNt on page 121 Group Delay Mode Defines how the group delay is calculated Absolute Calculates the absolute group delay requires an external trigger Relative Calculates the relative group delay constant delay parts are compen sated for Remote command CALCulate GRPDelay MODE on page 103 Carrier Offset Defines the offset of the carrier compared to the center frequency so the offset can be compensat
135. ndow from the Specifics for selection list that is displayed in the Overview and in all window specific configuration dialog boxes The Overview and dialog boxes are updated to indicate the settings for the selected window Input Source Settings The input source determines which data the R amp S FSW will analyze Input settings can be configured via the INPUT OUTPUT key in the Input dialog box Some settings are also available in the Amplitude tab of the Amplitude dialog box The Digital IQ input source is only available in applications that support UO data pro cessing and is described in detail in the R amp S FSW UO Analyzer User Manual 6 3 1 Radio Frequency IBU ices Avenida ieee eed ee eee eta 27 Radio Frequency Input The default input source for the R amp S FSW is Radio Frequency i e the signal at the RF INPUT connector on the front panel of the R amp S FSW If no additional options are installed this is the only available input source TNs 82 QGnartrim wen Input Source Power Sensor Probes Frequency External Input Coupling Mixer Impedance Digital I 9 Q High Pass Filter 1 3 GHz Analog YIG Preselector off Baseband Input Connector e Baseband Input I a TAs ie y EE 28 impedant TTT 28 POPP aS Ce sich GRE a en esece dace wpnaesedaaneusteanarecneeeasioavee sien sdusosdeplincease 28 VW IGSPRCS CIS EE 28 User Manual 1173 9405 02 07 27 R amp S FSW K17 Configuration
136. neral Marken Settings eseon naanin cays 134 e Searching for Peaks and Positioning the Market 135 ZOOMIAG MO INS DIS Pay EE 139 Configuring Standard Traces Useful commands for trace configuration described elsewhere DISPlay WINDow lt n gt TRACe Y SPACing on page 93 DISPlay WINDow lt n gt TRACe Y SCALe on page 90 Remote commands exclusive to trace configuration DISPlayFWINDow si gt T RACE e ET 128 DISPlay WINDow lt n gt TRACe lt t gt MODE HCONtiNUOUS cceeeeeeeeeeeeeeeeeeeeseeeeeaaeeneeeees 128 DISPlay WINDow lt n gt TRACe lt t gt STATe 0 ccceeeeeeeeeeeneeaeeeaeeseeeeeeateaaeaeenseeenatenees 129 E LE e E TE 129 SENSeJAVERagesna ESTATE a anae aa a e a aa AAA 130 SENSE AVER ge n T YPE coii E i AE aA E AEA 130 E N User Manual 1173 9405 02 07 127 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Deeg Analyzing Multi Carrier Group Delay Measurements DISPlay WINDow lt n gt TRACe lt t gt MODE lt Mode gt This command selects the trace mode In case of max hold min hold or average trace mode you can set the number of single measurements with Sweep Count Note that synchronization to the end of the measure ment is possible only in single sweep mode Parameters lt Mode gt WRITe Overwrite mode the trace is overwritten by each sweep This is the default setting AVERage The average is formed over several sweeps The Sweep Av
137. ng the R amp S FSW is not included in the application manuals All user manuals are also available for download from the R amp S website on the R amp S FSW product page at http www2 rohde schwarz com product FSW html LE User Manual 1173 9405 02 07 6 R amp S FSW K17 Preface REESEN Conventions Used in the Documentation Service Manual This manual is available in PDF format on the CD delivered with the instrument It describes how to check compliance with rated specifications instrument function repair troubleshooting and fault elimination It contains all information required for repairing the R amp S FSW by replacing modules Release Notes The release notes describe the installation of the firmware new and modified functions eliminated problems and last minute changes to the documentation The corresponding firmware version is indicated on the title page of the release notes The most recent release notes are also available for download from the R amp S website on the R amp S FSW product page at hitp www2 rohde schwarz com product FSW html gt Downloads gt Firmware 1 3 Conventions Used in the Documentation 1 3 1 Typographical Conventions The following text markers are used throughout this documentation Convention Description Graphical user interface ele All names of graphical user interface elements on the screen such as dia ments log boxes menus options buttons and softke
138. nnector Remote command OUTPut TRIGger lt port gt PULSe LENGth on page 102 Send Trigger Output Type Trigger 2 3 Sends a user defined trigger to the output connector immediately Note that the trigger pulse level is always opposite to the constant signal level defined by the output Level setting e g for Level High a constant high signal is output to the connector until the Send Trigger button is selected Then a low pulse is sent Which pulse level will be sent is indicated by a graphic on the button Remote command OUTPut TRIGger lt port gt PULSe IMMediate on page 102 6 10 Automatic Settings Some settings can be adjusted by the R amp S FSW automatically according to the current measurement settings and signal characteristics User Manual 1173 9405 02 07 51 R amp S FSW K17 Configuration Automatic Settings MSRA operating mode In MSRA operating mode the following automatic settings are not available as they require a new data acquisition However the GSM application cannot perform data acquisition in MSRA operating mode To activate the automatic adjustment of a setting select the corresponding function in the AUTO SET menu Setting the Reference Level Automatically Auto Level 52 Resetting the Automatic Measurement Time Meastime Auto 52 Changing the Automatic Measurement Time Meastime Manual 52 Upper Level Hysteresis niiina aa aaaea aa iia aaa aaa Naaa 52 Lower Lava
139. nnnnnnnnnnunnnnnnnnnnnnnnnnnnnnnnnnnn nanan NN 25 6 3 Input Source Settings NEES ENEE KEEN REESEN REENEN EVERE NES 27 6 4 Amplitude and Y AXiS SCalING ccccccseessseeeeeeeeeseeeeeeeeeeeeeeeeeeeeeeeeseeeeeeeeeeeeeeeseeeneees 29 6 5 Frequency Seti Siz ccs cece cs ccc cecene ccc cecee ESCH 36 66 Trigger Settings Ee EEN EE EAR E 38 6 7 Multi Carrier Configuration eccssseceeeeeessseeeeeeeeeeeeeeeeeeeeeeeaeeseeeeeeeseesseeeeeeeeenseseeeneees 43 68 Sweep Settings EE 48 6 9 Output Settings cuori aE a 49 6 10 Automatic Betting eENEAEEEEAENEENENAEEEEE ENEE EE cee EES EE EEERE Ee 51 Z Analysis viaccess ccs ce a eegenen 54 71 Trace Setting Scaicccccce ticdevecctec cee eicies cectceee reves ceadeaceteeecencecedeneessensceedeesscnancceeteeeecasneceerees 54 7 2 Trace Export SeteingS 0iccc 0 c iscccececcniecececsecsieneseecenetenesceuneccieeccennecesteeedanceeereeddansecetees 57 LEE User Manual 1173 9405 02 07 3 R amp S FSW K17 Contents 7 3 7 4 7 5 8 1 8 2 10 10 1 11 11 2 11 3 11 4 11 5 11 6 11 7 11 8 11 9 11 10 12 12 1 12 2 12 3 dl 58 Display Configurations cccesccesicedcececssccetevedateccctieedarscceteccasncectveddasnecdeveedaneceteredanseeeteee 66 ZOOM FUNCTIONS seisin aaa a a vee saunecetrecdasnecerrses 66 Importing and Exporting ReESUuItS ccccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 68 Export FUNCIONS sirki araona rran eaaa aaa a aa eaaa Aaaa a aN anaia aE SENER 68 Import FUNCTIONS
140. nother Marker on page 61 CALCulate lt n gt DELTamarker MODE lt Mode gt This command selects the delta marker mode Parameters lt Mode gt ABSolute Delta marker position in absolute terms RELative Delta marker position in relation to a reference marker RST RELative Example CALC DELT MODE ABS Absolute delta marker position User Manual 1173 9405 02 07 131 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements hX Analyzing Multi Carrier Group Delay Measurements CALCulate lt n gt DELTamarker lt m gt MREF lt Reference gt This command selects a reference marker for a delta marker other than marker 1 Parameters lt Reference gt 1 to 16 Selects markers 1 to 16 as the reference Example CALC DELT3 MREF 2 Specifies that the values of delta marker 3 are relative to marker 2 Manual operation See Reference Marker on page 61 CALCulate lt n gt DELTamarker lt m gt STATe lt State gt This command turns delta markers on and off If necessary the command activates the delta marker first No suffix at DELTamarker turns on delta marker 1 Parameters lt State gt ON OFF RST OFF Example CALC DELT2 ON Turns on delta marker 2 Manual operation See Marker State on page 60 See Marker Type on page 60 CALCulate lt n gt DELTamarker lt m gt TRACe lt Trace gt This command selects the trace a delta marker is positioned on Note that th
141. nput settings see chapter 6 3 Input Source Settings on page 27 Preamplifier option B24 Input Settings If option R amp S FSW B24 is installed a preamplifier can be activated for the RF input signal For R amp S FSW 26 models the input signal is amplified by 30 dB if the preamplifier is activated For R amp S FSW 8 or 13 models the following settings are available You can use a preamplifier to analyze signals from DUTs with low input power Off Deactivates the preamplifier 15 dB The RF input signal is amplified by about 15 dB 30 dB The RF input signal is amplified by about 30 dB Remote command INPut GAIN STATe on page 89 INPut GAIN VALue on page 90 Scaling the Y Axis The individual scaling settings that affect the vertical axis are described here Note that scaling settings are window specific as opposed to the amplitude settings Depending on the result display different methods of defining the scaling are available To configure the y axis scaling settings Vertical Axis settings can be configured via the AMPT key or in the Amplitude dialog box gt To display the Amplitude dialog box do one of the following e Select Amplitude from the Overview e Select the AMPT key and then the Scale Config softkey E N User Manual 1173 9405 02 07 32 R amp S FSW K17 Configuration Amplitude and Y Axis Scaling Amplitude Scaling Unit Range Scaling Be Logarithmic Range 100 dB p
142. nt requires the following devices e A baseband signal generator e g a Vector Signal Generator R amp S SMU e The R amp S FSW with application firmware R amp S FSW K17 Multi Carrier Group Delay e The device under test to be analyzed gt Connect the signal generator output to the RF INPUT connector of the R amp S FSW first without the DUT then with the DUT inbetween For absolute group delay measurement connect the trigger output of the signal generator to one of the trigger inputs TRIGGER INPUT of the R amp S FSW see Trigger 2 3 on page 42 Signal generator Trigger Fig 5 1 Multi Carrier Group Delay test setup User Manual 1173 9405 02 07 22 Measurement Setup It is recommended that you use an input signal with a low crest factor to get the phase response of the DUT Furthermore an external frequency reference is recommended for high accuracy measurements The following list summarizes the necessary measurement and calculation steps 1 Calibration measurement without DUT Peailk 2 Measurement with DUT Pmeas K 3 Evaluate group delay r f ell With Pua f Unwrap Pye 1 Pag 1 m df R amp S FSW K17 Configuration Default Settings for Multi Carrier Group Delay measurements 6 Configuration Multi Carrier Group Delay Application Multi Carrier Group Delay measurements require a special application on the R amp S FSW which you activate using the MODE key on the front panel
143. nuous Sweep essssssssssseessserrsessrrnssserrnnnserrene Display een le EE External D Freg EE Frequency Contig ME Group delay iz VQ Ge EE IE e WT Input Source Config Lower Level Hysteresis Marker Comlig i ecsacids ess ctiaiseresisiee Marker to Trace Meastime Auto s ciccccceseccstscccscssecasecsssassersesetsdueceess Meastime Manual s an Min ia Multi Carrier Config cceceeeceeeceeeeeeeeeeeeeeeteneeeeee VIE dE Next Peak Sos i Non Delta ET Outputs Contig EE Peak i Preamp EE Ref Level sacristiri aidai aaide Ref Level Offset zg RF Atten Auf sugue EER EES arnad iaa Ed RF Atten Manual 0 ccc ecceeeceeneeeeeeeeeeeneeseneenaes RF Power is Scale Config EE ET ler RE le WEE Select Marker Single Sweep Sweep count Trace 1 2 3 4 Trace e le EE Trigger el ME Trigger Offset Upper Level Hysteresis SDAIN EE Definition Displayed EE Specifics for Configuration EE 27 User Manual 1173 9405 02 07 159 R amp S FSW K17 Index Status registers STAT QUES 2POW ii ccciccsscccecsnccesecsiecccestestinessuczsssedeass 85 Step size Markers remote Control eceeeeeeeeeeeeeeeeees 134 Storing Calibration data uk KREE 47 68 Measurement results oo eee eect eeeeeeeeeeeee 68 Suffixes t 80 Remote commands cceeeeeeeeeeeeeeeeneeeeeteeee 77 Sweep ABDOMINO EE 48 49 Ver 21 45 49 Perf
144. o replace an existing window use the LAYout WINDow lt n gt REPLace command This command is always used as a query so that you immediately obtain the name of the new window as a result Parameters lt Direction gt LEFT RIGHt ABOVe BELow lt WindowType gt Type of measurement window you want to add See LAYout ADD WINDow on page 111 for a list of available window types Return values lt NewWindowName gt When adding a new window the command returns its name by default the same as its number as a result Example LAY WIND1 ADD LEFT MTAB Result U 2 U Adds a new window named 2 with a marker table to the left of window 1 Usage Query only LAYout WINDow lt n gt IDENtify This command queries the name of a particular display window indicated by the lt n gt suffix Note to query the index of a particular window use the LAYout IDENtify WINDow command Return values lt WindowName gt String containing the name of a window In the default state the name of the window is its index Usage Query only LAY out WINDow lt n gt REMove This command removes the window specified by the suffix lt n gt from the display The result of this command is identical to the LAYout REMove WINDow command Usage Event User Manual 1173 9405 02 07 115 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 7 Configuring and Performing Sweeps
145. of origin x 0 y 0 is in the lower left corner of the screen The end point x 100 y 100 is in the upper right corner of the screen See figure 11 1 The direction in which the splitter is moved depends on the screen layout If the windows are positioned horizontally the splitter also moves horizontally If the windows are positioned vertically the splitter also moves vertically Range 0 to 100 Example LAY SPL 1 3 50 Moves the splitter between window 1 Frequency Sweep and 3 Marker Table to the center 50 of the screen i e in the figure above to the left Example LAY SPL 1 4 70 Moves the splitter between window 1 Frequency Sweep and 3 Marker Peak List towards the top 70 of the screen The following commands have the exact same effect as any com bination of windows above and below the splitter moves the splitter vertically AY SPL 3 2 70 AY SPL 4 1 70 AY SPL 2 1 70 User Manual 1173 9405 02 07 114 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Deg Configuring the Result Display LAY out WINDow lt n gt ADD lt Direction gt lt WindowType gt This command adds a measurement window to the display Note that with this command the suffix lt n gt determines the existing window next to which the new window is added as opposed to LAYout ADD WINDow for which the existing window is defined by a parameter T
146. ommand determines the grid spacing on the Y axis for all diagrams where possible Parameters lt Value gt numeric value the unit depends on the result display Defines the range per division total range 10 lt Value gt RST depends on the result display Example DISP TRAC Y PDIV 10 Sets the grid spacing to 10 units e g dB per division Manual operation See Configuring a Reference Point and Divisions on page 34 See Range per Division on page 35 DISPlay WINDow lt n gt TRACe Y SCALe RPOSition lt Position gt This command defines the vertical position of the reference level on the display grid The R amp S FSW adjusts the scaling of the y axis accordingly For measurements with the external generator R amp S FSW B10 the command defines the position of the reference value Example DISP TRAC Y RPOS 50PCT Usage SCPI confirmed Manual operation See Defining a Range and the Reference Level Position on page 34 See Ref Level Position on page 34 See Configuring a Reference Point and Divisions on page 34 See Y Axis Reference Position on page 35 DISPlay WINDow lt n gt TRACe Y SCALe RVALue lt Value gt The command defines the power value assigned to the reference position in the grid For external generator calibration measurements requires External Generator Control option R amp S FSW B10 this command defines the power offset value assigned to the reference position Parameters lt Value gt
147. on Select the Overview softkey to display the Overview for a Multi Carrier Group Delay measurement Select the Amplitude button and define the required attenuation and reference level for the generated input signal Note Correct attenuation and reference level settings are an important factor for accurate group delay measurement results You can also use the auto leveling func tion in the R amp S FSW Spectrum application before starting the MCGD application The attenuation and reference level values are then passed on to the new MCGD mea surement channel Select the Frequency button to define the input signal s center frequency To measure the absolute group delay select the Trigger button and select the trigger source External Trigger1 Select the Multi Carrier Config button to describe the signal and define measure ment settings a Define the carrier spacing b Define the number of carriers tones or the frequency span according to the settings on the generator c Ifthe measurement time determined automatically is not adequate define it man ually d To average the results over several sweeps increase the sweep count e Tocalculate an absolute group delay select Absolute mode for the group delay result Check the displayed results to ensure the measurement configuration is adequate Press the RUN SINGLE key to stop the continuous sweep mode Select the Multi Carrier Config softkey to re open the
148. on data 0 cece ee eesneeeeeeeaeees 48 69 Lower Level Hysteresis DOM CY ege eege Sege 53 M Magnitude flatness SOC GAIN aii a a aa 20 Magnitude vs Frequency Evaluation method ccccccscseceeeeeeeeeeeeeeeeeeeees 15 16 Markers Assigned aCe ehara vd diana Basic Settings ess dh gra gud deg d tee arida Configuration remote control Configuration softkey cceceseeeeeeeeee DGaCtiVAtIAG sinnar aiaiai Delta markers Fixed reference remote control Linked WEE Linking Minimum Minimum remote control ccceeeceeeeeteeeeeeteeeees Next MINIMUM osssisesseeisesereeeen Next minimum remote control Next EE Next peak remote control bed a Peak iresten aiies Eege ridiani iana Peak remote Control ccceeeeceeeeeeeeeeeeeseeeeees Position Positioning Positioning remote ccccecceeeeeseeeeeeeeesteeeeeeees Positioning remote control s Querying position remote ee cece ees Retrieving results remote ceeeceeeeeeeeeeeeeeeees State Step size remote control ET Table evaluation method Marker table Evaluation method si cseccccecestien dek ENEE Nk deen 18 Marker to Trace DOMKOY EE 61 User Manual 1173 9405 02 07 157 R amp S FSW K17 Index Maximizing Windows remote c ceccceeeeceeeeeteeeeeeeseeeeeeeees 110 MCGD Multi Carrier Group Delay Application 0111111111
149. on see the Remote Basics chapter in the R amp S FSW User Manual Example For Spectrum application INIT CONT OFF Switches to single sweep mode DISP WIND TRAC MODE AVER Switches on trace averaging SWE COUN 20 Sets the sweep counter to 20 sweeps INIT WAI Starts the measurement and waits for the end of the 20 sweeps Manual operation See Single Sweep RUN SINGLE on page 48 INITiate SEQuencer ABORt This command stops the currently active sequence of measurements The Sequencer itself is not deactivated so you can start a new sequence immediately using INITiate SEQuencer IMMediate on page 119 To deactivate the Sequencer use SYSTem SEQuencer on page 120 Usage Event INITiate SEQuencer IMMediate This command starts a new sequence of measurements by the Sequencer Its effect is similar to the INITiate IMMediate command used for a single measurement Before this command can be executed the Sequencer must be activated see SYSTem SEQuencer on page 120 Example SYST SEQ ON Activates the Sequencer INIT SEQ MODE SING Sets single sequence mode so each active measurement will be performed once INIT SEQ IMM Starts the sequential measurements Usage Event User Manual 1173 9405 02 07 119 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements bX eas Configuring and Performing Sweeps INITiate SEQuencer MODE lt Mode gt Th
150. orming remote ccccsceseeeeeeteeeeeeeeeeeeeeeees 116 Settings Settings remote 0 cece e reset eeeeneeeeeeeee 116 T Traces Aligning carrier frequencies ceecee 21 Average mode sa Averaging remote control seseesseereeerrerereneeee 130 Configuration Softkey eeeeeeeeeeeeeereerrerierrrereens 54 Configuring remote control Export format ue ggek ge ENNEN ed 48 58 69 EXPOMING DE 57 58 69 Exporting results remote 125 ele e WE M oniinn enaa r AE E Mode remote Sa Retrieving results remote c cee eects 124 SOCIO CUNG E 55 Settings predefined a Settings remote Control eee eeeeeeeeeeeeeees 127 EU E 57 Trigger Conditions remote 0 eee eee ee eeneeeeeeneeeees 96 Configuration softkey 00 0 eee ceeeeeeeeeeeeees 38 Drop out time S 2 External remote ssena deeg ggeusgeueegeuEgeedEuEe eege 99 POND OT EE 41 Hysteresis ve RE Offset Leotkeut og eer 41 Output 8 FREMOLS COMPO as dances cetesbceacnteavencacereaseovannennis eebe 95 ee 42 99 Trigger level External trigger remote 00 0 cee eeeeeeeeeeeeee 97 VQ Power remote ica ccecescenetnccadercssceeaceceeseenestaereanestcn IF Power remote a RE POWE remote ccccenceseneescenesceceaceneneestensanesnees MIIG GEM SOULCE o ccvecsteacesceacatonasen uve tuntesncesunsevbbeavarseadeatuences External a Ereegnes ge ee IF Power de D PRE Ge EE MPOUBIESHOOLIAG 2 cesicnver coasicensswetveven Gees
151. output connector to be used by connected devices Further trigger parameters are available for the connector Remote command OUTPut TRIGger lt port gt LEVel on page 101 OUTPut TRIGger lt port gt DIRection on page 100 Output Type lt Trigger 2 3 Type of signal to be sent to the output Device Trig Default Sends a trigger when the R amp S FSW triggers gered Trigger Sends a high level trigger when the R amp S FSW is in Ready for trig Armed ger state This state is indicated by a status bit in the STATus OPERation reg ister bit 5 as well as by a low level signal at the AUX port pin 9 User Defined Sends a trigger when user selects Send Trigger button In this case further parameters are available for the output signal Remote command OUTPut TRIGger lt port gt OTYPe on page 101 Level Output Type lt Trigger 2 3 Defines whether a constant high 1 or low 0 signal is sent to the output connector Remote command OUTPut TRIGger lt port gt LEVel on page 101 Pulse Length Output Type Trigger 2 3 Defines the length of the pulse sent as a trigger to the output connector Remote command OUTPut TRIGger lt port gt PULSe LENGth on page 102 E N User Manual 1173 9405 02 07 42 R amp S FSW K17 Configuration 6 7 6 7 1 Multi Carrier Configuration Send Trigger Output Type Trigger 2 3 Sends a user defined trigger to the output connector immed
152. p delay calculation an external trigger has to be used Check whether an external trigger is connected and is being sent to the R amp S FSW The trigger periodicity has to be an integer multiple of the signal s periodicity which is 1 carrier spacing e Increase the sweep count for absolute group delay calculation for example 100 sweeps to improve the measurement result Use the sweep count for calibration as well as for group delay measurement trace averaging to compensate for trigger inaccuracies e Increase the carrier spacing on the used multi carrier signal to reduce noise in the group delay calculation Reducing the carrier spacing for multi carrier signals leads E User Manual 1173 9405 02 07 73 R amp S FSW K17 Optimizing and Troubleshooting the Measurement Error and Status Messages to a better frequency resolution but also causes more noise in the calculated group delay e For very low signal levels and short measurement times the frequency estimation used by the MCGD application to determine the exact position of the carriers can degrade the measurement result due to uncompensated intercarrier interference Increase the signal generator s output level Alternatively you can select the carrier offset mode Fixed In this case frequency estimation is disabled and the carrier offset is set to a fixed value 0 Hz for odd number of carriers and carrier spacing 2 for even number of carriers accordingly 10 1 Error an
153. played Trace settings can be configured via the TRACE key in the Traces dialog box or in the vertical Traces tab of the Analysis dialog box Trace data can also be exported to an ASCII file for further analysis For details see chapter 7 2 Trace Export Settings on page 57 SF Cnasbrim Grauntalau Traces 4 Traces Trace Export Logarithmic Quick Config Set Trace Mode Set Trace Mode Max Avg Min Max Cirwrite Min User Manual 1173 9405 02 07 54 R amp S FSW K17 Analysis BEE Trace Settings PAMEV AGS COUN EE 56 Predefined Trace Settings Quick Config essssssesssrrressesernannrsnnnnasasennnnnannnnnanaenennnana 56 Trace 1 Traee 2 Trace 3 Trace 4 SORKCYS scccecerdiuiaccceA i taiecceisiiacceesrneiaiane 57 Trace 1 Trace 2 Trace 3 Trace 4 Selects the corresponding trace for configuration The currently selected trace is high lighted orange Remote command DISPlay WINDow lt n gt TRACe lt t gt STATe on page 129 Selected via numeric suffix of TRACe lt t gt commands Mode Defines the update mode for subsequent traces Clear Write Overwrite mode the trace is overwritten by each sweep This is the default setting Max Hold The maximum value is determined over several sweeps and displayed The R amp S FSW saves the sweep result in the trace memory only if the new value is greater than the previous one Min Hold The minimum value is determined from several measurements and disp
154. r Remote command INPut FILTer HPASs STATe on page 85 YIG Preselector Activates or deactivates the YlG preselector An internal YlG preselector at the input of the R amp S FSW ensures that image frequencies are rejected However this is only possible for a restricted bandwidth In order to use the maximum bandwidth for signal analysis you can deactivate the YlG preselector at the input of the R amp S FSW which may lead to image frequency display Note that the YlG preselector is active only on frequencies greater than 8 GHz Therefore switching the YlG preselector on or off has no effect if the frequency is below that value Note For the following measurements the YIG Preselector is off by default if available UO Analyzer and thus in all applications in MSRA operating mode e Multi Carrier Group Delay e GSM e VSA IESSE User Manual 1173 9405 02 07 28 R amp S FSW K17 Configuration Amplitude and Y Axis Scaling INPut FILTer YIG STATe on page 85 6 4 Amplitude and Y Axis Scaling The amplitude and y axis scaling are configured in the Amplitude dialog box Amplitude settings are identical to the base unit For background information on amplitude settings see the R amp S FSW User Manual gt To display this dialog box do one of the following e Select the Amplitude button in the Overview e Select the AMPT key and then the Amplitude Config softkey at ele TTT 29 SS CEMIIVG LING W NMS Sci e
155. r 1 the R amp S FSW performs one single sweep in single sweep mode In continuous sweep mode if the sweep count is set to 0 a moving average over 10 sweeps is performed Range 0 to 32767 RST 0 SWE COUN 64 Sets the number of sweeps to 64 INIT CONT OFF Switches to single sweep mode INIT WAI Starts a sweep and waits for its end SCPI confirmed See Sweep Count on page 45 User Manual 1173 9405 02 07 121 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 8 11 8 1 Retrieving Results SENSe SWEep COUNt CURRent This query returns the current number of started sweeps or measurements This com mand is only available if a sweep count value is defined and the instrument is in single sweep mode Example SWE COUNt 64 Sets sweep count to 64 INIT CONT OFF Switches to single sweep mode INIT Starts a sweep without waiting for the sweep end SWE COUN CURR Queries the number of started sweeps Usage Query only Retrieving Results The following commands are required to retrieve the results in a remote environment e Retrieving Marker Resuhts AAA 122 ge Retrieving Trace Results 27205 124 Exporting Trace Fester eeh E ege 125 Retrieving Marker Results Useful commands for retrieving results described elsewhere e CALCulate lt n gt DELTamarker lt m gt X on page 132 CALCulate lt n gt MARKer lt m gt X on page 134 Remote command
156. r positioning cece seeeeeseeeeeeneeeeeeees 65 UE 65 Next Peak Marker positioning asss enpresan 65 eu E 65 Noise SOURCE socct ae dee 50 User Manual 1173 9405 02 07 O Offset FFEQUGINCY EE 37 Reference level A 30 Options Electronic attenuation 28 31 High pass filter B13 cccccceceeseseeeeeeeeeeeeeeeee 28 85 Preamplifier B24 cc ceccecceeeeceeeeneeeeeeeeeeeeseeeeeeae 32 Orthogonal Measurement method ceeeeeeeseeeeeseeeeeeee 21 Orthogonal frequency transformation OFT 21 Output Configuration remote ccccceeceeeeeeeeeeteeeeeeeees 105 Configuration softkey mergo Kei 50 d EE 49 lut e 42 50 Overload RF input remote ieissa aiiai 85 Overview Contiguration EE 25 P Peak GXCUrS OM EE 64 REMOS EE 135 Peak list Peak e TE 64 Peaks Marker positioning 2 cceceeeceeeeeeeeeeeteteeeeeeeeee 65 NOX TE 65 le 65 Peak search Ke enaa AEEA AUE N 65 MOOS is cesiccescadacesszeventescoresiscxccuveteenteceieensssdessenssieeneeesess 63 Performing Multi Carrier Group Delay measurement sess 70 Phase Wit peat se Alsi sic aeadwactiive atin Eder 36 Phase vs Frequency Evaluation method ccccccccseceseeeeeeeeeeeeeeeeeees 16 17 Preamplifier SOWING WE 32 Settings MEMOS oe ccsescccseesscccesssaceveeeassceevssseessesccetaes 89 le 32 Presetting Channel Sia asciv xclies trees need nase tae aaa t AEE Default val
157. rage Count on page 56 Linear The power level values are converted into linear units prior to averaging After the averaging the data is converted back into its original unit Logarithmic For logarithmic scaling the values are averaged in dBm For linear scaling the behavior is the same as with linear averaging Power Activates linear power averaging The power level values are converted into unit Watt prior to averaging After the averaging the data is converted back into its original unit Use this mode to average power values in Volts or Amperes correctly Remote command SENSe AVERage lt n gt TYPE on page 130 Average Count Determines the number of averaging or maximum search procedures If the trace modes Average Max Hold or Min Hold are set In continuous sweep mode if sweep count 0 default averaging is performed over 10 sweeps For sweep count 1 no averaging maxhold or minhold operations are per formed This value is identical to the Sweep Count setting in the Sweep and Multi carrier con figuration Remote command SENSe AVERage COUNt on page 129 Predefined Trace Settings Quick Config Commonly required trace settings have been predefined and can be applied very quickly by selecting the appropriate button Function Trace Settings Preset All Traces Trace 1 Clear Write Traces 2 4 Blank Set Trace Mode Trace 1 Max Hold Max
158. rements y Axis Linear Scaling of y axis linear LIN or logarithmic LOG Level Range 100 dB Display range in y direction Unit dB with x axis LOG with x axis LIN Ref Position 100 Position of reference value referred to diagram limits 0 lower edge Ref Value 0 0 dBm Reference value y Unit dBm Unit of y values dB V A W depending on the selected unit with y axis LOG or with y axis LIN Values 1001 Number of measurement points 95000000 20 5 Measured values lt x value gt lt y value gt 96000000 20 3 97000000 24 2 Data section for individual trace Trace 2 Next trace in same window Data section for individual window Window 2 Phase Name of next window Data section for individual trace Trace 1 First trace EE User Manual 1173 9405 02 07 151 R amp S FSW K17 List of Remote Commands MC Group Delay List of Remote Commands MC Group Delay CALCulate GRPDelay MODE E 103 CALCulatesn gt DEL TamarkermAOF E aeaeeteeg gege AER EESd ege Eege Seite 131 GAL Culatesn gt DEL Tamarker MODE iseeisesceceesszes pases seven tie sihies ean eege ed ENNER 131 CAL Culate nz DEL Tamarker m1z LINK TOMARR erem 131 CAL Culate nz DEI Tamarker mz UNK CAL Culate nz DEI Tamarker mzMAximum LEET CAL Culate nz DEI Tamarker mz MAximum NENT CALCulate lt n gt DELTamarker lt m gt MAXiMUM RIGHL 0 0 2 cceeeeeecceeeeeeeeeeeeeeeeeeeseaeeeseesaaeeesecaeeseeenaeeeeseneeeeeeas
159. rence level position i e the position of the maximum AD converter value on the level axis in where 0 corresponds to the lower and 100 to the upper limit of the diagram Remote command DISPlay WINDow lt n gt TRACe Y SCALe RPOSition on page 92 Scaling Defining a Range and the Reference Level Position Defines the scaling method for the y axis Logarithmic Logarithmic scaling only available for logarithmic units dB Linear Unit Linear scaling in the unit of the measured signal Linear Per Linear scaling in percentages from 0 to 100 cent Absolute The labeling of the level lines refers to the absolute value of the refer ence level not available for Linear Percent Relative The scaling is in dB relative to the reference level only available for logarithmic units dB The upper line of the grid reference level is always at 0 dB Remote command DISPlay WINDow lt n gt TRACe Y SPACing on page 93 DISPlay WINDow lt n gt TRACe Y SCALe MODE on page 91 Configuring a Reference Point and Divisions Defines the displayed range using a reference point and the size of the divisions Y Axis Reference Value Configuring a Reference Point and Divisions Defines a reference value for the y axis in the current unit The y axis is adapted so that the reference value is displayed at the Y Axis Reference Position Remote command DISPlay WINDow lt n gt TRACe Y SCALe RVALue on page
160. roup Delay measurement with the R amp S FSW K17 option For details on the individual functions and settings see chapter 6 Configuration on page 24 Additionally the procedure to generate the multi carrier signal for the frequency range to be analyzed on a signal generator is described using the R amp S SMU as an example For details on configuring the signal generator see the R amp S SMU User Manual To generate a multi carrier signal for the frequency range of the DUT on an R amp S SMU 1 Preset the signal generator 2 Inthe Baseband menu select Multicarrier CW Alternatively the R amp S SMU can produce multi carrier signals using the ARB option 3 Inthe Carrier Setup area define the No of Carriers and Carrier Spacing such that the generated signal covers the frequency range in which the DUT is to be analyzed 4 Inthe Optimize Crest Factor Mode field select Chirp to improve the SNR in the MC Group Delay measurement 5 To improve measurement accuracy send a trigger signal to the R amp S FSW a Select the Trigger Marker button b Select MODE and select Auto c Select MARKER 1 and select Restart d Exit the Trigger Marker menu Activate the multi carrier signal by switching State to ON Close the Baseband menu Open the RF A Mod menu oo N o In the RF A Mod menu select RF ON to activate the RF modulation 10 Select the FREQ key to define the center frequency of the test
161. rrier Group Delay 0 0 0 cee ceeeeeeeeeeeeeeee 24 ASCII trace export c cccccscsscscsesesesee sesssestesssesssesescseeenes 147 D LEReE eee e ege 31 Auto T 8 Data format Displayed ccccccccsssesesessssceecetsesescsesesetesecececscseseaes 11 ASCII ENNEN Electronic 31 Binary Manual 8 une Option EE 31 Decimal separator Protective remote c cccscseseseseecseteseseteeeeeseseees 85 Trace evpont EEN 48 58 69 Settings remote oo cc ccceccccsececsesseseteceeeeseseeeeseeeeees 87 Default values Auto level Fee geet eege eege 24 Hysteresis oo ccccececcecscessescee sesesesceeeecsesescseeeeesees 52 53 Delta markers 61 Reference level Defining EE Sei 60 SOPKCY nona Positioning remote 138 Auto Settings ccececceeceeesseseseeeesesceceeseseeneeeseeeeneneeesnenenees Diagram footer information ve 12 Meastime Auto softkey n Discrete frequency transformation DFT s es 15 Meastime Manual softkey ccccccsecseseeeeseeeeteeees 52 Display Remote control ccccccccscscscssscsssscecsescscscscstecscecatevees 106 Configuration Average COUN eeesessssesssesescsssseseeecuesescacsssesesesesceceesesenes 56 Information ENEE Average mode Drop out time KEE 55 Trigger EEN 41 Averaging Duplicating ele 21 Measurement channel remote E 81 Traces remote control seesseeeeessseeerrereeerrrrreenreee 130 E C SS Electronic input attenuation brenne ee Error messages Date and time Errors E
162. rror messages FLOVIEDD ER 30 FUNCIONS marisse een ae eaa aR Evaluation Loading data SC ME Ve EEN 15 Loading data remote ccccccsesesseseseeesesteeseeeees 108 Evaluation methods Measurement remote ceccccsscseesesesesesseseseeeees 108 Remote ENEE 111 Performing nY Export format Storing data aean ah ni 47 68 Measurement results Storing data remote ccccceceeceeseseseeeeteeeeees 108 Traces Troubleshooting Exporting Carrier Offset ees en i Calibration data ENEE 68 Carriers Measurement results 0 0 0 0 eee 68 Elle EE 45 Measurement settings 0 00 ve OT Carmien SPACING EEN 45 Trace data ENEE 68 Traces oo ore 57 58 69 Trac s remote os gece deeg aiia 125 User Manual 1173 9405 02 07 156 R amp S FSW K17 Index External trigger Level remote EE 97 Ge 39 F File format UE 149 Trace OX PON E 147 Filters High pass remote c cece eee ce eeeeee eee eeneeeeneeeeee 85 High pass RF input eee ee eeeeeeeeeeeeeee 28 VIG EMOTE EE 85 Format RE 147 Data remote i cccercsisecerseccrsmestesicenieaecienesne 124 126 127 Free Run Trigger SOMKCY E 39 Frequency Configuration remote 00 0 eee ce eeeeeeeneeeeeeeees 93 Configuration softkey 0 cece ee eeeeeeeneeeeeeees 36 FREQUENCY OSCE osc cecesiencestcacsinesatins cop aseavecenseteunbnnenceneeiens 37 G Gain Null ME Evaluation method Group delay ADSOlUTE eege EES 21 Definition 20 Mot
163. s 41024 lt valuel gt lt value2 gt lt value n gt with 4 number of digits 4 in the example of the following number of data bytes 1024 number of following data bytes 1024 in the example lt Value gt 4 byte floating point value Reading out data in binary format is quicker than in ASCII format Thus binary format is recommended for large amounts of data 12 2 Reference ASCII File Export Format Trace data both measurement and reference traces can be exported to a file in ASCII format for further evaluation in other applications The file consists of the header containing important scaling parameters and a data section containing the trace data Generally the format of this ASCII file can be processed by spreadsheet calculation pro grams e g MS Excel Different language versions of evaluation programs may require a different handling of the decimal point Thus you can define the decimal separator to be used decimal point or comma see Decimal Separator on page 48 LEE User Manual 1173 9405 02 07 147 R amp S FSW K17 Annex Reference ASCII File Export Format The data of the file header consist of three columns each separated by a semicolon parameter name numeric value basic unit The data section contains the measured data in two columns which are also separated by a semicolon Table 12 1 ASCII file format for trace export File contents Description Header data
164. s The unit is s Range The range depends on the current x axis range Example CALC MARK2 X 1 7MHz Positions marker 2 to frequency 1 7 MHz Manual operation See Marker Table on page 18 See Marker Position X value on page 60 General Marker Settings The following commands control general marker functionality e ETGEN 134 HEI ees LINK eegene Sneaker ee deeg ee SG 135 DISPlay MTABle lt DisplayMode gt This command turns the marker table on and off EE User Manual 1173 9405 02 07 134 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 9 4 11 9 4 1 Analyzing Multi Carrier Group Delay Measurements Parameters lt DisplayMode gt ON Turns the marker table on OFF Turns the marker table off AUTO Turns the marker table on if 3 or more markers are active RST AUTO Example DISP MTAB ON Activates the marker table Manual operation See Marker Table Display on page 62 CALCulate lt n gt MARKer lt m gt LINK lt State gt This command sets whether all markers will be linked across all display windows or queries the current setting Parameters lt State gt Manual operation See Linked Markers on page 62 Searching for Peaks and Positioning the Marker The following remote commands are required to search for peaks and position the marker on a trace Searching TOF E 135 PPOSMOMING Ei E 136 e Positioning WEE KEE 138 Searching for Pea
165. s DESSERT The Multi Carrier Measurement Example A span 2 3 carrier spacing Af is required to measure a signal with four carriers Span Sa db Center Frequency As a rule the span can only be defined as a multiple of the carrier spacing Center frequency and carrier offset If the carriers are not aligned with the defined center frequency the offset can be deter mined automatically or set to a fixed value depending on the number of carriers to enhance the result display Demodulation bandwidth The bandwidth to be demodulated during the measurement is determined automatically by the application from the defined span and carrier spacing Measurement time The required duration of the measurement can be determined automatically by the appli cation according to the defined carrier spacing and span or it can be configured manually Averaging results The calculated values can be averaged over several sweeps in order to obtain more reliable results Orthogonal calculation method The orthogonal calculation method aligns the trace points in the result display to the carrier frequencies of the input signal To do so a DFT window length equaling 1 Af is used Absolute vs relative group delay The group delay is calculated relative to the reference signal eliminating any constant delay factors If an external trigger is used the absolute group delay can also be calcu lated EE User Manual 1173 9405 02 07 21 R
166. s 64 7 3 2 1 Marker Search Settings Markers are commonly used to determine peak values i e maximum or minimum values in the measured signal Configuration settings allow you to influence the peak search results These settings are available as softkeys in the Marker To menu or in the Search Set tings tab of the Marker dialog box To display this tab do one of the following e Press the MKR key then select the Marker Config softkey Then select the hori zontal Search Settings tab e Inthe Overview select Analysis and switch to the vertical Marker Config tab Then select the horizontal Search Settings tab Search Mode for Next Peak 63 Peak EXCUS E 64 Search Mode for Next Peak Selects the search mode for the next peak search Left Determines the next maximum minimum to the left of the current peak Absolute Determines the next maximum minimum to either side of the current peak User Manual 1173 9405 02 07 63 R amp S FSW K17 Analysis Markers Right Determines the next maximum minimum to the right of the current peak Remote command CALCulate lt n gt DELTamarker lt m gt MAXimum LEFT on page 138 CALCulate lt n gt MARKer lt m gt MAXimum LEFT on page 136 CALCulate lt n gt DELTamarker lt m gt MAXimum NEXT on page 138 CALCulate lt n gt MARKer lt m gt MAXimum NEXT on page 136 CALCulate lt n gt DELTamarker lt m gt MAXimum RIGHt on page 138 CALCulate lt n gt MARKer lt m gt MAXimum
167. s exclusive to retrieving marker results CAL Culate nz DEL Tamarkercmz SREL ative rnini anaiita ii ads 122 CAL Culate n gt DEL TamarkeTrs M gt EEN 123 CAL CUlate lt n TE EEN 123 CALCulate lt n gt DELTamarker lt m gt X RELative This command queries the relative position of a delta marker on the x axis If necessary the command activates the delta marker first Return values lt Position gt Position of the delta marker in relation to the reference marker or the fixed reference Example CALC DELT3 X REL Outputs the frequency of delta marker 3 relative to marker 1 or relative to the reference position EE User Manual 1173 9405 02 07 122 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements bX MM See Retrieving Results Usage Query only CALCulate lt n gt DELTamarker lt m gt Y This command queries the relative position of a delta marker on the y axis If necessary the command activates the delta marker first To get a valid result you have to perform a complete measurement with synchronization to the end of the measurement before reading out the result This is only possible for single sweeps See also INI Tiate CONTinuous on page 118 The unit depends on the application of the command Return values lt Position gt Position of the delta marker in relation to the reference marker or the fixed reference Example INIT CONT OFF Switches to single sweep mode INIT W
168. s of an individual trace or all traces in ASCII format dat use the Export Trace to ASCII File function The results are output in the same order as they are displayed on the screen window by window trace by trace and table row by table row Remote command MMEMory STORe MCGD MEAS on page 124 E N User Manual 1173 9405 02 07 68 R amp S FSW K17 Importing and Exporting Results Import Functions Export Trace to ASCII File Opens a file selection dialog box and saves the selected trace in ASCII format dat to the specified file and directory The results are output in the same order as they are displayed on the screen window by window trace by trace and table row by table row Both measurement and reference calibration traces can be exported to an ASCII file However the calibration data stored in an ASCII file cannot be re imported to the R amp S FSW to re import the data use Storing Calibration Data instead Note To store the measurement results for all traces in all windows in csv format use the Storing Measurement Results command in the Save Recall gt Export menu For details on the file formats see chapter 12 Annex on page 147 Remote command MMEMory STORe lt n gt TRACe on page 126 Decimal Separator Defines the decimal separator for floating point numerals for the data export files Eval uation programs require different separators in different languages Remote command FORMa
169. sceenseassaccedvecsseaanaseceeveassaans 90 DISPlay WINDow lt n gt TRACe Y SCALe MINIMUM 2 cecceeeecee cece eee eaeaeeeeteeeeeeeeeeaaeeneees 91 DISPlay WINDow lt n gt TRAGe Y SCALC MODE wc cccccacsccetseactssecceccersacctseaecsederaaesceeeeteuss 91 DISPlay WINDow lt n gt TRACe Y SCALe PDIVISION ccceeeeeeeeeeeeeeeeeeeeeeeaeeeeseeeeeeeeeeeaeees 92 DISPlay WINDow lt n gt TRACe Y SCALe RPOSItION AE 92 DISPlay WINDow lt n gt TRACe Y SCALe RVALUGC 0c cceceeeeee eee ee ca eaeeeeeeeeeeeeeeesaeeaaaaaeneees 92 DISPlay WINDow lt n gt TRACe Y SPACING ccceeeeeeeeeeeeeeeeeeeeaeaeaae aaa deeeeeeeeeeeeeeeeesanaaaeaaes 93 UNITANGLS EE 93 DISPlay WINDow lt n gt TRACe Y SCALe lt Range gt This command defines the display range of the y axis Example DISP TRAC Y 110dB Usage SCPI confirmed Manual operation See Defining a Range and the Reference Level Position on page 34 See Range on page 34 DISPlay WINDow lt n gt TRACe Y SCALe MAXimum lt Value gt This command defines the maximum value of the y axis for the selected result display User Manual 1173 9405 02 07 90 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements SSS ES ae Parameters lt Value gt Example Manual operation Configuring Multi Carrier Group Delay Measurements lt numeric value gt RST depends on the result display The unit and range depend on the re
170. scssstisnsvesnsetveendvsanceyeecousenesesesuinaviey es 96 TRIGger SEQuence HOLDOR TIME c icccsccesccsccessesceestedesecsenesossczoaseinsstescecanstcesccsssacoasttenssereuadsessbseastionbets TRIGger SEQuence IF Power HOLDoff TRIiGger SEQuence IFPOWer HY STCreSiS c ccccssecvectecuscesssacvestecssceaccuensstecenesescnchsctecsnesessiasssdesscesotectessesecsevas 97 TRlGoert St Ouencell EVelIEbower tutut E utEn EuN EAENEAEENEAEENEAEAEENEAEE EEA EnnEaEa Eneee net 98 TRIGger SEQuence LEVellQPOWEM iscccescs ccsceaccavesicestesosscasaeieocensabennsstedeasaoastesscesdocsasancnsttsenepacceetssetezberse 98 TRiGger SEQuence LEVel Rtbower AAA 98 TRIGger SEQuence LEVel EXTernal lt port gt ce ee cece eee e eens eceee sees cease seeeseeeseaeeseeeeeseeseeeseneeseeseeees 97 TRlGoert SGEOuencelRFPower HOL Doft 98 TRIG g r SEQuence SLOPE riasin sancussaceyecvesvisvetnaedevocenesevenstevesscsbanenpursnecstesseacdatatsaiayienieyeerss 99 PRIGger SEQUENCE SOURCE vi cis ccs sacs sein crcasa cet ra EE DENTEN EEN EE sentvbasedsacaaceustentineden 99 UNIT ANGLe IEN Ge IADE Mod BANDwidi h DE Modulation 143 IEN Ge IADE Mod BWilDh DE Modulatlon attat nntatatnttnntanntententnera enat 143 IENGe AfD Mod MCbase MET Hod AAA 143 IEN Ge IADEMod MChase GbPACng 143 SENSe JADEMod MCPHase STATE scceceeseeeceesecseeseeceaerececaeesaecaeesseceaeseesaeeeaecaesaeeeaessaeeaeeeaeseneeaeeeas 144 IEN Ge IADEMod MiTlMe AUTO 146 EISES d N
171. setMode gt This command determines how the carrier offset is defined Parameters lt CarrierOffsetMode gt ESTimate Fixed ESTimate The offset is estimated from the measurement data and compen sated for automatically Possible values are in the range of Carrier spacing 2 to Carrier spacing 2 FiXed A fixed offset is used depending on the number of carriers Odd number offset 0 Even number ofset Carrier spacing 2 Manual operation See Carrier Offset on page 46 SENSe RLENgth This command returns the record length determined by the current measurement set tings Return values lt SampleCount gt Number of samples captured in one sweep Usage Query only SENSe SRATe This command returns the sample rate set up for current measurement settings Return values lt SampleRate gt Current sample rate used by the application Usage Query only Configuring the Outputs Configuring trigger input output is described in chapter 11 4 4 2 Configuring the Trigger Output on page 100 DIAGHOSTIC SERViCS NSOURGS EE 105 DIAGnostic SERVice NSOurce lt State gt This command turns the 28 V supply of the BNC connector labeled NOISE SOURCE CONTROL on the front panel on and off I User Manual 1173 9405 02 07 105 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 4 7 Configuring Multi Carrier Group Delay Measurements Parameters lt State
172. signal 11 Select the LEVEL key to define the generator s output power To perform the MC Group Delay measurement on the R amp S FSW 1 Touse the trigger from the signal generator on the R amp S FSW for example to calculate an absolute group delay connect the trigger output of the signal generator Marker 1 on the R amp S SMU in the example above to the trigger input of the R amp S FSW 2 To synchronize the reference frequencies used by the signal generator and the R amp S FSW use an external reference frequency EE User Manual 1173 9405 02 07 70 R amp S FSW K17 How to Perform Measurements in the Multi Carrier Group Delay Application 10 11 12 13 a Connect the external reference output of the signal generator REF OUT to the external reference input on the rear panel of the R amp S FSW REF INPUT 1 20 MHz b On the R amp S FSW press the SETUP key then select the Reference softkey c Inthe Reference Frequency Input area select the used external reference Connect the signal generator to the RF INPUT connector on the front panel of the R amp S FSW without the DUT Configure the signal generator to output a multi carrier signal in the frequency range in which the DUT is to be analyzed as described in To generate a multi carrier signal for the frequency range of the DUT on an R amp S SMU on page 70 Press the MODE key on the front panel of the R amp S FSW and select the MC Group Delay applicati
173. special interest to all manufacturers or testers of trans mission components as well as frequency converters Satellite transponders for exam ple need to be characterized by the phase transmission in addition to the amplitude transmission Both values can be determined precisely and easily with the R amp S FSW Multi Carrier Group Delay application The Multi Carrier Group Delay measurement method The R amp S FSW Multi Carrier Group Delay application evaluates an input signal provided by a signal generator After a preliminary reference measurement of this signal without the device under test the same signal is evaluated with the device subsequently Instead of evaluating the timing of the signals the phase shift and magnitude response of multiple carriers across frequency is measured A baseband signal consisting of several unmodu lated carriers with a fixed step size is used as an input signal allowing for a very quick wideband measurement By measuring the phase differences between the two signals at the input and at the output the application calculates the relative phase between output and input However the phase of the carriers at the input to the DUT does not actually have to be measured Instead the results are normalized That way no reference path or connection is needed between the input and the output of the DUT A reference mixer in the signal generator provides a phase reference at the IF frequency Thus a constant delay fac
174. sult display DISP TRAC Y MIN 60 DISP TRAC Y MAX 0 Defines the y axis with a minimum value of 60 and maximum value of 0 See Defining Min and Max Values on page 35 DISPlay WINDow lt n gt TRACe Y SCALe MINimum lt Value gt This command defines the minimum value of the y axis for the selected result display Parameters lt Value gt Example Manual operation lt numeric value gt RST depends on the result display The unit and range depend on the result display DISP TRAC Y MIN 60 DISP TRAC Y MAX 0 Defines the y axis with a minimum value of 60 and maximum value of 0 See Defining Min and Max Values on page 35 DISPlay WINDow lt n gt TRACe Y SCALe MODE lt Mode gt This command selects the type of scaling of the y axis When the display update during remote control is off this command has no immediate effect Parameters lt Mode gt Example Manual operation ABSolute absolute scaling of the y axis RELative relative scaling of the y axis RST ABSolute DISP TRAC Y MODE REL See Defining a Range and the Reference Level Position on page 34 See Scaling on page 34 See Scale Mode on page 35 User Manual 1173 9405 02 07 91 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Deeg Configuring Multi Carrier Group Delay Measurements DISPlay WINDow lt n gt TRACe Y SCALe PDIVision lt Value gt This remote c
175. t Example LAY ADD 1 LEFT MTAB Result U 2 U Adds a new window named 2 with a marker table to the left of window 1 Usage Query only Manual operation See Magnitude on page 15 See Phase on page 16 See Magnitude Reference on page 16 See Phase Reference on page 17 See Group Delay on page 17 See Gain on page 18 See Marker Table on page 18 EE User Manual 1173 9405 02 07 111 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Deg Configuring the Result Display Table 11 2 lt WindowType gt parameter values for Multi Carrier Group Delay K17 application Parameter value Window type GAIN Gain GDELay Group Delay vs Frequency MAGNitude Magnitude vs Frequency Measurement data MTABle Marker table PHASe Phase vs Frequency Measurement data RMAGnitude Magnitude vs Frequency Reference data RPHase Phase vs Frequency Reference data LAYout CATalog WINDow This command queries the name and index of all active windows from top left to bottom right The result is a comma separated list of values for each window with the syntax lt WindowName_1 gt lt Windowlndex_1 gt lt WindowName_n gt lt Windowlndex_n gt Return values lt WindowName gt string Name of the window In the default state the name of the window is its index lt WindowIndex gt numeric value Index of the window Example LAY CAT Result VO age aL
176. t DEXPort DSEParator on page 126 Import Functions The following import functions are available via softkeys in the Save Recall menu which is displayed when you select the Save or Open icon in the toolbar Calibration data can also be imported from the Calibration configuration dialog box Loading Calibration Data i cccscdiees cece ee ceetaseed cad fate ceeses EA REESEN REES 69 DECI EE E 69 Loading Calibration Data Loads the calibration data reference data from the selected file csv format to the instrument The current reference data in the MCGD application is overwritten the loaded data is used for the group delay calculation Note When loading calibration data the number of carriers in the stored data must cor respond to the currently defined number of carriers for the measurement otherwise load ing fails Remote command MMEMory LOAD MCGD RCALibration on page 109 Decimal Separator Defines the decimal separator for floating point numerals for the data export files Eval uation programs require different separators in different languages Remote command FORMat DEXPort DSEParator on page 126 EE User Manual 1173 9405 02 07 69 R amp S FSW K17 How to Perform Measurements in the Multi Carrier Group Delay Application 9 How to Perform Measurements in the Multi Carrier Group Delay Application The following step by step instructions demonstrate how to perform a Multi Carrier G
177. t cases one or more parameters To use a command as a query you have to append a question mark after the last header element even if the command contains a parameter A header contains one or more keywords separated by a colon Header and parameters are separated by a white space ASCII code 0 to 9 11 to 32 decimal e g blank If there is more than one parameter for a command these are separated by a comma from one another E SSSSSSSSSSSSSSSSSSSan SSSSSSSSSSSS ay User Manual 1173 9405 02 07 75 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Introduction Only the most important characteristics that you need to know when working with SCPI commands are described here For amore complete description refer to the User Manual of the R amp S FSW Remote command examples Note that some remote command examples mentioned in this general introduction may not be supported by this particular application 11 1 1 Conventions used in Descriptions Note the following conventions used in the remote command descriptions e Command usage If not specified otherwise commands can be used both for setting and for querying parameters If a command can be used for setting or querying only or if it initiates an event the usage is stated explicitely e Parameter usage If not specified otherwise a parameter can be used to set a value and it is the result of a query Parameters required only for se
178. tab of the Marker dialog box To display this tab do one of the following e Press the MKR key then select the Marker Config softkey ed User Manual 1173 9405 02 07 61 R amp S FSW K17 Analysis Markers e Inthe Overview select Analysis and switch to the vertical Marker tab Then select the horizontal Marker Settings tab Analysis ee Crantossm GraunNalau _ Traces Markers Marker Settings Search Config Marker Marker Table ER CH 1 Magnitude H Marker Table DIS Piaya ionia ai AEE 62 Linked BE CET 62 Marker Table Display Defines how the marker information is displayed On Displays the marker information in a table in a separate area beneath the diagram Off Displays the marker information within the diagram area Auto Default Up to two markers are displayed in the diagram area If more markers are active the marker table is displayed automatically Remote command DISPlay MTABle on page 134 Linked Markers If enabled the markers in all diagrams are linked i e when you move a marker in one window the markers in all other windows are moved to the same x value Linking markers is only possible if compatible reference data is available or no reference data at all Compatible reference data means the settings used to perform calibration were the same as the currently active measurement settings If measurement settings are changed that do not match the reference data
179. te command Marker selected via suffix lt m gt in remote commands Peak Search Sets the selected marker delta marker to the maximum of the trace If no marker is active marker 1 is activated Remote command CALCulate lt n gt MARKer lt m gt MAXimum PEAK on page 136 CALCulate lt n gt DELTamarker lt m gt MAXimum PEAK on page 138 Search Next Peak Sets the selected marker delta marker to the next lower maximum of the assigned trace If no marker is active marker 1 is activated Remote command CALCulate lt n gt MARKer lt m gt MAXimum NEXT on page 136 CALCulate lt n gt DELTamarker lt m gt MAXimum NEXT on page 138 Search Minimum Sets the selected marker delta marker to the minimum of the trace If no marker is active marker 1 is activated Remote command CALCulate lt n gt MARKer lt m gt MINimum PEAK on page 137 CALCulate lt n gt DELTamarker lt m gt MINimum PEAK on page 139 Search Next Minimum Sets the selected marker delta marker to the next higher minimum of the selected trace If no marker is active marker 1 is activated Remote command CALCulate lt n gt MARKer lt m gt MINimum NEXT on page 137 CALCulate lt n gt DELTamarker lt m gt MINimum NEXT on page 139 eU UUU User Manual 1173 9405 02 07 65 R amp S FSW K17 Analysis Display Configuration 7 4 Display Configuration The captured signal can be displayed using various evaluat
180. te geegent GEES 46 Group Delay vs Frequency Evaluation method issis ninnisin 17 H Hardware settings Displayedl E 11 High pass filter REMOTE sveicccenieciecfccencoaceaterstedest lavevadenedsessterewaieedandelitee 85 RF NDUL missi devcdavs dees ger ea a da desse er 28 Hold Trace Setting iaieineea 55 Hysteresis Lower Auto level cccseeceeeeceeeeceeeeteeeeeeteeeeeees 53 Trigger Upper Auto level l UO Power Trigger SOfKEY absissasi 40 Trigger level remote cccecceeeceeeeeeeeneeeeteeneeeees 98 IF Power Trigger SOTKEY essere deeee els Qoveeiee 40 Trigger level remote 0 0 0 ee cece eeeeeeeseeeeaees 98 Impedance REMOTE svetescecdecivesvecencunceetersnedesedertvadeneasdcelebdestendssedalye 86 SEG ME 28 Importing Calibration data i cccacscinctsiscccecsavsteseshicersdancentedsacnsnays 69 Input COUPLING ged e Act acl i ai a dalsd 28 Coupling remote cccececeeeeeeeeeeeeeteeteeeeeseneentes 85 Overload remote TE ue EEN Source Radio frequency RF seeeeeeeeeseerree 27 Source Configuration softkey cceeeeesseeeeees 27 EE 9 K Keys AUTO SET not used otrese ninian 24 LINES NOE ee o0euieergeete seet Oger N 24 MKR ER MN ege geheegt eege 63 64 MKR FUNCT not used cece cere eeneeeeeeeeeeee 24 Peak Search z RUN CONT RUN SINGLE oreen deann ena oR REE EE 48 49 L Linking Markt normien ie ane e O AEEA ES 61 62 Loading Calibrati
181. tes an external gain R amp S FSW decreases the displayed power values The setting range is 200 dB in 0 01 dB steps Remote command DISPlay WINDow lt n gt TRACe Y SCALe RLEVel OFFSet on page 87 RF Attenuation Defines the attenuation applied to the RF input Attenuation Mode Value RF Attenuation The RF attenuation can be set automatically as a function of the selected reference level Auto mode This ensures that the optimum RF attenuation is always used It is the default setting By default and when Using Electronic Attenuation Option B25 is not available mechanical attenuation is applied In Manual mode you can set the RF attenuation in 1 dB steps down to 0 dB also using the rotary knob Other entries are rounded to the next integer value The range is speci fied in the data sheet If the defined reference level cannot be set for the defined RF attenuation the reference level is adjusted accordingly and the warning Limit reached is displayed NOTICE Risk of hardware damage due to high power levels When decreasing the attenuation manually ensure that the power level does not exceed the maximum level allowed at the RF input as an overload may lead to hardware damage Remote command INPut ATTenuation on page 87 INPut ATTenuation AUTO on page 88 Using Electronic Attenuation Option B25 If option R amp S FSW B25 is installed you can also activate an electronic attenuator In Auto mode the se
182. th keywords to the same effect EE User Manual 1173 9405 02 07 77 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 1 6 11 1 6 1 Introduction Example SENSe BANDwidth BWIDth RESolution In the short form without optional Keywords BAND 1MHZ would have the same effect as BWID 1MHZ SCPI Parameters Many commands feature one or more parameters If a command supports more than one parameter these are separated by a comma Example LAYout ADD WINDow Spectrum LEFT MTABle Parameters may have different forms of values e Numene Vallis gef tegen NEEN 78 ole eani nne ves ce sadahdandudslavaseuadeaiacdcalts a EE Sivdedcestaadaaatdcctacs 79 Character E DEE 79 Character STINGS EE 80 Block DAU EE 80 Numeric Values Numeric values can be entered in any form i e with sign decimal point or exponent In case of physical quantities you can also add the unit If the unit is missing the command uses the basic unit Example with unit SENSe FREQuency CENTer 1GHZ without unit SENSe FREQuency CENTer 159 would also set a frequency of 1 GHz Values exceeding the resolution of the instrument are rounded up or down If the number you have entered is not supported e g in case of discrete steps the command returns an error Instead of a number you can also set numeric values with a text parameter in special cases e MIN
183. tly active appli cation e center frequency and center frequency offset e reference level and reference level offset e attenuation After initial setup the parameters for the measurement channel are stored upon exiting and restored upon re entering the channel Thus you can switch between applications quickly and easily Apart from these settings the following default settings are activated directly after a measurement channel has been set to Multi Carrier Group Delay application or after a Preset Channel E N User Manual 1173 9405 02 07 24 R amp S FSW K17 Configuration Configuration Overview Table 6 1 Default settings for Multi Carrier Group Delay channels Parameter Value Span 10 0 MHz Sweep mode CONTINUOUS Trigger settings FREE RUN Trigger offset 0 Carrier Spacing 200 kHz Measurement time 25 ms manual Sweep count 0 Group Delay mode Traces absolute 1 Clr Write 2 4 blank Evaluations Window 1 Magnitude Window 2 Phase Window 3 Group Delay 6 2 GEI E Ca Overview Dig BB Out Trigger Out Meas Time Configuration Overview Throughout the measurement channel configuration an overview of the most important currently defined settings is provided in the Overview The Overview is displayed when you select the Overview icon which is available at the bottom of all softkey menus Last Ref Cal No Co Data Group
184. tor is eliminated and the group delay is calculated relative to the reference signal If an external trigger is used the absolute group delay can also be calculated Absolute group delay is of interest for instance to equalize the delay of two channels characterize cables and design quadrature FM demodulators LEE User Manual 1173 9405 02 07 13 NOfCarr Af fo Mag Response MC Baseband DUT Grp Delay Generator Fig 3 1 Multi Carrier Group Delay Measurement Setup R amp S FSW K17 Measurements and Result Display Evaluation Methods for Multi Carrier Group Delay 4 Measurements and Result Display The data that was measured by the R amp S FSW can be evaluated using various different methods In the Multi Carrier Group Delay application up to 6 evaluation methods can be displayed simultaneously in separate windows All results are determined from the UO data set captured for the measurement Storing Results The results of the Multi Carrier Group Delay measurement can be stored to a file either in CSV or ASCII format The results of the calibration reference measurement can also be stored in CSV format e Evaluation Methods for Multi Carrier Group Deg 15 4 1 Evaluation Methods for Multi Carrier Group Delay The following evaluation methods can be selected for Multi Carrier Group Delay meas urements rette see EE BRENNEN paella ATA T T ET 15 BMPS eene E A 16 Magnitude Reference 07100 ENNER fie
185. trigger hysteresis which is only available for IF Power trigger sources Parameters lt Hysteresis gt Example Manual operation Range 3 dB to 50dB RST 3 dB TRIG SOUR IFP Sets the IF power trigger source TRIG IFP HYST 10DB Sets the hysteresis limit value See Trigger Source on page 39 See Hysteresis on page 41 TRIGger SEQuence LEVel EXTernal lt port gt lt TriggerLevel gt This command defines the level the external signal must exceed to cause a trigger event Note that the variable INPUT OUTPUT connectors ports 2 3 must be set for use as input using the OUTPut TRIGger lt port gt DIRection command Suffix lt port gt Parameters lt TriggerLevel gt Example Manual operation 1 23 Selects the trigger port 1 trigger port 1 TRIGGER INPUT connector on front panel 2 trigger port 2 TRIGGER INPUT OUTPUT connector on front panel 3 trigger port 3 TRIGGER3 INPUT OUTPUT connector on rear panel Range 0 5 V to 3 5 V RST 1 4 V TRIG LEV 2V See Trigger Source on page 39 See Trigger Level on page 41 User Manual 1173 9405 02 07 97 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements EE Configuring Multi Carrier Group Delay Measurements TRIGger SEQuence LEVel IF Power lt TriggerLevel gt This command defines the power level at the third intermediate frequency that must be exceeded to cause a trigger event Note th
186. tting are indicated as Setting parameters Parameters required only to refine a query are indicated as Query parameters Parameters that are only returned as the result of a query are indicated as Return values e Conformity Commands that are taken from the SCPI standard are indicated as SCPI con firmed All commands used by the R amp S FSW follow the SCPI syntax rules e Asynchronous commands A command which does not automatically finish executing before the next command starts executing overlapping command is indicated as an Asynchronous com mand e Reset values RST Default parameter values that are used directly after resetting the instrument RST command are indicated as RST values if available e Manual operation If the result of a remote command can also be achieved in manual operation a link to the description is inserted 11 1 2 Long and Short Form The keywords have a long and a short form You can use either the long or the short form but no other abbreviations of the keywords The short form is emphasized in upper case letters Note however that this emphasis only serves the purpose to distinguish the short from the long form in the manual For the instrument the case does not matter EE User Manual 1173 9405 02 07 76 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 1 3 11 1 4 11 1 5 Introduction Example SENSe FREQuency CENTer is t
187. ttings are defined automatically in Manual mode you can define the mechanical and electronic attenuation separately Note Electronic attenuation is not available for stop frequencies or center frequencies in zero span gt 13 6 GHz In Auto mode RF attenuation is provided by the electronic attenuator as much as pos sible to reduce the amount of mechanical switching required Mechanical attenuation may provide a better signal to noise ratio however When you switch off electronic attenuation the RF attenuation is automatically set to the same mode auto manual as the electronic attenuation was set to Thus the RF attenu ation may be set to automatic mode and the full attenuation is provided by the mechanical attenuator if possible Both the electronic and the mechanical attenuation can be varied in 1 dB steps Other entries are rounded to the next lower integer value User Manual 1173 9405 02 07 31 R amp S FSW K17 Configuration 6 4 2 Amplitude and Y Axis Scaling If the defined reference level cannot be set for the given attenuation the reference level is adjusted accordingly and the warning Limit reached is displayed in the status bar Remote command INPut EATT STATe on page 89 INPut EATT AUTO on page 89 INPut EATT on page 88 Input Settings Some input settings affect the measured amplitude of the signal as well The parameters Input Coupling and Impedance are identical to those in the I
188. ual is delivered with the instrument in printed form and in PDF format on the CD It provides the information needed to set up and start working with the instrument Basic operations and handling are described Safety information is also included The Getting Started manual in various languages is also available for download from the R amp S website on the R amp S FSW product page at http www2 rohde schwarz com prod uct FSW html User Manuals User manuals are provided for the base unit and each additional software option The user manuals are available in PDF format in printable form on the Documentation CD ROM delivered with the instrument In the user manuals all instrument functions are described in detail Furthermore they provide a complete description of the remote con trol commands with programming examples The user manual for the base unit provides basic information on operating the R amp S FSW in general and the Spectrum application in particular Furthermore the software func tions that enhance the basic functionality for various applications are described here An introduction to remote control is provided as well as information on maintenance instru ment interfaces and troubleshooting In the individual application manuals the specific instrument functions of the application are described in detail For additional information on default settings and parameters refer to the data sheets Basic information on operati
189. uency will be corrected for this shift numerically by the application See also Frequency Offset on page 37 Parameters lt Offset gt Range 100 GHz to 100 GHz RST 0 Hz Example FREQ OFFS 1GHZ Usage SCPI confirmed Manual operation See Frequency Offset on page 37 Triggering Measurements Useful commands for triggering described elsewhere SENSe FREQuency CENTer on page 93 E N User Manual 1173 9405 02 07 95 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements SSS ES eee Configuring Multi Carrier Group Delay Measurements Remote commands exclusive to triggering e Configuring the Triggering Conditions ccccccceeceseeeeeeceneeeeeeeeeeeesenseenenaeeeeeeeees 96 Configuring the Trigger Outpull c2 5c sc ciceet ee ceceaee ee acateces adaeeteeeeanesaneeees 100 11 4 4 1 Configuring the Triggering Conditions REI EN 96 TRiGger SEQuence HOLDON TIME EE 96 TRiGgerl SEQuence IF Power e Rp 96 TRlGoert GtOuencelltbowerHvGTeresls nnne esrsrsrnnnenttorrresnnnnerererenn 97 TRiGger SEQuence LEVel EXTermal lt port gt s22ccccccnseees tice eetasanadeedcucsevenanndnedceeeeaenaeaae 97 TRiGger SEQuence EVelIFPOWe 205 2teieteens hiedeedec citer its eran ade teenie 98 TRiGgerf SEQuetice Ee e 98 TRiGoert GtOuencell EVel Httower cece eeeeeeee ae aes aranak ennak ankan anaana 98 TRiGger SEQuence REPOWERAOQU DOM EE 98 TRIGger SEQuence SLOP
190. ueries the trace length Return values lt TraceLength gt Number of trace points Usage Query only FORMat DATA lt Format gt This command selects the data format that is used for transmission of trace data from the R amp S FSW to the controlling computer Note that the command has no effect for data that you send to the R amp S FSW The R amp S FSW automatically recognizes the data it receives regardless of the format Parameters lt Format gt ASCii ASCii format separated by commas This format is almost always suitable regardless of the actual data format However the data is not as compact as other formats may be REAL 32 32 bit IEEE 754 floating point numbers in the definite length block format In the Spectrum application the format setting REAL is used for the binary transmission of trace data For UO data 8 bytes per sample are returned for this format set ting RST ASCII Example FORM REAL 32 Usage SCPI confirmed MMEMory STORe MCGD MEAS lt File gt This command stores the current measurement results all active traces in all windows including calibration traces to the selected file LEE User Manual 1173 9405 02 07 124 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements SSS SS SSS a Retrieving Results Setting parameters lt File gt path and file name of the csv file that contains the measured data Usage Setting only Manual operation S
191. ues g de Le TEE Protection RF input remote dinesna 85 Q Quick Config MACES EE 56 R le 34 Range per division VaKsen a ar ead aeia 35 Reference level Auto level rrie neneiia e aE 52 Displayed 11 EE EE 30 158 R amp S FSW K17 Index Offset displayed 2s isicccscsieutiadinassccdaciasaaiie 11 Offset Softkey sirisser issa i eseeeeergeiiieees 30 Position Reference measurement Seg Calibration EE 22 Reference position SE eebe E E aE eaa Nea 35 Reference value SE EE eoaid N Remote commande csisiiisiiiisiiibirianerinisisiiiria aiaia Basics on syntax a ei Baler taSkS disiinc adaini Boolean vales sscccicicssctcecsecassteniseseccesscessssesestevensenases Capitalization Character data 0 0 0 eee cece eters eeneeeeneees Data DIOCKS E Numeric values Optional keywords Parameters sasicesexiccsssccssecisasccessseaesevsnssnbeesetestvetterteseiae Strings a fut Resetting RF input protection ccccccecceeeeeeseeeeeeeseeseeeeteeeaee 85 Restoring Channel S ttingS 2 icc wanrieiataietdiaaasiash 26 Result displays GAM E 18 Group Delay vs Frequency cccceseeeeeeeeeeeseeeeetes 17 Magnitude vs Frequency ee Marker table esu greegu keeguEEEEEN edEREEESEENZEAEEe deer 18 Phase vs Frequency ccccseeceeeeeeeeeeeseeeeeeees 16 17 Results ASCII export format cceeeceeceeecteeeeeeeeeeeeeeeeee CSV export IOMa tariasi Data format remote R
192. unit dB Example SENS ADJ CONF HYST LOW 2 For an input signal level of currently 20 dBm the reference level will only be adjusted when the signal level falls below 18 dBm Manual operation See Lower Level Hysteresis on page 53 SENSe JADJust CONFigure HYSTeresis UPPer lt Threshold gt When the reference level is adjusted automatically using the SENSe ADJust LEVel on page 108 command the internal attenuators and the preamplifier are also adjusted In order to avoid frequent adaptation due to small changes in the input signal you can define a hysteresis This setting defines an upper threshold the signal must exceed compared to the last measurement before the reference level is adapted auto matically Parameters lt Threshold gt Range 0 dB to 200 dB RST 1 dB Default unit dB Example SENS ADJ CONF HYST UPP 2 EE User Manual 1173 9405 02 07 107 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements 11 5 Measuring Loading and Storing Calibration Data Example For an input signal level of currently 20 dBm the reference level will only be adjusted when the signal level rises above 22 dBm Manual operation See Upper Level Hysteresis on page 52 SENSe JADJust LEVel This command initiates a single internal measurement that evaluates and sets the ideal reference level for the current input data and measurement settings This ensures that the settings of th
193. urement values to the right of the current marker position Usage Event Manual operation See Search Mode for Next Peak on page 63 CALCulate lt n gt MARKer lt m gt MINimum LEFT This command moves a marker to the next minimum value The search includes only measurement values to the right of the current marker position Usage Event Manual operation See Search Mode for Next Peak on page 63 CALCulate lt n gt MARKer lt m gt MINimum NEXT This command moves a marker to the next minimum value Usage Event Manual operation See Search Mode for Next Peak on page 63 See Search Next Minimum on page 65 CALCulate lt n gt MARKer lt m gt MINimum PEAK This command moves a marker to the minimum level If the marker is not yet active the command first activates the marker Usage Event Manual operation See Search Minimum on page 65 CALCulate lt n gt MARKer lt m gt MINimum RIGHt This command moves a marker to the next minimum value The search includes only measurement values to the right of the current marker position Usage Event Manual operation See Search Mode for Next Peak on page 63 E M User Manual 1173 9405 02 07 137 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Deeg Analyzing Multi Carrier Group Delay Measurements 11 9 4 3 Positioning Delta Markers The following commands position delta markers on the trace Useful commands for positioning delta mark
194. yet available Usage Query only MMEMory LOAD MCGD RCALibration lt File gt This command loads the calibration data stored in the selected file and replaces the current data Setting parameters lt File gt path and file name of the csv file that contains the calibration data Usage Setting only Manual operation See Loading Calibration Data on page 48 MMEMory STORe MCGD RCALibration lt File gt This command stores the current calibration data to the selected file Setting parameters lt File gt path and file name of the csv file that will contain the calibration data Usage Setting only Manual operation See Storing Calibration Data on page 47 Configuring the Result Display The commands required to configure the screen display in a remote environment are described here e General Window Commande 109 e Working with Windows in the Cep 222 EEEEEEREEEEEEENEEEEEEEEEEEERNEEEEEEEEEERENNEEEEeE 110 General Window Commands The following commands are required to configure general window layout independant of the application I User Manual 1173 9405 02 07 109 R amp S FSW K17 Remote Commands to Perform Multi Carrier Group Delay Measurements Configuring the Result Display Note that the suffix lt n gt always refers to the window in the currently selected measure ment channel see INSTrument SELect on page 83 DISPlay FORMAL EE 110 DISPlayPYVINDOWSne E 110 DISPlay FORMat lt Format gt
195. ys are enclosed by quota tion marks KEYS Key names are written in capital letters File names commands File names commands coding samples and screen output are distin program code guished by their font Input Input to be entered by the user is displayed in italics Links Links that you can click are displayed in blue font References References to other parts of the documentation are enclosed by quotation marks 1 3 2 Conventions for Procedure Descriptions When describing how to operate the instrument several alternative methods may be available to perform the same task In this case the procedure using the touchscreen is described Any elements that can be activated by touching can also be clicked using an additionally connected mouse The alternative procedure using the keys on the instru ment or the on screen keyboard is only described if it deviates from the standard oper ating procedures User Manual 1173 9405 02 07 7 Conventions Used in the Documentation The term select may refer to any of the described methods i e using a finger on the touchscreen a mouse pointer in the display or a key on the instrument or on a keyboard R amp S FSW K17 Welcome to the Multi Carrier Group Delay Application Starting the Multi Carrier Group Delay Application 2 Welcome to the Multi Carrier Group Delay Application The R amp S FSW K17 option is a firmware application that adds functionality to perform Multi

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