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R&S®FSW MSRA Mode User Manual

1. 21 Transient Analyslis decedente is 22 Vector Signal Analysis VSA miira Dre tt die E ab 22 cedo c EE 22 TO SCDMA BT S DE 22 cama2000 Bliss 22 TEV AD OMB Soi dit dica 23 e O 23 l Q Analyzer The I Q Analyzer application provides measurement and display functions for digital 1 Q signals Evaluation of the captured I Q data in the frequency and time domain is also possible For details see the R amp S FSW I Q Analyzer User Manual Remote command INST SEL IQ see INSTrument SELect on page 102 Analog Demodulation The Analog Demodulation application requires an instrument equipped with the corre sponding optional software This application provides measurement functions for demodulating AM FM or PM signals For details see the R amp S FSW Analog Demodulation User Manual Remote command INST SEL ADEM see INSTrument SELect on page 102 Pulse Measurements The Pulse application requires an instrument equipped with the Pulse Measurements option R amp S FSW K6 This application provides measurement functions for pulsed sig nals For details see the R amp S FSW K6 User Manual Remote command INST SEL PULSE see INSTrument SELect on page 102 GSM The GSM application requires an instrument equipped with the corresponding optional software This application provides measurement functions for measuring GSM sig nals For details see th
2. TRIGger SEQuence HOLDOoff TIME ttr rrr er nh rr rrr eene tete TRIGger SEQuencel IFPower HOLDofF 5 trt nr rene rrt eren trarre rr ner Rn TRIGger SEQuericeL IFPower HYS Telesis arnoa tre epi reu ce eee Y RS Ker dea atve 139 TRIGger SEQuerice E EVel BBBPOW6LF rt ienr aria re rn rer rer e re ente 139 TRIGger SEQUenca usado e TRIGger SEQuence LEVel IQPower TRIGSer SEQuercerEEVeEREPBOWOF orit nr tei ar iret eee Prid iot D ERE SEPA EI Ec ed TRIGger SEQuence LEVel EXTernal port eese nennen enne nre 139 TRIGger SEQuericeESEOPBOe cdita tern nter eet ree Drei rd Dont e ERR e d ded 141 TRIGSer SEQuernce SOU RC iii an E ER ce Eco da eee E Ev dE Lc e cbe 141 TRIGger SEQuence TIME RINTerval eese i aa nne nr E EE rn 143 Index Symbols occ 137 1xEV DO BTS MSRA applicatiO c ente ce cler one entr 23 3G FDD BTS MSRA ApplicatiO scooter te eoe etate 22 A Aborting Ky 74 75 ACIDE COUINO user dera 36 Activating MSRA remote enc ede edere en 99 Active probe MICKODULLON P 53 Amplitude Analog Baseband Interface B71 settings 57 CotifiguratlOTi eiii isis 54 SCalihg siii ia hern rrr nen ets 59 jupe M 54 Analog Baseband Amplitude settings Input crees wad Input sett
3. sesssee 45 7 2 2 1 Mixer Settings Access Overview gt Input Frontend gt Input Source gt External Mixer gt Mixer Settings or INPUT OUTPUT gt Input Source Config gt Input Source gt External Mixer gt Mixer Settings In this tab you configure the band and specific mixer settings Input Source Settings Input Source Radio Frequency Mixer Settings Basic Settings Conversion Loss Table External Mixer Band Settings Mixer Type RF Start AA RF Stop Handover Freq RF Overrange Preset Band Mixer Settings Range Harmonic Type Harmonic Order Conversion Loss CENNDINEE orcad Cr ig OVSA TREE m 40 o A E E A E T TA 40 MIXGE T VDO A A A a a e 40 Mixer Settings Harmonics Configuration ii 40 M 0 VE TH P 40 A EO 41 Lomo A 41 l Conyers ion MEE NEN 41 External Mixer State Activates or deactivates the external mixer for input If activated ExtMix is indicated in the channel bar of the application together with the used band see Band on page 40 Remote command SENSe MIXer STATe on page 108 RF Start RF Stop Displays the start and stop frequency of the selected band read only The frequency range for the user defined band is defined via the harmonics configura tion see Range 1 2 on page 40 For details on available frequency ranges see table 11 2 Remote command SENSe MIXer FREQuency STARt on page 11
4. ssssssssse 140 RE Power remote pudiste idad 140 Trigger SOURCE eiii tec 63 BB Power US Digital I C as ere v certet Copes 64 External pe M M 63 Free Run 1 109 1 Q Power IF Power 64 Power Sensor 25 65 RF POWER m 65 Troubleshooting Inputoverload rrt rrr 104 U Units Reference level sa etica ce nea tren 54 57 Updating Is sult display 35 5 iaa 74 Result display remote sssssssss 169 Upper Level Hysteresis sese nte titt ne 79 Usable I Q bandwidth Definiti N asian iaa 173 180 UsermandalS comica inside 6 User sample rate Defio 2 cera ada 173 180 V VSA Vector Signal Analysis MSRA application iir reete tet tete 22 Ww Waiting for trigger Status register mme ere 164 Window title bar information seeeenee 11 Windows Configuring creer a 35 Maximutm number 2 n rore t rrr ics 98 Y Y axis Eel 59 Scaling I Q Vector 60 iuro M 58 YIG preselector Activating Deactivating sen 37 Activating Deactivating remote 106
5. Center frequency duration and number of trace points for the application data extract e Offset of the application data extract from the trigger event e Evaluation methods e Range and scaling Trace mode Marker positions Conflicting parameters Master and channel specific parameters can be configured independantly of one another in any order that is convenient to you However there are dependencies between the parameters as the applications can only evaluate data that has been cap tured by the MSRA Master previously Thus configuring parameters is not restricted R amp S FSW MSRA MSRA Basics but you are informed about the violation of possible restrictions by error messages in the status bar of the applications where necessary 6 2 Data Acquisition As mentioned before only the MSRA Master performs a data acquisition Thus the MSRA Master defines the center frequency sample rate and record length of the cap tured l Q data It also defines the trigger event thus all applications have the same trig ger However an offset from the trigger can be defined by the individual applications see Trigger offset vs capture offset on page 29 Performing sweeps When you switch to MSRA mode the Sequencer is automatically activated in continu ous mode The MSRA Master continuously performs a data acquisition If any applica tions are activated then after each measurement the data in the active applications is evaluat
6. Define cvl table for range 1 of band as described in previous example extended V band SENS CORR CVL SEL UserTable SENS CORR CVL COMM User defined conversion loss table for USER band SENS CO SENS CO R RR CVL BAND USER R SENS COR R R R CVL HARM 6 CVL BIAS 1mA SENS CO SENS CO SENS CO CVL MIX FS Z260 CVL SNUM 123 4567 R CVL PORT 3 A A N A NA Conversion loss is linear from 55 GHz to 75 GHz SENS CORR CVL DATA 55GHZ 20DB 75GHZ 30DB jp se Configuring the mixer and band settings Use user defined band and assign new cvl table SENS MIX HARM BAND USER Define band by two ranges range 1 covers 47 48 GHz to 80 GHz harmonic 6 cvl table UserTable range 2 covers 80 GHz to 138 02 GHz harmonic 8 average conv loss of 30 dB SENS MIX HARM TYPE EVEN SENS MIX HARM HIGH STAT ON SENS MIX FREQ HAND 80GHz SENS MIX HARM LOW 6 SENS MIX LOSS TABL LOW UserTable SENS MIX HARM HIGH 8 SENS MIX LOSS HIGH 30dB Query the possible range SENS MIX FREQ STAR Result 47480000000 47 48 GHz SENS MIX FREQ STOP Result 138020000000 138 02 GHz Select single sweep mode INIT CONT OFF Initiate a basic frequency sweep and wait until the sweep has finished INIT WAI Return the trace data default screen configuration TRAC DATA TRACel 11 4 1 3 Configuring Digital I Q Input and Output Useful commands for digital l Q data described e
7. SENSO JADJUSCAL T ARAS Ios 152 SENSe JADJust GONFigure DUR Ati A eae Che E OP o EN T RE REDNU 152 SENSe ADJust CONFigure DURation MODE 2 nor erii etit rn th netta EEN 152 SENSe ADJust CONFigure H YS Teresis LOWer oett retro rp n d a rh een Eno 153 SENSe JADJust CONFigure HYSTeresis UP Periana td 154 SENSe ADJust FREQuency SENSE JADJUSELEV Olivas et rr ra ect eee tte dee E eds eee tgp ii SENSe CORRsction VE BAND edo cince tot eae anv cce e de era een EE 114 SENSe CORRection CVI BIAS 0 ieu ren etre reor Aa 115 SENS CORRection CVL GATAIOG ieiit e ect teo er er ect ree re t geb ra etr dye atu ee 115 SENSe CORRection CUECLEA E isset ttis tue ets te ec is 115 SENSE CORREC CV COMME filicina ana D rn tcn cope re ae alkane denials 116 SENSe CORRection C VIE DATA octo e ter te ect a ea mt gebe eet 116 SENSe CORRection CVE HARMORIG 2a a rcs buic ee ERE REIS Le ene sia ica ener eens 117 SENSe CORR6Gction CVE MIXEN nirre aaaea riena ha tenant cr Re ERE RARA SENS CORRection CVLIPORTS cotton reed tiet re dne Evae He e e Ed ies SENSe CORRection CVL SELect SENSe CORRection CVL SNUMber SENSe FREQ Uericy CEITert ien retro rre ettet a a a ene e PERS TR ERR SENSe EREQuency CENTer STEP cositas ti i SENSe FREQ ncy CENT6er STEBP AUTO 2 irren eec rior Ete E Da PEU EE Er eld SENSe IEREQU erncy OFFSoet 5 reete d geeinigt SENSe IQ BANDwi
8. ierit rtt roce iiinis 40 Modes see Operating mode nnne petto rens 19 MSRA applications 1xEV DO BTS SG EDD BIS tri oth ced n v VE Analog Demodulation esses 21 Analysis interval remote vis 107 Analyzing VQ data 2 metere 84 NEU M 20 Capture OMS incida rtm trs 73 Capture offset remote ssssssssss 169 cdma2000 BTS derti hen o te ette ets 22 Display ele MENS cuida 14 GSM berse ia Ea 21 l Q AhalyZer ates etn telo ede 21 ParaMeters cuido 26 FRESUIGUONS cua il iii 29 SR tete tree edens 23 Specific commands remote sssss 167 TD SCDMA BTS Vector Signal Analysis VSA MSRA Master AMAL ZIAG crac die eii dis Capturing data GOMIQUIING RE Data ACQUISITION retient etat rt Data acquisition basics sssssussssss 27 Data acquisition remote 145 Display elements eei roter rre 13 AAA 26 Results display sitiada aio ds 17 Selecting remote sirio tic 99 AN Trigger offset Trigger settings nter meret nim 61 MSRA mode Remote control eco retten 93 MSRA VIEW tection mette pee eerte Reto Ree det Dee ot 84 Display elemenhts 2 reete tenet 12 jl 12 Multi standard XC MM M 84 Radio Base Station MSR BS s e 16 N Noise OUNCE iicet edi tae tec a Dena ax evo 76 O Offset Analysis Interval oir ara 73 FREQU
9. tete tertie Digital Baseband Interface settings we 48 Overload remote 104 RE eae 490 Settings cese 95 56 Source Configuration softkey ssss 35 Source Radio frequency RF sesers 35 Input sample rate ISR Det iii 173 180 Digital MO ita eat es haat 49 Input settings s ufo 104 Input sources Analog Baseband score 51 Digital Matinal or crie eat 49 IQBlock l G dataiiles eec aaya 172 IQPair l G datailes si tural ect ee 172 K Keys LINES Dot Used orrein a e 32 PRON CONT deett iia tte n tede 74 R N SINGLE titi detti ena atendida 75 L LO Level External Mixer remote control 108 Level External Mixer PF WO Tecolutla ip hh eei AS Lower Level Hysteresis vicio ette trice tse M Measurement channel Creating remote uie tais Deleting remote Duplicating remote Querying remote Renaming remote Replacing remote ivi eer reme Selecting remote rrr eerte Measurement examples MSRA mide cio cri 86 Measurement time AUO SENOS viii corre rir e rh pe eer a rera 79 1 Q data Remote Measurements Activating remote miis e dels 99 Analyzing dis Configuring remote seen 104 Correlating ient retenti tmr re e 19 Result displays rrr tte rre itr tete 17 Microbutton die e M 53 Mixer Type External MIXGE
10. 0 8 sample rate Note For input from the optional Analog Baseband interface If the frequency range defined by the analysis bandwidth and the center frequency exceeds the minimum fre quency 0 Hz for low IF evaluation or the maximum frequency for I jQ evaluation an error is displayed In this case adjust the center frequency see Center Frequency on page 52 or the analysis bandwidth to exclude possible unwanted signal compo nents Remote command TRACe IQ BWIDth on page 148 Maximum Bandwidth Defines the maximum bandwidth to be used by the R amp S FSW for 1 Q data acquisition This setting is only available if a bandwidth extension option greater than 160 MHz is installed on the R amp S FSW Otherwise the maximum bandwidth is determined automati cally For details on the maximum bandwidth see chapter A 3 Sample Rate and Maximum Usable I Q Bandwidth for RF Input on page 173 Auto Default All installed bandwidth extension options are activated The currently available maximum bandwidth is allowed see chapter A 3 Sample Rate and Maximum Usable I Q Bandwidth for RF Input on page 173 Note that using bandwidth extension options greater than 160 MHz may cause more spurious effects See Restricting the maximum bandwidth manually on page 177 80 MHz Restricts the analysis bandwidth to a maximum of 80 MHz The bandwidth extension options greater than 160 MHz are deactiva ted 160 MHz Restricts the analysis
11. This command deletes a measurement channel If you delete the last measurement channel the default Spectrum channel is activa ted 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 IQAnalyzer4 Deletes the channel with the name IQAnalyzer4 Usage Event Activating MSRA Measurements 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 tables below Tip to change the channel name use the INSTrument REName command Example INST LIST Result for 3 measurement channels ADEM Analog Demod IQ IQ Analyzer IQ IQ Analyzer2 Usage Query only Table 11 1 Available measurement channel types and default channel names in MSRA mode Application lt ChannelType gt Parameter Default Channel Name 1 Q 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 Transient Analysis TA Transient Analysis R amp S FSW K60 VSA R amp S FSW K70 DDEM VSA 3GPP FDD BTS BWC
12. Y SCALe RLEVel OFFSet Offset This command defines a reference level offset for all traces lt t gt is irrelevant Parameters lt Offset gt Range 200 dB to 200 dB RST 0dB Example DISP TRAC Y RLEV OFFS 10dB Manual operation See Shifting the Display Offset on page 55 Configuring the Attenuation INPUEATTORIJIalOE ire tpi Ere tu esa tote oar a ee enar eese E rave n epxto De Ebo ADD ERA RRYE 131 INPUEAT TEMUatOM AE TQ use dere cree st wecasuds aa tonta iaa a 131 INPOUCEA Tusce ea Ee ee deoa E exta e in aot um dune end 131 INPUEEATISAUBTO i eiieissceeeevt vi yet sve vent ent yaeve sus va vet oue Pe RH vAWUR Q4 OS Q VEEq SE QRVPPURC aT 132 INPUBEATIESTATDEO E A A caia 132 Configuring MSRA Measurements INPut ATTenuation lt Attenuation gt This command defines the total attenuation for RF input 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 Attenuation Mode Value on page 55 INPut ATTenuation AUTO lt St
13. and Q component for each sample that has been captured during the measurement For more information on I Q data processing modes see the R amp S FSW I Q Analyzer and l Q Input User Manual The data format depends on TRACe 10 DATA FORMat on page 162 Default unit V Retrieving Results Example TRAC IQ STAT ON Enables acquisition of I Q data TRAC IQ SET NORM 10MHz 32MHz EXT POS 0 4096 Measurement configuration Sample Rate 32 MHz Trigger Source External Trigger Slope Positive Pretrigger Samples 0 Number of Samples 4096 FORMat REAL 32 Selects format of response data TRAC IQ DATA Starts measurement and reads results Usage Query only TRACe IQ DATA FORMat Format This command selects the order of the I Q data For details see chapter A 1 Reference Format Description for I Q Data Files on page 172 Parameters Format COMPatible IQBLock IQPair COMPatible and Q values are separated and collected in blocks A block 512k of values is followed by a block 512k of Q values fol lowed by a block of values followed by a block of Q values etc 1 1 1 1 Q Q Q 0 1 1 1 Q Q Q Q IQBLock First all l values are listed then the Q values 1 1 1 1 1 1 Q Q Q Q Q Q IQPair One pair of I Q values after the other is listed 1 Q 1 Q 1 Q RST IQBL TRACe IQ DATA MEMory lt OffsetSamples gt lt NoOfSamples gt This command queries the l Q data currently stored in the memor
14. o The maximum number may be limited further by the available memory on the instru ment Independent vs correlating measurements With the conventional R amp S FSW Signal and Spectrum Analyzer you can perform several different measurements almost simultaneously However the individual mea surements are independent of each other each application captures and evaluates its own set of data regardless of what the other applications do In some cases it may be useful to analyze the exact same input data using different applications For example imagine capturing data from a base station and analyzing the RF spectrum in the Analog Demodulation application If a spur or an unexpected peak occurs you may want to analyze the same data in the I Q Analyzer to see the real and imaginary components of the signal and thus detect the reason for the irregu lar signal Normally when you switch to a different application evaluation is performed on the data that was captured by that application and not the previous one In our example that would mean the irregular signal would be lost Therefore a second oper ating mode is available in the R amp S FSW Multi Standard Radio Analyzer MSRA mode Multi Standard Radio Analyzer mode In Multi Standard Radio Analyzer MSRA mode data acquisition is performed once as an I Q measurement and the captured data is then evaluated by any number of applications for different radio standards Data acquisition a
15. 1 Window number 2 Window type 3 Trace color 4 Trace number 5 Detector 6 Trace mode 7 Analysis interval 8 Analysis line indication Diagram footer information The information in the diagram footer beneath the diagram depends on the evalua tion User Manual 1175 6455 02 14 11 R amp S FSW MSRA Welcome to the MSRA Operating Mode e Center frequency e Number of sweep points e Range per division x axis e Span Spectrum Status bar information Global instrument settings the instrument status and any irregularities are indicated in the status bar beneath the diagram Furthermore the progress of the current operation is displayed in the status bar If an error or warning is available for a measurement channel the Bl icon is displayed next to the tab label in the channel bar 2 2 1 MSRA View The MSRA View is an overview of all active channels in MSRA mode similar to the MultiView tab in Signal and Spectrum Analyzer mode At the top of the screen the MSRA Master is displayed i e the application that captures data Beneath the MSRA Master all active applications are displayed in individual windows Each application has its own channel bar with the current settings as well as a button in order to switch to that application tab directly The MSRA View displays the following basic elements MSRA View 23 MSRA Master GSM 3G FDD BTS 1 Marker T ID t nw Mete Doom mm an mo Sete 100 Lr n
16. By default all installed bandwidth extension options are activated allowing for the maximum possible bandwidth for measurements on the R amp S FSW However in some cases this may not be necessary For example due to the correlation of both parame ters high sample rates automatically lead to an extended analysis bandwidth How ever while a high sample rate may be necessary for example due to postprocessing in an OFDM system the wide bandwidth is not really required On the other hand low sample rates lead to small usable I Q bandwidths In order to ensure the availabilty of the required bandwidth the minimum required bandwidth for the specified sample rate can be selected via remote command only Thus if one of the bandwidth extension options is installed the maximum bandwidth can be restricted manually to a value that may improve the measurement see Maxi mum Bandwidth on page 70 In this case the hardware of the regular RF path is used rather than the hardware required by the R amp S FSW B160 B320 B500 band width extension options The following improvements may be achieved e longer measurement time for sample rates under 300 MHz e 1 Q Power trigger is available e data processing becomes up to 10 times faster A 3 8 Max Sample Rate and Bandwidth with Activated I Q Bandwidth Extension Option B320 U320 Sample rate Maximum l Q bandwidth 100 Hz to 400 MHz proportional up to maximum 320 MHz 400 MH
17. CALCulate MARKer X 1 156ms CALCulate MARKer Y Retrieve Results from WCMDA INST SEL 3GPP FDD BTS Retrieve Composite EVM results TRAC1 DATA TRACel Select Slot No 1 CDP SLOT 1 Search Peak value of Marker in EVM vs Chip CALC5 MARK1 ON CALC5 MARK1 MAX PEAK Retrieve Chip and max EVM value CALC5 MARK1 X Y Reference Format Description for I Q Data Files A Annex A 1 Reference Format Description for I Q Data Files This section describes how l Q data is transferred to the memory during remote control see TRACe 10 DATA FORMat on page 162 command For details on the format of the individual values see chapter A 2 Formats for Returned Values ASCII Format and Binary Format on page 173 For details on the format of I Q export files using the I Q Export function see the R amp S FSW User Manual COMPatible IQBLock IQPair mode I Data 0 I Data 1 Q Data 1 Data 2 Q Data 2 512k Q Data 512k Q Data X N 512k I Data X N 512k Q Data Fig 1 1 I Q data formats Note 512k corresponds to 524288 samples For maximum performance the formats Compatible or IQPair should be used Fur thermore for large amounts of data the data should be in binary format to improve performance In binary format the number of l and Q data can be calculated as follows af DataBytes ofi Data of Q Data 3 Formats for Returned Values ASCII Format and Binary Format F
18. Digital IQ OUT ate 10 MHz Full Scale Level 10 dBm For more information see the R amp S FSW l Q Analyzer and l Q Input User Manual Digital eds tucir ic r oi 49 Input Sample RNG Tm 49 Fur SCA ooe O OO 49 Adjust Reference Level to Full Scale Level ssesssssseseeeeneenee 49 Connected instrumen i oto eoe ettet ena dee nl eee tH Leisure idR Res 49 naso c M 50 Input Source Settings Digital I Q Input State Enables or disable the use of the Digital IQ input source for measurements Digital IQ is only available if the optional Digital Baseband Interface is installed Remote command INPut SELect on page 107 Input Sample Rate Defines the sample rate of the digital I Q signal source This sample rate must corre spond with the sample rate provided by the connected device e g a generator If Auto is selected the sample rate is adjusted automatically by the connected device The allowed range is from 100 Hz to 10 GHz Remote command INPut DIQ SRATe on page 123 INPut DIQ SRATe AUTO on page 124 Full Scale Level The Full Scale Level defines the level and unit that should correspond to an I Q sam ple with the magnitude 1 If Auto is selected the level is automatically set to the value provided by the connec ted device Remote command INPut DIQ RANGe UPPer on page 123 INPut DIQ RANGe UPPer UNIT on page 123 INPut DIQ RANGe UPPer AUTO on
19. External Mixer Remote control 109 Threshold External Mixer remote control 109 Threshold External Mixer esses 43 Auto level S EIC Reference level Ric Auto settings Meastime AUTO nro emet rr epe ert Meastime Manual T MSRA Master eras serere Dreier rains REMOTE DU B Band Conversion loss table serren rr eie ne 46 External Mixer se External Mixer Remote control 111 Bandwidth FIM M 70 Depending on sample rate eee 181 Digital data usaste tarro 180 Extension options 70 174 175 Maximum usable oooooooococccnccconooooncccnononnonnnnnnnncnns 70 173 Relationship to sample rate ssssssse 175 SONS 68 BB Power Trigger SOfIKOy sort str erro Er EER rud 64 Bias Gorversiom loss table terrre External Mixer s External Mixer Remote control C Capture qoc E EPT 28 Capture finished SIatus Dit e Capture offset MSRA applications REMOTE iocos erra Red M Capture time see also Measurement time ssesssss 159 cdma2000 BTS MSRA Application coire ton etre cones 22 Center Tre qUenQY PRETI 61 Analog Baseband B71 002 Automatic configuration ds SOftKBy
20. For details see the section Interface Status Information for the optional Digital Base band Interface in the R amp S FSW I Q Analyzer User Manual Return values ConnState Defines whether a device is connected or not 0 No device is connected 1 A device is connected lt DeviceName gt Device ID of the connected device lt SerialNumber gt Serial number of the connected device lt PortName gt Port name used by the connected device Configuring MSRA Measurements lt SampleRate gt Maximum or currently used sample rate of the connected device in Hz depends on the used connection protocol version indica ted by lt SampleRateType gt parameter lt MaxTransferRate gt Maximum data transfer rate of the connected device in Hz lt ConnProtState gt State of the connection protocol which is used to identify the connected device Not Started Has to be Started Started Passed Failed Done lt PRBSTestState gt State of the PRBS test Not Started Has to be Started Started Passed Failed Done lt SampleRateType gt 0 Maximum sample rate is displayed 1 Current sample rate is displayed lt FullScaleLevel gt The level in dBm that should correspond to an I Q sample with the magnitude 1 if transferred from connected device If not available 1 ONAN not a number is returned Example INP DIQ CDEV Result 1 SMW200A 101190 BBMM 1 OUT 100000000 200000000 Passed Passed 1 1 4QNAN Manual operation See C
21. NEW on page 99 INSTrument SELect on page 102 Replace Current Channel The applications selected on this tab are started in the currently displayed channel replacing the current application Remote command INSTrument CREate REPLace on page 100 Using the Sequencer in MSRA Mode When you switch to MSRA mode the Sequencer is automatically activated in continu ous mode Unless it is stopped or you select a different Sequencer mode the R amp S FSW will continuously perform a data acquisition MSRA Master then evaluate the data in the active applications one after the other then repeat the data acquisition and evaluate the new data etc The tabs are updated after each measurement or eval uation This behaviour is identical to Signal and Spectrum Analyzer mode also for Sin gle Sequence or Channel Defined Sequence modes However if you switch the Sequencer off the behaviour of the sweep functions is slightly different to Signal and Spectrum Analyzer mode see also Performing sweeps on page 27 e f continuous sweep is active default and you switch to a different application continuous sweep is aborted This is necessary in order to evaluate the same data in different applications without overwriting the data in the capture buffer Continu ous sweep can be started again as usual e Only the application that is currently displayed when a measurement is performed is updated automatically A new Refresh fun
22. Overview varies depending on the application for detailed descriptions see the corresponding application User Manual If the 1 Q Analyzer is used as an MSRA application the Overview also provides a measurement selection button in order to perform measurements in the frequency and time domain See the R amp S FSW l Q Analyzer and l Q Input User Manual for details The Overview for the MSRA Master provides quick access to the following configura tion dialog boxes listed in the recommended order of processing 1 Input settings See chapter 7 2 Input Source Settings on page 35 2 Amplitude settings See chapter 7 3 Amplitude on page 54 3 Frequency settings See chapter 7 4 Frequency Settings on page 60 4 Optionally trigger settings See chapter 7 5 Trigger Settings on page 61 5 Bandwidth settings See chapter 7 6 Data Acquisition and Bandwidth Settings on page 68 6 Optionally output settings See chapter 7 7 Output Settings on page 76 7 Analysis settings and functions See chapter 8 Analysis on page 81 8 Display configuration See chapter 7 8 Display Configuration on page 78 To configure settings gt Select any button to open the corresponding dialog box For step by step instructions on configuring MSRA measurements see chapter 9 How to Perform Measurements in MSRA Mode on page 83 Preset Channel Select the Preset Channel button in the lower lefthand corner of the Overvi
23. Performing remote erret 154 Procedure si fuper Settings remote ccc etti eet 145 Softkey Status bi cs erect dba tao a ic conecte ux 164 Data format jio 173 BINAY raianta a EE 173 REMOTE MR 161 DC offset Analog Baseband B71 remote control 126 Diagram area Display oci et eei ir C e text 13 Diagram footer information sssrinin anisina 11 Differential input Analog Baseband B71 remote control 124 Analog Baseband B71 sss 51 DiglConf see also R amp S DiglGonf voca 50 Digital Baseband Interface Input settings Input status remote Digital 1 Q Bandwidthis cU ia 180 Enhanced mode 64 180 Input connection information eeseess 49 Input settings tnnt meint rrr ite 48 Sample rates 180 Tiiggerifig iie rettet tette nte 64 Digital input A ee eterne reget Connection information FReSIIIClIOTIS iet rr ener etr ee Digital output A rezone 181 Direct path Inp t cornfig ratioti escocia eren 37 sio 105 Display configuration DOMO aiii coa 78 Display elements MORA vrs ba 10 Drop out time Bi M 66 Duplicating Measurement channel remote ss 99 E Electronic input attenuation sssessssss
24. on page 40 SENSe MIXer RFOVerrange STATe lt State gt If enabled the band limits are extended beyond RF Start and RF Stop due to the capabilities of the used harmonics Parameters lt State gt ON OFF RST OFF Manual operation See RF Overrange on page 40 Conversion Loss Table Settings The following settings are required to configure and manage conversion loss tables ISENSeTCORRSclion C VIBANLD cn ottenere ect tans ee cen at eerta 114 SENSe CORR amp ction CVL BIAS uiri cruel iiu a DRUSI MP A 115 SENSeJCORRectionm CVEICATAIOg cis tato IRR RR RR AER RES R AR RR RR Re AIRES dA ARASE 115 SENSE CORRECCION CYL CEBA cita il anam ttu real bea paa e e meret aaa 115 SENSe CORRection CVL COMMAnt 22i 1a 1c onn dia 116 SENSe TCORRectiom CMEDATA cuina 116 SENSe ICORRBection CVE HARMORIG 2520016 erret na e trung etae daeedeenscngedesevevandvendss 117 SENSeTCORRectioh C VEMIXGEI 1 cate acted ba Een eet da eek teed en dx eb ax de rod ua 117 SENSe CORRection CVE PORTS iacit rede cedent Aa cata 117 SENSedJCORRPecIOm GO VEESElL eel rte erepto dee ey HR eph n excede qe inen enn s 118 SENSeTCORRection CVLE SNUMDBOr aeta ra ace idea 118 SENSe CORRection CVL BAND Type This command defines the waveguide band for which the conversion loss table is to be used This setting is checked against the current mixer setting before the table can be assigned to the range Before this command can be
25. on page 63 See External Trigger 1 2 3 on page 63 See Baseband Power on page 64 See Digital I O on page 64 See IF Power on page 64 See RF Power on page 65 See Q Power on page 65 See Power Sensor on page 65 TRIGger SEQuence TIME RINTerval Interval This command defines the repetition interval for the time trigger Parameters Interval 2 0 ms to 5000 Range 2ms to 5000s RST 1 0s Example TRIG SOUR TIME Selects the time trigger input for triggering TRIG TIME RINT 50 The sweep starts every 50 s Manual operation See Repetition Interval on page 66 11 4 2 2 Configuring the Trigger Output The following commands are required to send the trigger signal to one of the variable TRIGGER INPUT OUTPUT connectors on the R amp S FSW OUTPut TRIGgersport Dl Rec tirar ode 143 QUTPut TRIGgerepont LEVEL nre peperit iia 144 OUITPut PRIGSersport OT Ye icri creta cirea dtt ctrca e a sette euren 144 OUTPut TRIGSer port PULSeMMediate 5 1 a1 erdt ema sad ago eR ava cn cae ava 145 OUTPut TRIGgersport PUESeEENGHh er o Rita Foto tee teneor gence 145 OUTPut TRIGger lt port gt DIRection Direction This command selects the trigger direction for trigger ports that serve as an input as well as an output Suffix port Selects the used trigger port 2 trigger port 2 front panel 3 trigger port 3 rear panel Configuring
26. 500 Parameters Impedance 50 75 RST 50 Q Example INP IMP 75 Usage SCPI confirmed Manual operation See Impedance on page 36 INPut SELect lt Source gt This command selects the signal source for measurements i e it defines which con nector is used to input data to the R amp S FSW Parameters Source RF Radio Frequency RF INPUT connector RST RF Manual operation See Radio Frequency State on page 36 See Digital l Q Input State on page 49 See Analog Baseband Input State on page 51 Using External Mixers The commands required to work with external mixers in a remote environment are described here Note that these commands require the R amp S FSW B21 option to be installed and an external mixer to be connected to the front panel of the R amp S FSW In MSRA mode external mixers are not supported e Basic Settings see cr d Pe Ho c dd d c d He 107 Mixer Settings er E a aa KRKRSIRKMMNR 109 e Conversion Loss Table Settings eee neenon tenet kot bin 114 e Programming Example Working with an External Mixer sessss 118 Basic Settings The basic settings concern general usage of an external mixer EISE C EA psina nkara a inaipa aai daadaa a NAASE 108 SENSe IMIXSITBIAS BIGE ice e A a eremi 108 SENSe MIXer BIASLOW eccentric 108 Configuring MSRA Measurements PENSE IMIX S LOR OWEN qe T ad aaa wade si 108 SENSe MINGR SIGNS i o
27. 54 TA Frequency Settings eiie iniit eto nn otras innnan ENS ANE NENN SANANE rias 60 FEED CIE ul cem 61 7 6 Data Acquisition and Bandwidth Settings eeeeeeneeennnn 68 Laelium ides 76 7 8 Display Configuration iieri crac a mapas na aE Ras panna nR Rida 78 7 9 Automatic Settings eiie renis entis nhan i autera sesenta kae si ne TAE 78 10 11 11 1 11 2 11 3 11 4 11 5 11 6 11 7 11 8 11 9 11 10 A 1 A 2 A 3 A 4 Li mw 81 Configuring the Analysis Line eeeeeeeeeeeeeerennnneneenen nennen nnn nnns 81 How to Perform Measurements in MSRA Mode 83 Measurement Example Analyzing MSR Signals 86 Remote Commands to Perform Measurements in MSRA Mode 93 INTTOUCTION PH 93 Common Sufflxes niit irn cues sinn tarn tiu ra eves saves SERRE caneeecen is endenvessevsecnndscesed 98 Activating MSRA Measurements eese eene nnne nnne nnn nine nnne 99 Configuring MSRA Measurements eese nnne nennen nennen 104 Capturing Data and Performing Sweeps eene 154 Retrieving Results iccirco rina icona AR VNESE NANOVO NAANA NARAS AN RANNAS 160 Quer
28. Configuring the Vertical Axis Amplitude Scaling The following commands are required to configure the amplitude and vertical axis set tings in a remote environment e JAnmplitude SOUNDS 130 e Configuring the Aena 130 e Configuring a Preamplifier cessisse eene 132 e Scaling tlie Y SAXIS O 133 Configuring MSRA Measurements Amplitude Settings Useful commands for amplitude configuration described elsewhere e SENSe ADJust LEVel on page 154 Remote commands exclusive to amplitude configuration CALCulate n MARKer m FUNCtion REFerence essen 130 DISPlay WINDow n TRACe t Y SCALe RLEVel esee 130 DISPlay WINDow n TRACe t Y SCALe RLEVel OFFSet eeesesesseses 130 CALCulate lt n gt MARKer lt m gt FUNCtion REFerence This command matches the reference level to the power level of a marker If you use the command in combination with a delta marker that delta marker is turned into a normal marker Example CALC MARK2 FUNC REF Sets the reference level to the level of marker 2 Usage Event DISPlay WINDow lt n gt TRACe lt t gt Y SCALe RLEVel lt ReferenceLevel gt This command defines the reference level for all traces lt t gt is irrelevant Example DISP TRAC Y RLEV 60dBm Usage SCPI confirmed Manual operation See Reference Level on page 54 DISPlay WINDow lt n gt TRACe lt t gt
29. Free Run EXTernal Trigger signal from the TRIGGER INPUT connector EXT2 Trigger signal from the 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 RFPower First intermediate frequency IFPower Second intermediate frequency IQPower Magnitude of sampled I Q data For applications that process l Q data such as the I Q Analyzer or optional applications BBPower Baseband power for digital input via the optional Digital Base band Interface Baseband power for digital input via the optional Digital Base band Interface or the optional Analog Baseband interface PSEN External power sensor GPO GP1 GP2 GP3 GP4 GP5 For applications that process l Q data such as the I Q Analyzer or optional applications and only if the optional Digital Base band Interface is available Defines triggering of the measurement directly via the LVDS connector The parameter specifies which general purpose bit 0 to 5 will provide the trigger data The assignment of the general purpose bits used by the Digital IQ trigger to the LVDS connector pins is provided in Digital 1 Q on page 64 RST IMMediate Example TRIG SOUR EXT Selects the external trigger input as source of the trigger signal Configuring MSRA Measurements Manual operation See Trigger Source on page 63 See Free Run
30. Further trigger parameters are available for the connector Remote command OUTPut TRIGger lt port gt LEVel on page 144 OUTPut TRIGger lt port gt DIRection on page 143 Output Type 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 T 6 7 6 1 Data Acquisition and Bandwidth Settings 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 144 Level Output Type 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 144 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 145 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
31. I Q Analyzer or optional applica tions and only if the optional Digital Baseband Interface is available Defines triggering of the measurement directly via the LVDS connector In the selection list you must specify which general purpose bit GPO to GP5 will provide the trigger data Note If the Digital l Q enhanced mode is used i e the connected device supports transfer rates up to 200 Msps only the general purpose bits GPO and GP1 are available as a Digital 1 Q trigger source The following table describes the assignment of the general purpose bits to the LVDS connector pins Table 7 1 Assignment of general purpose bits to LVDS connector pins Bit LVDS pin GPO SDATAA P Trigger1 GP1 SDATA4 P Trigger2 GP2 SDATAO P Reserve1 GP3 SDATAA P Reserve2 GP4 SDATAO P Marker1 GP5 SDATAA P Marker2 not available for Digital l Q enhanced mode Remote command TRIG SOUR GPO see TRIGger SEQuence SOURce on page 141 IF Power Trigger Source Trigger Source The R amp S FSW starts capturing data as soon as the trigger level is exceeded around the third intermediate frequency R amp S FSW MSRA Configuration S r m t For frequency sweeps the third IF represents the start frequency The trigger band width at the third IF depends on the RBW and sweep type For measurements on a fixed
32. 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 automatically This setting can only be adjusted in the MSRA Master not in the applications Parameters Threshold Range 0 dB to 200 dB RST 1dB Default unit dB Example SENS ADJ CONF HYST UPP 2 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 79 SENSe ADJust 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 the 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 79 11 5 Capturing Data and Performing Sweeps The only true measurement in MSRA mode in which l Q data from the input signal is captured and stored is performed by the MSRA Master This data acquisition is per formed as in the I Q Analyzer application i e a specified frequenc
33. MHZ TRAC 1Q WBAN MBW Result if R amp S FSW B160 B320 is active 160000000 Example TRAC TIO WBAN MBW 82 MHZ TRAC 10 WBAN MBW Result if R amp S FSW B500 is active 500000000 Manual operation See Maximum Bandwidth on page 70 11 4 4 Adjusting Settings Automatically The following remote commands are required to adjust settings automatically in a remote environment These commands are only available for the MSRA Master chan nel The tasks for manual operation are described in chapter 7 9 Automatic Settings on page 78 Configuring MSRA Measurements Settings related to data acquisition measurement time hysteresis can only be adjus ted in the MSRA Master not in the applications SENSeJAD JUAU eco entem Mo ac Nana E cra 152 SENSe ADJust CONFigure DURation eese nenne rere rni 152 SENSe ADJust CONFIigure DURation MODE 122 2 cire tte tane zu aet necis 152 SENSe AD Just F REGUeRGYy a otra reete Rote ph eoe Ese Rae et ex iP QM CU eR eae 153 SENSe ADJust CONFigure HYSTeresis LOWer ssssssssesenenenenene eene 153 SENSe ADJust CONFigure HYSTeresis UPPer eee eee secus se tek a ann na seen 154 SENSE TADJUSECEVEl oca ciini race deett et eeu a eesti e ced 154 SENSe ADJust ALL This command initiates a measurement to determine and set the ideal settings for the current task automatically only once for the current measurement This includes e R
34. MHz to 600 MHz 220 MSamples A 3 3 R amp S FSW without additional bandwidth extension options sample rate 100 Hz 600 MHz maximum l Q bandwidth 10 MHz Table 1 2 Maximum I Q bandwidth Sample rate Maximum I Q bandwidth 100 Hz to 10 MHz proportional up to maximum 10 MHz 10 MHz to 600 MHz 10 MHz A 3 4 R amp S FSW with options B28 or U28 I Q Bandwidth Extension sample rate 100 Hz 600 MHz maximum bandwidth 28 MHz Sample rate Maximum I Q bandwidth 100 Hz to 35 MHz proportional up to maximum 28 MHz 35 MHz to 600 MHz 28 MHz A 3 5 R amp S FSW with option B40 or U40 I Q Bandwidth Extension sample rate 100 Hz 600 MHz maximum bandwidth 40 MHz Sample rate Maximum I Q bandwidth 100 Hz to 50 MHz proportional up to maximum 40 MHz 50 MHz to 600 MHz 40 MHz A 3 6 R amp S FSW with option B80 or U80 I Q Bandwidth Extension sample rate 100 Hz 600 MHz maximum bandwidth 80 MHz R amp S FSW MSRA Annex N Sample rate Maximum l Q bandwidth 100 Hz to 100 MHz proportional up to maximum 80 MHz 100 MHz to 600 MHz 80 MHz A 3 7 R amp S FSW with activated option B160 or U160 I Q Bandwidth Exten sion sample rate 100 Hz 600 MHz maximum bandwidth 160 MHz Sample rate Maximum l Q bandwidth 100 Hz to 200 MHz proportional up to maximum 160 MHz 200 MHz to 600 MHz 160 MHz Restricting the maximum bandwidth manually
35. OUTPut TRIGger lt port gt DIRection on page 143 Output Type 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 144 Level Output Type 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 144 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 145 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 ind
36. SElect asar rotatoria coxa era ricino cositas 102 OUTPut TRIGgersports DIR amp CIOH ertt eere a rre n rne eter nn nt 143 OUTPut TRIGger lt port EVO lisina iter nr eth rh irre a re ern e FER RR aec oda 144 OUTPut TiIGgersporte ONY PRS corso inc rpg p II esu restes Efe Se ees a Y Fux ee Yes TAO 144 OUTPut TRIGgersport PULSe IMMediate retreat rrt rehenes 145 OUTPut TRIGger lt port gt PULSe LENGth STATUS OPERation CONDITION codusidirasaa nina ra STATUs OPERalion ENABIe ici ela 165 STATUS OPERation NT RANSON is circa 166 STATUS OPERALUON PTRAMSINON 2 scitote tato nadia 166 STATus OPERaltioriBEVENIJ creen eret cee eee beaut aan ave ode dedu 166 oSYSTemiPRESSECEIANnel EXEGCuUle ciet irre teer mes erre tO Ec dee Ee erc c calla 103 SYSTem PRESet COMPatible SYSTEM SEQUCNCEM CD TRACIA BWI D titi x too iia TRAC SHO DATA FORMAL TRAGe IQ IDATAMEMOGTy certet nt E crt nuit Anan yen acti t tpa eee ERU po pred d 162 THRAG SIO DATA casos ER 161 TRACIO RLENGI m 149 TRACe IQ SRATe ES TRAGEAQ TRPISAMPIC D HH 149 TRAC eOAWBANG MBW VID Tel E c TRAGe IQIWBANGESTATS ceat eru ec etae ver e tere Dy rtp daniel TRIGger SEQuence BBPower HOLDoff TRIGE SEQUENCE sO TIME vr e
37. 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 Send Trigger on page 68 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 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 Pulse Length on page 68 Configuring Data Acquisition The following commands are required to configure the actual data acquisition Configuring data acquisition is only possible for the MSRA Master channel In MSRA application channels these commands define the analysis interval see chapter 11 9 Commands Specific to MSRA Applications on page 167 Be sure to select the cor rect measurement channel before executing these commands SENSe IO BANDWidth BWIDthiMOD Bei 22 2 2 2 1 rtt receive ete oae tco ree Cond ea 146 SENSe IQ BANDwidIhlBWIDth RESol ftlon 2 2 2 iocur eoe ex retener erase 146 SEN Se UIQ IEF EE eo risp Em 146 SENSe IQ FFT LENGth nne ttn t ttd da d ta tata ta tad 147 SENSeslIG EF T2WINDOWEIEENGIUn 5 23 2 2222 01 corre Lnio eee e oce De EOD sor IR Ai 147 SENSeIQ FFT WINBDOW OVERIAp occitano i enn 148 SENSeIIGEFFE T WINDOWET YE 2 ii ee cona e n re eter AA eet eer eed 14
38. TRIGger SEQuence SOURce on page 141 I Q Power Trigger Source Trigger Source This trigger source is not available if the optional Digital Baseband Interface or optional Analog Baseband Interface is used for input It is also not available for analysis band widths 2 160 MHz Triggers the measurement when the magnitude of the sampled I Q data exceeds the trigger threshold Remote command TRIG SOUR IQP see TRIGger SEQuence SOURce on page 141 Power Sensor Trigger Source Trigger Source Uses an external power sensor as a trigger source This option is only available if a power sensor is connected and configured Note For R amp S power sensors the Gate Mode Lvl is not supported The signal sent by these sensors merely reflects the instant the level is first exceeded rather than a time period However only time periods can be used for gating in level mode Thus User Manual 1175 6455 02 14 65 Trigger Settings the trigger impulse from the sensors is not long enough for a fully gated measurement the measurement cannot be completed Remote command TRIG SOUR PSE see TRIGger SEQuence SOURce on page 141 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 EXTernal port on page 139 Repetition Interval Trigger Source Defines the rep
39. This command turns the electronic attenuator on and off Parameters lt State gt 110 ON OFF 1 ON 0 OFF RST 0 Example INP EATT STAT ON Switches the electronic attenuator into the signal path Manual operation See Using Electronic Attenuation on page 56 Configuring a Preamplifier asl ziiiserhicun uc 132 INPUL GAIN VALUE e M 133 INPut GAIN STATe State This command turns the preamplifier on and off It requires the optional preamplifiier hardware Parameters State ON OFF RST OFF Example INP GAIN STAT ON Switches on 30 dB preamplification Configuring MSRA Measurements Usage SCPI confirmed Manual operation See Preamplifier on page 56 INPut GAIN VALue Gain This command selects the gain level if the preamplifier is activated INP GAIN STAT ON see INPut GAIN STATe on page 132 The command requires the additional preamplifier hardware option Parameters Gain 15 dB 30 dB The availability of gain levels depends on the model of the R amp S FSW R amp S FSW8 13 15dB and 30 dB R amp S FSW26 or higher 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 Preamplifier on page 56 Scaling the Y Axis DISPlay WINDow n TRACe t Y SCALe eeessssesesssssss
40. Time Att 15dB Freq 1 0GHz RecLength TRG EXT1 1 Spectrum CF 1 0 GHz Span 25 0 MHz Fig 6 1 MSRA Master indicating covered bandwidth for 4 applications Analysis interval Each application receives an extract of the data from the capture buffer However the individual evaluation methods of the application need not analyze the complete data range Some applications allow you to select a specific part of the data for analysis e g an individual frame burst or pulse or to use an offline trigger that defines an addi tional offset to the capture offset The data range that is actually analyzed is referred to as the analysis interval User Manual 1175 6455 02 14 28 R amp S9 FSW MSRA MSRA Basics O 6 4 The analysis interval is indicated in the window title bar for each evaluation and can be queried via remote control For applications that do not allow you to restrict the evaluation range e g I Q Ana lyzer Analog Demodulation the analysis interval is identical to the application data extract Trigger offset vs capture offset The beginning of the capture buffer is defined by the trigger event and the trigger off set The trigger source is defined by the MSRA Master which means that all channels use the same trigger However each application might need a different trigger offset or a different number of pretrigger samples Instead of a trigger offset the applications define a capture offset The capture offse
41. amp S FSW Getting Started manual Front Rear Panel View chapters How to provide trigger signals as output is described in detail in the R amp S FSW User Manual IF Video Output IF Wide Out Frequency Noise Source Trigger 2 Trigger 3 Noise SOUFGB eri ORARE AA Aida 76 dins c 76 Bee T MS PEL DLL 77 PERI Uu ote etu Ec DIMUS UL DELE 77 A T 77 lk No NOR 77 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 137 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 Output Settings 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 Trigger input parameters are available in the Trigger dialog box 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 144
42. an icon El or Bl is displayed next to the chan nel label However you will not be prevented from configuring contradictory settings Importing and Exporting I Q Data Note that as opposed to the Signal and Spectrum Analyzer mode the l Q data to be evaluated in MSRA mode cannot be imported to the R amp S FSW However the captured 1 Q data from the MSRA Master can be exported for further analysis in external appli cations For details on exporting I Q data see the R amp S FSW l Q Analyzer User Manual Configuring an I Q Analyzer as an MSRA application Access MODE gt Multi Standard Radio Analyzer tab gt Select Meas In principle the I Q Analyzer in MSRA mode is configured as in Signal and Spectrum Analyzer mode However the I Q Analyzer application not Master in MSRA mode can also perform measurements on the captured l Q data in the time and frequency domain see also chapter 6 5 Measurements in the Time and Frequency Domain on page 30 You can select which type of measurement is to be performed conventional I Q data analy sis or a time or frequency domain measurement Configuration Overview The common measurements as in the Spectrum application are available In addition IQ Analyzer is provided under Basic Measurements to return to the default 1 Q Analysis functions The time and frequency domain measurements and the required settings are descri bed in detail in the R amp S FSW User Manual Further
43. and are only part of the syntax because of SCPI compli ance 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 Introduction 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 ZOOM STATe ON enables the zoom in window 1 no suffix DISPlay WINDow4 ZOOM STATe ON enables the zoom in window 4 11 1 5 Alternative Keywords A vertical stroke indicates alternatives for a specific keyword You can use both key words to the same effect Example SENSe BANDwidth BWIDth RESolution In the short form without optional keywords BAND 1MHZ would have the same effect as BWID 1MHZ 11 1 6 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 Nutnerio Valles ostia EE et Debo Pepe dd 96 BOCA UT 97 Character Data RETO 98 Character SUNS eeraa enit ted e adag o et d a EENE 98
44. aurin rio 01 i 61 Channel defined Sequencer Ec M 25 Channels NEW ice 24 Operating modes 4 19 Replacing meret tte rere dons 24 Clock rate DR a vs a aeae A EEA 180 Closing Channels remote sirio aeree 100 Configuration MSRAMODE ssis harnassen aa 32 Continue single sweep A a ai a a 75 Continuous Sequencer ici 25 Continuous sweep SOfIKGy rnit ee E rer Hee ec 74 Conventions SCGPlicombarnds 5 2222 rer etae ceti err 94 Conversion loss External Mixer Remote control m Conversion loss tables rrr rentes 44 Available remote control Band remote control Bias remote control 24 115 COMAQUIING ET 44 CHE AUG miii di 45 Deleting remote control ut 145 External MIX6E ii iieri entree regnet 41 External Mixer Remote control a5 119 Harmonic order remote control 117 Importing External Mixer 2 45 Managing ee 43 Mixer type remote control 117 Saving External Mixer 48 Selecting remote control 118 Shifting values External Mixer 48 Values External Mixer eee 47 Copying Measurement channel remote s 99 Coupling Input remote e peret b e es 105 D Data acquisition coe ect ede e N On iR Analysis interval j BASICS unitaria
45. bandwidth to a maximum of 160 MHz The bandwidth extension option for 320 MHz is deactivated Not available or required if bandwidth extension option for 500 MHz is installed Remote command TRACe IQ WBANd STATe on page 150 TRACe IQ WBANd MBWIDTH on page 151 Data Acquisition and Bandwidth Settings Meas Time Defines the I Q acquisition time By default the measurement time is calculated as the number of I Q samples Record Length divided by the sample rate If you change the measurement time the Record Length is automatically changed as well For details on the maximum number of samples see also chapter A 3 Sample Rate and Maximum Usable I Q Bandwidth for RF Input on page 173 Remote command SENSe SWEep TIME on page 159 Record Length Defines the number of I Q samples to record By default the number of sweep points is used The record length is calculated as the measurement time multiplied by the sam ple rate If you change the record length the Meas Time is automatically changed as well Note For the l Q vector result display the number of I Q samples to record Record Length must be identical to the number of trace points to be displayed Sweep Points Thus the sweep points are not editable for this result display If the Record Length is edited the sweep points are adapted automatically For record lengths outside the valid range of sweep points i e less than 101 points or more th
46. by all active applications for example after a new sweep was performed while the Sequencer was off Note To update only the displays in the currently active application use the Refresh function in the Sweep menu for that application see Refresh MSRA only on page 74 For details on the MSRA operating mode see the R amp S FSW MSRA User Manual For details on the MSRT operating mode see the R amp S FSW Real Time Spectrum Application and MSRT Operating Mode User Manual Remote command INITiate lt n gt SEQuencer REFResh ALL on page 159 Configuration 6 MSRA Basics Some background knowledge on basic terms and principles used in MSRA operating mode is provided here for a better understanding of the required configuration settings 6 1 Configuration Master parameters In MSRA mode only the MSRA Master performs a data acquisition Thus all parame ters that determine how the l Q data is captured from the I Q channel can only be con figured in the MSRA Master tab In all application tabs these settings are deactivated or have a different meaning Typical master parameters include e Sample rate e Record length e Bandwidth Center frequency e Reference level Trigger settings External reference Impedance preamplification attenuation Channel specific parameters Each application however can define all parameters concerning analysis individually Typical channel specific parameters include
47. clock rate of the R amp S FSW at the output connector is 142 9 MHz using the Digital I Q enhanced mode a data transfer rate of up to 200 Msps is possible Input sample rate ISR the sample rate of the useful data provided by the con nected instrument to the digital input User Output Sample rate SR the sample rate that is defined by the user e g in the Data Aquisition dialog box in the I Q Analyzer application and which is used as the basis for analysis or sent to the digital output e Usable I Q Analysis bandwidth the bandwidth range in which the signal remains unchanged by the digital decimation filter and thus remains undistorted this range can be used for accurate analysis by the R amp S FSW Slow I Q measurements When captured data is transferred and further processed with a slower rate than the rate with which the signal was sampled this is referred to as a Slow I Q measurement For example assume an analog signal is sampled by an oscilloscope with a sample rate of 10 GHz This data is stored in a memory temporarily and then transferred to the R amp S FSW via the Digital I Q Interface with a sample rate of 100 Msps Then the input sample rate on the R amp S FSW must be set to 10 GHz so the signal is displayed cor rectly Digital I Q enhanced mode An enhanced mode for processing data from the Digital Baseband Interface is availa ble This enhanced mode enables data transfer via the Digital I Q interface with a d
48. configuration of the I Q Analyzer application is described in the R amp S FSW I Q Analyzer and l Q Input User Manual The following chapters describe configuration for the MSRA Master e Configuration Overview nennen nnn nrtet enn nnns 33 e Juput Souco SONGS ione orte cde recedet acta 35 IE uds IE 54 e Fregusncy SEIOS ei 60 e THOJE SENGS ces ceder oed rende Rd erret onte piter ente deb o nd ed eau ee eaae 61 e Data Acquisition and Bandwidth Settings 68 AU ecu cem 76 e Display Conflgutatioric ica renti Renner CER artt ERR ia ener e RH 78 e Anomal OSUNA A Ee eR xe iene 78 Configuration Overview Access all menus Throughout the measurement channel configuration an overview of the most important currently defined settings is provided in the Overview Overviews 0 00 dm varies In AR Esan iI DE A IQ Analyzer Ref Level Level Offset Center Freq Offset Freq Offset E Trigger Gate Dig B8 Out Sample Rate Trigger Out Moos Time Record Length Fig 7 1 Configuration Overview for MSRA Master 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 Configuration Overview The
49. following step by step instructions demonstrate how to perform a measurement in MSRA mode How to capture I Q data in MSRA mode 1 Press the MODE key and select the MSRA operating mode Confirm the message 2 Select the Overview softkey to display the Overview for an MSRA measure ment 3 Select the Input button to select the input signal source 4 Select the Amplitude button to define the attenuation reference level or other set tings that affect the input signal s amplitude and scaling 5 Select the Frequency button to define the input signal s center frequency 6 Optionally select the Trigger button and define a trigger for data acquisition for example an IQ Power trigger to start capturing data only when a specific power is exceeded 7 Select the Bandwidth button and define the bandwidth parameters for data acqui sition e Sample rate or Analysis Bandwidth the span of the input signal to be cap tured for analysis or the rate at which samples are captured both values are correlated e Optionally if a bandwidth extension gt 160 MHz is installed the Maximum Bandwidth depending on whether you require a larger bandwidth or fewer spurious emissions e Measurement Time how long the data is to be captured e Record Length the number of samples to be captured also defined by sam ple rate and measurement time 8 If necessary select the Display Config button and select other displa
50. 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 145 Data Acquisition and Bandwidth Settings How data is to be acquired is configured in the Bandwidth dialog box e Data Poesie me E 68 Sweep SOMOS EUER 73 Data Acquisition Access Overview gt Bandwidth or MEAS CONFIG gt Data Acquisition The data acquisition settings define which parts of the input signal are captured for fur ther evaluation in the applications They are configured in the Data Acquisition tab of the Bandwidth dialog box Data Acquisition and Bandwidth Settings iMieses 82 Spectrum gt TD SCDMA BTS 4 IQ Analyzer Data Acquisition Sweep Data Acquisition i Iv Advanced Fourier Transformation Params Sample Rate Transformation Analysis Bandwidth Algorithm Averaging ABW FFT Length 4096 Maximum Bandwidth AAN Flattop amplitude acc Window Overlap 0 75 Meas Time Window Length 4096 Record Length 5 Dd Visualization Swap I Q Frequency Resolution RBW Fig 7 2 Data acquisition settings with advanced FFT parameters Configuring data acquisition is only possible for the MSRA Master channel In I Q Ana o lyzer application channels these settings define th
51. is activated without a prompt For more information see the R amp S FSW I Q Analyzer and l Q Input User Manual Remote command CALibration AIQ HATiming STATe on page 126 Center Frequency Defines the center frequency for analog baseband input For real type baseband input I or Q only the center frequency is always O Hz Note If the analysis bandwidth to either side of the defined center frequency exceeds the minimum frequency 0 Hz or the maximum frequency 40 MHz 80 MHz an error is displayed In this case adjust the center frequency or the analysis bandwidth For details on frequency ranges and the analysis bandwidth see the R amp S FSW I Q Analyzer and l Q Input User Manual Remote command SENSe FREQuency CENTer on page 135 7 2 5 Probe Settings Probes are configured in a separate tab on the Input dialog box which is displayed when you select the INPUT OUTPUT key and then Input Source Config inpet M 0 00 dam Freq 13 25 GHz Channel 0 3 Code Power inp Y Input Source Probe I Name Serial Number Part Number Type Att 10dB Slot 0 3 Channel Type Probes RT ZD10 201241 1410 4715 02 Differential Common Mode Offset 10 0 v Common Settings Microbutton Action Input Source Settings Subtype 0 1 m Not Connected For each possible probe connector Baseband Input I Baseband Input Q the detec ted type of probe if any is displayed The following information is provi
52. is now named KA Configuring MSRA Measurements SENSe MIXer HARMonic HIGH STATe State This command specifies whether a second high harmonic is to be used to cover the band s frequency range Parameters State ON OFF RST OFF Example MIX HARM HIGH STAT ON Manual operation See Range 1 2 on page 40 SENSe MIXer HARMonic HIGH VALue lt HarmOrder gt This command specifies the harmonic order to be used for the high second range Parameters lt HarmOrder numeric value Range 2 to 61 USER band for other bands see band definition Example MIX HARM HIGH 2 Manual operation See Harmonic Order on page 41 SENSe MIXer HARMonic TYPE lt OddEven gt This command specifies whether the harmonic order to be used should be odd even or both Which harmonics are supported depends on the mixer type Parameters lt OddEven gt ODD EVEN EODD RST EVEN Example MIX HARM TYPE ODD Manual operation See Harmonic Type on page 41 SENSe MIXer HARMonic LOW lt HarmOrder gt This command specifies the harmonic order to be used for the low first range Parameters lt HarmOrder gt numeric value Range 2 to 61 USER band for other bands see band definition RST 2 for band F Example MIX HARM 3 Manual operation See Harmonic Order on page 41 Configuring MSRA Measurements SENSe MIXer LOSS HIGH Average This command defines the average conversion loss to b
53. length for the acquired l Q data Increasing the record length also increases the measurement time Note Alternatively you can define the measurement time using the SENS SWE TIME command Parameters lt NoOfSamples gt Number of samples to record For digital input via the Digital Baseband Interface R amp S FSW B17 the valid number of samples is described in chapter A 4 Sample Rates and Bandwidths for Digital I Q Data on page 180 RST 1001 Example TRAC IQ RLEN 256 Manual operation See Record Length on page 71 TRACe IQ SRATe lt SampleRate gt This command sets the final user sample rate for the acquired I Q data Thus the user sample rate can be modified without affecting the actual data capturing settings on the R amp S FSW Note The smaller the user sample rate the smaller the usable l Q bandwidth see chapter A 3 Sample Rate and Maximum Usable I Q Bandwidth for RF Input on page 173 In order to ensure a minimum usable l Q bandwidth use the TRACe 10 WBANd MBWIDTH on page 151 command Parameters lt SampleRate gt The valid sample rates are described in chapter A 3 Sample Rate and Maximum Usable I Q Bandwidth for RF Input on page 173 RST 32 MHz Manual operation See Sample Rate on page 69 TRACe IQ TPISample This command queries the time offset between the sample start and the trigger event trigger point in sample TPIS Since the R amp S FSW usually s
54. n gt TRACe lt t gt Y SCALe AUTO ONC Esiri isi ninaa i akaa ENa senis nnne 133 DISPlay WINDow n TRACe t Y SCALe MODE sssssssssssssssseeeeenennr ener tette tenni 134 DISPlay WINDow n TRACe t Y SCALe PDlVision esses 134 DISPlayEWINDowsn TRAGCest Y SCALe RLEEVeol 2 2 tu inerte tane cobro iib inse 130 DISPlay WINDow n TRACe t Y SCALe RLEVel OFFSet sse 130 DISPlay WINDow n TRACe t Y SCALe RPOSition essent 134 laesi Bap e ia inci da INGmate lt n gt CONMEOAS rca te sec cae cea tonto pino ines ca sac E sirios noia INITiatesn gt CONTINUOUS es idit a ares alee ra recreated INITlatesms REER Siinne er ee Eti bier ne iin a cet race eu Edere ee ees en cr de IS Rr Yd INITiate lt n gt SEQuencer ABORt INITiate ns SEQuencerIMMediale tpe rte tt rte rp pce ace cue dert ug 157 INITiatesmz SEQUOnceE MODE eere cater Aa 158 INiiate n gt SEQuencer REFResh ALL corso eo aee egere n EN PX Foie tcr kPa etu nempe ehe ne 159 INITiate n IMMedli te rne rtr tent rrt re rent n rer n re neces INPut AT TentaltiOlt eoo iced ere erepto ee ze caveto E ce acude oi tere EAN EE eee sa E Foto E nio MIN i igi WHITE MIO EA TO Pe INPut ATTenuation PROTection RESet INPUT CONNECCION E INPUT GOW PIU Girne E EE AE E S ATENEO AAEN EEE NPU DIQ CD EV ICG mrss EEEE EEEE e to INPut DIQ RANGe COUPling IN
55. on pressing the micro button RST RSINgle See Microbutton Action on page 53 SENSe PROBe lt p gt SETup NAME Queries the name of the probe Suffix lt p gt Return values lt Name gt Usage 11213 Selects the connector 1 Baseband Input 2 Baseband Input Q 3 RF currently not supported use 1 with RF Input Connec tor setting Baseband Input I Name string Query only 11 4 1 6 Configuring MSRA Measurements SENSe PROBe lt p gt SETup STATe Queries if the probe at the specified connector is active detected or not active not detected To switch the probe on i e activate input from the connector use INP SEL AIQ see INPut SELect on page 107 Suffix lt p gt Return values lt State gt Usage 11213 Selects the connector 1 Baseband Input 2 Baseband Input Q 3 RF currently not supported use 1 with RF Input Connec tor setting Baseband Input I DETected NDETected RST NDETected Query only SENSe PROBe lt p gt SETup TYPE Queries the type of the probe Suffix lt p gt Return values lt Type gt Usage 11213 Selects the connector 1 Baseband Input 2 Baseband Input Q 3 RF currently not supported use 1 with RF Input Connec tor setting Baseband Input I String containing one of the following values None no probe detected active differential active single ended Query only
56. optimize the reference level further by manually decreasing the attenuation level to the lowest possible value before an overload occurs then decreas ing the reference level in the same way You can change the measurement time for the level measurement if necessary see Changing the Automatic Measurement Time Meastime Manual on page 79 Remote command SENSe ADJust LEVel on page 154 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 152 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 152 SENSe ADJust CONFigure DURation on page 152 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 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 UPPer on page 154 Automatic Settings Lower Level Hy
57. or not the analysis line lies within the analysis interval or not orange AL the line lies within the interval e white AL the line lies within the interval but is not displayed hidden e no AL the line lies outside the interval Restrictions for Applications As mentioned in various contexts before the MSRA applications themselves are identi cal to Signal and Spectrum operating mode however the correlation between applica tions and the MSRA Master require some restrictions Principally you are not restricted User Manual 1175 6455 02 14 29 R amp S FSW MSRA MSRA Basics e in setting parameters However if any contradictions occur between the configured capture settings and the analysis settings error messages are displayed in the status bar of the application and an icon M is displayed next to the channel label However it does not matter in which order you configure the settings you will not be prevented from doing so In particular the following restrictions apply to applications in MSRA mode e Data acquisition parameters related to data acquisition can only be configured by the MSRA Master Application data only data contained in the capture buffer can be analyzed by the application this implies the following restrictions Center frequency must lie within the captured data bandwidth Measurement time Record length must be smaller than or equal to
58. performed the conversion loss table must be selected see SENSe CORRection CVL SELect on page 118 This command is only available with option B21 External Mixer installed Configuring MSRA Measurements Parameters Band K A KA Q U VJE W F D G Y J USER Standard waveguide band or user defined band Note The band formerly referred to as A is now named KA the input parameter A is still available and refers to the same band as KA For a definition of the frequency range for the pre defined bands see table 11 2 RST F 90 GHz 140 GHz Example CORR CVL SEL LOSS TAB 4 Selects the conversion loss table CORR CVL BAND KA Sets the band to KA 26 5 GHz 40 GHz Manual operation See Band on page 46 SENSe CORRection CVL BIAS lt BiasSetting gt This command defines the bias setting to be used with the conversion loss table Before this command can be performed the conversion loss table must be selected see SENSe CORRection CVL SELect on page 118 This command is only available with option B21 External Mixer installed Parameters lt BiasSetting gt numeric value RST 0 0A Default unit A Example CORR CVL SEL LOSS TAB 4 Selects the conversion loss table CORR CVL BIAS 3A Manual operation See Write to lt CVL table name gt on page 43 See Bias on page 46 SENSe CORRection CVL CATAlog This command queries all available conversion loss tables saved in
59. sequence is performed Then only those channels in continuous sweep mode INIT CONT ON are repeated RST CONTinuous Capturing Data and Performing Sweeps 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 Manual operation See Sequencer Mode on page 25 INITiate lt n gt SEQuencer REFResh ALL This function is only available if the Sequencer is deactivated SYSTem SEQuencer SYST SEQ OFF and only in MSRA mode The data in the capture buffer is re evaluated by all active MSRA applications The suffix lt n gt is irrelevant Example SYST SEQ OFF Deactivates the scheduler INIT CONT OFF Switches to single sweep mode INIT WAI Starts a new data measurement and waits for the end of the sweep INIT SEQ REFR Refreshes the display for all channels Usage Event Manual operation See Refresh All on page 25 SENSe SWEep POINts lt SweepPoints gt This command defines the number of sweep points to analyze after a sweep Example SWE POIN 251 Usage SCPI confirmed Manual operation See Sweep Points on page 74 SENSe SWEep TIME lt Time gt This command defines the sweep time Parameters lt Time gt refer to data sheet RST depends on current settings determined automati cally Example SWE TIME 10s Retrieving
60. signals according to the test specifica tion Frequency sweep measurements are not supported in MSRA mode For details see the R amp S FSW LTE DL User Manual Remote command INST SEL LTE See INSTrument SELect on page 102 Selecting the Operating Mode and Application The default operating mode is Signal and Spectrum Analyzer mode however the pre setting can be changed See the Instrument Setup chapter in the R amp S FSW User Manual Both the operating mode and the application can be selected in the Mode dialog box which is displayed when you press the MODE key Signal Spectrum Analyzer Multi Standard Radio Analyzer New Channel RY Y NI Demod IQ E e aub BTS Replace Current pO Channel 3G FDD BTS 5 3 Using the Sequencer in MSRA Mode To switch the operating mode select the corresponding tab see chapter 2 1 Starting the MSRA operating mode on page 9 To select an application select the corresponding button To deactivate a channel simply close the corresponding tab The remote commands required to perform these tasks are described in chapter 11 3 Activating MSRA Measurements on page 99 New Ghianhel eoe tento a Ne YN Eo SNHEER SENE GENRERARXRR causa anueeanaecakars 24 Replace Curent CSIeli cocer tto ene tada 24 New Channel The applications selected on this tab are started in a new channel i e a new tab in the display Remote command INSTrument CREate
61. 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 an effect the next time the Sequencer activates that channel and only for a chan nel defined sequence In this case a channel in single sweep mode is swept only once by the Sequencer Furthermore the RUN SINGLE key controls the Sequencer not individual 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 For details on the Sequencer see the R amp S FSW User Manual Remote command INITiate lt n gt IMMediate on page 157 Continue Single Sweep After triggering repeats data acquisition without deleting the trace of the last measure ment If the Sequencer is off only the evaluation for the currently displayed measure ment channel is updated 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 lt n gt CONMeas on page 156 User Manual 1175 6455 02 14 75 7 7 0 Output Settings Output Settings Access INPUT OUTPUT gt Output The R amp S FSW can provide output to special connectors for other devices For details on connectors refer to the R
62. starts a new one Example ABOR WAI INIT IMM Aborts the current measurement and starts a new one once abortion has been completed Usage Event SCPI confirmed INITiate lt n gt CONMeas This command restarts a single measurement that has been stopped using ABORt 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 lt n gt IMMediate this command does not reset traces in maxhold minhold or average mode Therefore it can be used to continue measure ments using maxhold or averaging functions Suffix lt n gt irrelevant Usage Event Manual operation See Continue Single Sweep on page 75 INITiate lt n gt CONTinuous lt State gt This command controls the sweep mode for an individual measurement channel Note that in single sweep mode you can synchronize to the end of the measurement with OPC OPC or 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 INITiate lt n gt SEQuencer IMMediate on page 157 the mode i
63. te ionga 419008 1 Channel information bar for the MSRA Master 2 Application data coverage for each active application 3 Result display for MSRA Master for entire capture buffer 4 Channel information bar for application with button to switch to application tab 5 Result display for application for analysis interval User Manual 1175 6455 02 14 12 R amp S FSW MSRA Welcome to the MSRA Operating Mode _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 2 2 2 MSRA Master The MSRA Master is the only channel that captures data It also controls global config uration settings for all applications The MSRA Master channel itself is implemented as an I Q Analyzer application The MSRA Master measurement channel cannot be deleted or replaced The following figure shows the screen elements specific to the MSRA Master MSRA View 32 MSRA Master GSM 3G FDD BTS Ref Level 10 0 m Meas Time 21 ms SRate 20 0 MHz Att 20 dt 1 wiz RecLength 420000 TRG EXT1 2 Magnitude 2 e CF 1 0 GHz 1001 pts 1 Channel information bar for the MSRA Master 2 Data coverage for each active application 3 Analysis line 4 Result display for MSRA Master for entire capture buffer Channel bar information The channel bar shows the firmware and measurement information for data acquisition and global configuration Table 2 1
64. the C r_s instr user cv1 directory on the instrument This command is only available with option B21 External Mixer installed Usage Query only SENSe CORRection CVL CLEAr This command deletes the selected conversion loss table Before this command can be performed the conversion loss table must be selected see SENSe CORRection CVL SELect on page 118 Configuring MSRA Measurements This command is only available with option B21 External Mixer installed Example CORR CVL SEL LOSS TAB 4 Selects the conversion loss table CORR CVL CLE Usage Event Manual operation See Delete Table on page 44 SENSe CORRection CVL COMMent Text This command defines a comment for the conversion loss table Before this command can be performed the conversion loss table must be selected see SENSe CORRection CVL SELect on page 118 This command is only available with option B21 External Mixer installed Parameters Text Example CORR CVL SEL LOSS TAB 4 Selects the conversion loss table CORR CVL COMM Conversion loss table for FS 260 Manual operation See Comment on page 46 SENSe CORRection CVL DATA lt Freq gt lt Level gt This command defines the reference values of the selected conversion loss tables The values are entered as a set of frequency level pairs A maximum of 50 frequency level pairs may be entered Before this command can be performed the convers
65. the R amp S SMx 1 Press the PRESET key to reset the instrument 2 Press the FREQ key and set the frequency to 1 GHz R amp S9FSW MSRA Measurement Example Analyzing MSR Signals 3 Press the LEVEL key and set the level to 0 dBm 4 Press the RF ON OFF key to switch the RF on 5 Press the DIAGRAM key and then select Load Waveform to load the signal data from the provided file From the drive for the USB stick select the file C R_S Instr user Waveforms MSRA GSM WCDMA LTE GSM wv 6 Select the Trigger Marker menu and set Marker1 to Restart Press the ESC key to close the dialog box 7 Switch the State button to ON to activate the waveform Settings on the R amp S FSW 1 Press the PRESET key to preset the R amp S FSW 2 Press the MODE key and select the Multi Standard Radio Analyzer tab Confirm the message to switch to MSRA mode 3 Press the FREQ key and set the Center Frequency to 1 GHz 4 Press the AMPT key and set the reference level to 10 dBm 5 Press the TRIG key and select External Trigger 1 to use the external trigger from the SMx 6 Press the MEAS CONFIG key select the Data Acquisition softkey and set the Sample Rate to 15 MHz Since the R amp S FSW is set to continuous sweep mode by default data acquisition is started automatically The spectrum of the stored MSR signal from the file is dis played in the MSRA Master tab MSRA View 32 MSRA Master Ref Level 10 00 dBm Meas Time
66. the RF input connector or the optional Analog Baseband connector This command is only available if the Analog Baseband interface R amp S FSW B71 is installed and active for input It is not available for the R amp S FSW67 or R amp S FSW85 For more information on the Analog Baseband Interface R amp S FSW B71 see the R amp S FSW I Q Analyzer and l Q Input User Manual Parameters lt ConnType gt RF RF input connector AIQI Analog Baseband connector RST RF Example INP CONN AIQI Selects the analog baseband input Usage SCPI confirmed Manual operation See Input Connector on page 38 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 36 INPut DPATh State Enables or disables the use of the direct path for frequencies close to 0 Hz Configuring MSRA Measurements Parameters State AUTO 1 Default the direct path is used automatically for frequencies close to 0 Hz OFF 0 The analog mixer path is always used RST 1 Example INP DPAT OFF Usage SCPI confirmed Manual operation See Direct Path on page 37 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
67. the conspicuous data range as described in How to analyze the captured l Q data in MSRA applications on page 84 g Refresh the result display for the changed analysis interval Sweep menu Now you can analyze the data in detail to determine the cause of the unusual sig nal behavior How to perform a measurement in the time or frequency domain in MSRA mode 1 Capture l Q data with the MSRA Master as described in How to capture l Q data in MSRA mode on page 83 2 Activate an I Q Analyzer channel as an MSRA application as described in How to analyze the captured l Q data in MSRA applications on page 84 3 In the I Q Analyzer application press the MEAS key 4 From the Select Measurement dialog box select the required measurement in the time or frequency domain 5 Configure the measurement as described in the R amp S FSW User Manual The I Q data captured by the MSRA Master is analyzed in the time or frequency domain according to the selected measurement and result displays 6 To switch back to a conventional I Q analysis press the MEAS key and select the IQ Analyzer measurement 10 Measurement Example Analyzing MSR oignals Using the MSRA you can examine crosstalk between different radio access technolo gies RAT sent out from a base station at the same time Furthermore you can deter mine any signal interference between two or more carriers due to time correlation as you can analyze the same signal
68. the expected maximum reference level Signal levels above this value may not be measured correctly which is indicated by the IF OVLD status display OVLD for analog baseband or digitial baseband input The reference level is also used to scale power diagrams the reference level is then used as the maximum on the y axis Since the hardware of the R amp S FSW is adapted according to this value it is recom mended 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 for input from the External Mixer R amp S FSW B21 the maximum reference level also depends on the conversion loss see the R amp S FSW l Q Analyzer and l Q Input User Manual for details Remote command DISPlay WINDow lt n gt TRACe lt t gt Y SCALe RLEVel on page 130 Amplitude Shifting the Display Offset Reference Level Defines an arithmetic level offset This offset is added to the measured level In some result displays 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 The setting range is 200 dB in 0 01 dB steps Note however that the internal reference level used to adjust the hardware settings to the expected signal opt
69. used with the Signal ID function Remote command SENSe MIXer SIGNal on page 109 Input Source Settings Auto ID Activates or deactivates automatic signal identification Auto ID basically functions like Signal ID However the test and reference sweeps are converted into a single trace by a comparison of maximum peak values of each sweep point The result of this comparison is displayed in trace 3 if Signal ID is active at the same time If Signal ID is not active the result can be displayed in any of the traces 1 to 3 Unwanted mixer products are suppressed in this calculated trace Note that automatic signal identification is only available for measurements that per form frequency sweeps not in vector signal analysis or the I Q Analyzer for instance Remote command SENSe MIXer SIGNal on page 109 Auto ID Threshold Defines the maximum permissible level difference between test sweep and reference Sweep to be corrected during automatic comparison Auto ID on page 43 function The input range is between 0 1 dB and 100 dB Values of about 10 dB i e default set ting generally yield satisfactory results Remote command SENSe MIXer THReshold on page 109 Bias Settings Define the bias current for each range which is required to set the mixer to its optimum operating point It corresponds to the short circuit current The bias current can range from 10 mA to 10 mA The actual bias current is lower b
70. 0 SENSe MIXer FREQuency STOP on page 110 Input Source Settings Handover Freq Defines the frequency at which the mixer switches from one range to the next if two different ranges are selected The handover frequency can be selected freely within the overlapping frequency range Remote command SENSe MIXer FREQuency HANDover on page 110 Band Defines the waveguide band or user defined band to be used by the mixer The start and stop frequencies of the selected band are displayed in the RF Start and RF Stop fields For a definition of the frequency range for the pre defined bands see table 11 2 The mixer settings for the user defined band can be selected freely The frequency range for the user defined band is defined via the harmonics configuration see Range 1 2 on page 40 Remote command SENSe MIXer HARMonic BAND VALue on page 111 RF Overrange If enabled the frequency range is not restricted by the band limits RF Start and RF Stop In this case the full LO range of the selected harmonics is used Remote command SENSe MIXer RFOVerrange STATe on page 114 Preset Band Restores the presettings for the selected band Note changes to the band and mixer settings are maintained even after using the PRESET function This function allows you to restore the original band settings Remote command SENSe MIXer HARMonic BAND PRESet on page 111 Mixer Type The External Mixer
71. 0 MHz Manual operation See Center Frequency Stepsize on page 61 SENSe FREQuency CENTer STEP AUTO lt State gt This command couples or decouples the center frequency step size to the span In time domain zero span measurements the center frequency is coupled to the RBW 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 SENSe FREQuency OFFSet lt Offset gt This command defines a frequency offset If this value is not O Hz the application assumes that the input signal was frequency shifted outside the application All results of type frequency will be corrected for this shift numerically by the application See also Frequency Offset on page 61 Note In MSRA mode the setting command is only available for the MSRA Master For MSRA applications only the query command is available Parameters lt Offset gt Range 100 GHz to 100 GHz RST 0 Hz Example FREQ OFFS 1GHZ Usage SCPI confirmed 11 4 1 8 11 4 2 11 4 2 1 Configuring MSRA Measurements Manual operation See Frequency Offset on page 61 Configuring the Outputs Configuring trigger input output is described in chapter 11 4 2 2 Configuring the Trig ger Output on page 143 DlAGnostic SERVICeNSOUFGB iiidii aeri ipinin naa rete a il Riad 137 DIAGnostic SERVice NSOurce State This comman
72. 20d Freq i0 GMr Reclength 420000 ROW 287k ud 1 Spectrum io che Te0i pts Tanne Ref Level 10 00 dem Meas Tima Sms SRate 1 0 MH SGL Ref Level 10 00 dim Freq 37 5MH Chama 0 236 Power Rd TQ Analyzer a ae 20db freq 9943 MHz Rac Length 5000 3G FOD BTS aw EY CPICH Slot 1 SymbRate uro MEME Tru THs PCI TOOL EVN A te 50 me lal Saker 20 e AMMAN UU A Y n AA mu Ww W IM NS Fig 10 5 MSRA View of MSR signal with time correlations User Manual 1175 6455 02 14 91 R amp S9FSW MSRA Measurement Example Analyzing MSR Signals E The MSRA also allows you to capture very long data sequences In order to examine particular areas of the large l Q memory each MSRA application supports a Capture Offset setting TRIG menu or Data acquisition Signal Capture dialog box In the MSRA Master tab the vertical blue lines in the Magnitude result display indi cate which time interval of the I Q data is analyzed by the individual applications In this example 40 ms are captured the 3GPP FDD BTS application starts analysis at a Cap ture Offset of 20 ms 5 divisions with 4 0 ms div and the I Q Analyzer starts with an offset of 31 5 ms O Capturing and analyzing long data sequences MSRA Vie 1Q Analyzer 3G FDD BTS Ref Level 10 3m Meas Time 40ms SRate 15 0 MHz Att dB 1 0GHz Rec Length 600000 1 Magnitude CF 1 0 GHz 1001 pts SSS ee NN NA ae User Manual 1175 6455 02 14 92 Introduction 11 Remote Comma
73. 8 Q data starting at the beginning of data acquisition TRAC IQ DATA MEM 2048 1024 Reads 1024 I Q data from half of the recorded data TRAC IQ DATA MEM 100 512 Reads 512 1 Q data starting at the trigger point Pretrigger Samples was 100 Usage Query only Querying the Status Registers 11 7 Querying the Status Registers The R amp S FSW I Q Analyzer uses the standard status registers of the R amp S FSW The MSRA operating mode uses an additional bit in the STATus OPERat ion register This register and the commands required to query its contents are described here For details on the common R amp S FSW status registers refer to the description of remote control basics in the R amp S FSW User Manual CD RST does not influence the status registers e STIATus OPERalion Regjlstel ntu eed ler spart ede pe ea ee 164 e Commands to Query the STATus OPERation Register essssss 165 11 7 14 STATus OPERation Register The STATus OPERation register contains information on current activities of the R amp S FSW It also contains information on activities that have been executed since the last read out You can read out the register with STATus OPERation CONDition on page 165 or STATus OPERation EVENt on page 166 Table 11 3 Meaning of the bits used in the STATus OPERation register Bit No Meaning 0 CALibrating This bit is set as long as the ins
74. 8 TRACEAQ BWI e 148 TRAC CG TSBENGIE ait root a iter eR is 149 TRACSIO SRAT 149 TRACEIOTPISampleg 2 xcti A A ideada 149 TRAGSIOIWBANO ESTATE oia ci n 150 TRACEIOQWBANGIMBVWIED TEL coin teu e Ert tn ne paa tada dr dadas ida 151 Configuring MSRA Measurements SENSe IQ BANDwidth BWIDth MODE Mode This command defines how the resolution bandwidth is determined Parameters Mode AUTO MANual FFT AUTO Default The RBW is determined automatically depending on the sample rate and record length MANual The user defined RBW is used and the FFT window length and possibly the sample rate are adapted accordingly The RBW is defined using the SENSe IQ BANDwidth BWIDth RESolution command FFT The RBW is determined by the FFT parameters RST AUTO Example IQ BAND MODE MAN Switches to manual RBW mode IQ BAND RES 120000 Sets the RBW to 120 kHz Usage SCPI confirmed Manual operation See RBW on page 71 SENSe IQ BANDwidth BWIDth RESolution Bandwidth This command defines the resolution bandwidth manually if SENSe 10 BANDwidth BWIDth MODE is set to MAN Defines the resolution bandwidth The available RBW values depend on the sample rate and record length Parameters Bandwidth refer to data sheet RST RBW AUTO mode is used Example IQ BAND MODE MAN Sw
75. 9 INSTTUMentCGREate REP dOB ooi ert ed Sonata ta 100 INSTIumentDELelte dare e eoo estne E se mea ada 100 INTO MEET 5 tette abus de edu dez seed ee tent AAA 101 INS Tr mehb MODE iii eoe ire Po riesco eo Eee reto A oi 102 INSTrumentRENINI aepo eerta rue daa aa 102 INS Trumen SEE ect eoi iode A Rr pae o geb E BERE 102 SYSTem iPRESerCOMPUatlble dite eet Ai nana RR 103 SYSTem PRESet CHANnsI EXEGCute 11 seis osea ecce ie 103 INSTrument CREate DUPLicate This command duplicates the currently selected measurement channel i e creates a new measurement channel of the same type and with the identical measurement set tings The name of the new channel is the same as the copied channel extended by a consecutive number e g IQAnalyzer gt IQAnalyzer2 The channel to be 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 IQAnalyzer INST CRE DUPL Duplicates the channel named IQAnalyzer and creates a new measurement channel named IQAnalyzer2 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 INSTrumen
76. Block Dal eee e He eee recti dE eere iii 98 11 1 6 1 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 com mand uses the basic unit Example with unit SENSe FREQuency CENTer 1GHZ without unit SENSe FREQuency CENTer 1E9 would also set a frequency of 1 GHz 11 1 6 2 Introduction 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 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 Querying numeric values When you query numeric values the system returns a number In case of physical quantities it applies the basic unit e g Hz in case of frequencies The number of dig its after the decimal point depends on the type of numeric value Example Setting SENSe FREQuency CENTer 1GHZ Query SENSe FREQuency CENTer would return 1E9 In some cases numeric values may be returne
77. D 3G FDD BTS R amp S FSW K72 TD SCDMA BTS BTDS TD SCDMA BTS R amp S FSW K76 cdma2000 BTS BC2K CDMA2000 BTS R amp S FSW K82 1xEV DO BTS R amp S FSW BDO 1xEV DO BTS K84 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 Activating MSRA Measurements INSTrument MODE lt OpMode gt The operating mode of the R amp S FSW determines which applications are available and active Whenever you change the operating mode the currently active measurement channels are stored The default operating mode is Signal and Spectrum Analyzer mode however the presetting can be changed Parameters lt OpMode gt SANalyzer Signal and Spectrum Analyzer mode MSRanalyzer Multi Standard Radio Analysis MSRA mode RTMStandard Multi Standard Real Time MSRT mode Only available if one of the the Real Time options are installed RST SAN Example INST MODE MSR Switches to MSRA mode Usage SCPI confirmed 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 t
78. DIVision Value This remote command determines the grid spacing on the Y axis for all diagrams where possible The suffix t is irrelevant Parameters Value numeric value WITHOUT UNIT unit according to the result dis play 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 DISPlay WINDow lt n gt TRACe lt t gt Y SCALe RPOSition Position This command defines the vertical position of the reference level on the display grid for all traces t is irrelevant The R amp S FSW adjusts the scaling of the y axis accordingly Example DISP TRAC Y RPOS 50PCT Usage SCPI confirmed Manual operation See Ref Level Position on page 59 DISPlay WINDow lt n gt TRACe lt t gt Y SPACing lt ScalingType gt This command selects the scaling of the y axis for all traces lt t gt is irrelevant 11 4 1 7 Configuring MSRA Measurements 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 96 Usage SCPI confirmed Manual operation See Scaling on page 59 Frequency SENS amp FREQuesncy CENT oorr dane eats snae ten rni eaa pas er ed Ta 135 SENSE JFISEQUusricy CENTER
79. ENCY S inesse rm ere be re home date exem decus 61 Reference level 2 incen scia da cra cenas canes 55 58 Reference level displayed sessssss 13 Operating mode 2 19 Changing MSRA remote T A ter er aariaa rs 23 iiio 9 Options Bandwidth extension Electronic attenuation High pass filter is Preamplifler ettet ren rette Output Config tatiOti iniciara eet ets Configuration remote s Noise SOUF CO 161i tic Sample rate definition Settings eei Settings remote Trigger Overload RF input remote cosita 104 Overview Config katioti 2 c nter ite etnies 33 P Parameters CONCING xerit ee bets Rea e a de ei s an MSRA applications is MSRA Master Passing between applications 20 Performing MSRA measurement cerent inta 83 Ports External Mixer Remote control 114 Power sensors Trigger mode alizeiqe e a dant TES T Preamplifier Set E DONKEY aia a Preset Bands External Mixer remote control External Mixer Presetting Chameleon aa 34 Probes MicrobuttON s scii rere con dede 53 i i dE 52 Programming examples External Mixer MSRAMOde e Protection RF input remote treten 104 Pulse eere ez tiro pee D sis 21 R RES DICO cari E un Eee 50 R amp S EX IQ BOX Dig eter peer 50
80. Information displayed in the channel bar for the MSRA Master Ref Level Reference level m el Att Mechanical and electronic RF attenuation Ref Offset Reference level offset Freq Center frequency AQT Defined measurement time i e the duration of data acquisition to the cap ture buffer Rec Length Defined record length number of samples to capture SRate Defined sample rate for data acquisition RBW Spectrum evaluation only Resolution bandwidth calculated from the sample rate and record length mm gt aa User Manual 1175 6455 02 14 13 R amp S FSW MSRA Welcome to the MSRA Operating Mode 2 2 3 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 dis played only when applicable for the current measurement For details see the R amp S FSW Getting Started manual Data coverage for each active application Each application obtains an extract of the data captured by the MSRA Master see also chapter 6 3 Multi Standard Analysis on page 28 Generally if a signal contains data channels for multiple standards the individual applications are used to analyze the channel for the corresponding standard Thus it is of interest to know which appli cation is analyzing which part of the captu
81. Lscale AUTO on page 125 Parameters lt PeakVoltage gt 0 25V 0 5V 1V 2V Peak voltage level at the connector For probes the possible full scale values are adapted according to the probe s attenuation and maximum allowed power RST 1V Example INP IQ FULL 0 5V Manual operation See Full Scale Level Mode Value on page 58 INPut IQ TYPE lt DataType gt This command defines the format of the input signal Configuring MSRA Measurements Parameters lt DataType gt lIQ 1 Q IQ The input signal is filtered and resampled to the sample rate of the application Two input channels are required for each input signal one for the in phase component and one for the quadrature compo nent l The in phase component of the input signal is filtered and resampled to the sample rate of the application If the center fre quency is not 0 the in phase component of the input signal is down converted first Low IF I Q The quadrature component of the input signal is filtered and resampled to the sample rate of the application If the center fre quency is not 0 the quadrature component of the input signal is down converted first Low IF Q RST IQ Example INP IQ TYPE Q Manual operation See Q Mode on page 51 CALibration AlQ HATiming STATe State Activates a mode with enhanced timing accuracy between analog baseband RF and external trigger signals For more information see the R amp S FSW l Q Analyzer
82. MSRA Measurements Parameters Direction INPut Port works as an input OUTPut Port works as an output RST INPut Manual operation See Trigger 2 3 on page 67 OUTPut TRIGger lt port gt LEVel Level 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 oUT Put TRIGgereport 0TYPe Suffix port Selects the trigger port to which the output is sent 2 trigger port 2 front 3 trigger port 3 rear Parameters Level HIGH TTL signal LOW OV RST LOW Manual operation See Trigger 2 3 on page 67 See Level on page 68 OUTPut TRIGger lt port gt OTYPe lt OutputT ype gt This command selects the type of signal generated at the trigger output Suffix lt port gt Selects the trigger port to which the output is sent 2 trigger port 2 front 3 trigger port 3 rear Parameters lt OutputType gt DEVice Sends a trigger signal when the R amp S FSW has triggered inter nally 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 port LEVel RST DEVice 11 4 3 Configuring MSRA Measurements Manual operation See Output Type on page 67 OUTPut TRIGger lt port gt PULSe IMMediate This command generates a pulse at the trigger output Suffix lt port gt
83. Meas Time indicates the ana lyzed measurement time not the captured time e Any bandwidth or sample rate values refer to the application data not to the actual data acquisition from the input signal The analysis line for time based displays is only available in MSRA mode It repre sents a common time marker in all applications whose analysis interval includes that time see Analysis line on page 29 For details on the individual application displays see the corresponding User Manuals for those applications 3 Typical Applications The technological advances made in the field of mobile radio have given rise to a wide variety of standards over the past several decades These standards which include those produced by the global cooperative for standardization the 3rd Generation Partnership Project 3GPP are based on various transmission technologies Net work operators can deploy GSM EDGE WCDMA TD SCDMA and LTE or combina tions of these four standards To handle these complex scenarios the Multistandard Radio Base Station MSR BS was developed These can transmit and receive multiple standards simultaneously on various carriers An MSR BS combines at least two different radio access technologies RAT Specifications and Tests 3GPP has published the specifications TS 37 141 and TS 37 104 for multistandard base stations The latter describes the minimum requirements for multistandard base stations in terms of RF requi
84. Mixer Sl IN C SENSe MIXer THReshold SENSe MIXer STATO eroe ten teer oar ae n uita eode eoa teri eoru Masha ered c eL E Ce b Ed e Ede SENSe MSRA CAP T re OF ES6l tinere rias 169 SENSe PROBesp ID PARTn trDet 2 2 a t trece eet tpa e EU tg rec auos 127 SENSe PROBSsSps ID SRNUrmbOr reote tis aerating ta D ce riae cente e Aes CR Eae E Eu 127 SENSe PPROBesp SETup CMOPFfset irre ter tnter anses 127 SENSe IPROBesp s SETUD MOBDBE 227r apr eie ettet ete ptr eret tdeo tear eter uo eee cenas SENSe PROBe lt p gt SETup NAME SENSe PROB6 lt p gt SE Tup S TA T3 innuere ras 129 SENSe JPROBesp gt SETUP TYPE corras tpe tl ertt er HU exp eR 129 GALGulatesnpn IQ MODE is atri nore t eara see cra ep dia raven EN due Rn CALCulate lt n gt MARKer lt m gt FUNCtion REFerence CAL Culate lt n MSRA ALING SHOW rte nnper a ee ERRARE aaa GALCulatesn MSRA ALINe VALUe iiec oar o a ida eri ope Screens CAL Culate lt n gt MSRA WINDow lt n gt IWALP oooocccccocococoocccoonconnconnncononconnconn ennt ene nnr enr t entre ense nnn enne naene n 169 CALibration AIQ HATiming S TATE acc pecore ree ec tii rd 126 DIAGnostic SERVICO NSQUICO Sastar italia 137 DISPlay WINDow lt n gt TRACe t Y SPACING aoosuasaornacos torso ss 134 DISPlay WINDow n TRACe t Y SCALe eese a ie aeie iea a tkn corona nora ron n conan carr EEEa 133 DISPlay WINDow lt
85. PUtDIO RANGe UPRET conoscan srta oct RE Usus INP t DIG RANGS UPPer AUTO tete tra Rh tea rent XR Eee A A tata INPut DIOG RANGeEUPP6rt UNIT scere theta recrear er torte dat eer rca rre recreare eee o ee ees a RC INPu DIO SRATE AU TO uu INPUT DRAT Hc m eese Centum AL REMANET 105 INPut EATT 131 hz du gHp por EUER 132 INPUEEATTESTATE orense laicos 132 INPutFIETerHPASS STATS uctor rtr eee EA 106 INPut EIEEer YIGESTATS uti tet tee re i Ert ep reet he rode ideo 106 INPUEGAIN ESTA TO comas ss 132 INPUuEGAIN VALU e cocinar e nea ds 133 INPut IMPedance E INPutlQ BALanced ESTATE cc 124 INPutlQ PULESCAl AUTO riore ei et eaa Attias 125 INPutIO FULLScale zd REM 125 lisdem 125 INPUESELOS Cli C 107 INSTr ment CREate DUPLiCate irren rr herir three rent rar P E IERI REPE E KEPT LEE REIR EE 99 INSTrument CREate REPLace ds INSTrument CREate NE Wisin A re ner t nr re ERE Renan INSTrument DELete LC RON AA eE 101 INSTr ment MOD Be ts cte nter Dese ett et eger creta ved gcc vs neste 102 INSTrumentRENaMe ico E M 102 INSTrument
86. Q bandwidth provided by the R amp S FSW in the basic installation can be extended by additional options These options can either be included in the ini tial installation B options or updated later U options The maximum bandwidth provi ded by the individual option is indicated by its number for example B40 extends the bandwidth to 40 MHz Note that the U options as of U40 always require all lower bandwidth options as a pre requisite while the B options already include them As a rule the usable I Q bandwidth is proportional to the output sample rate Yet when the I Q bandwidth reaches the bandwidth of the analog IF filter at very high output sample rates the curve breaks e Bandwidth Extension ODptIOnS erret itti Rhe a a rien n RENE n nARRR 175 e Relationship Between Sample Rate Record Length and Usable I Q Bandwidth 175 e R amp S FSW without additional bandwidth extension options sss 176 e R amp S FSW with options B28 or U28 1 Q Bandwidth Extension 176 e R amp S FSW with option B40 or U40 I Q Bandwidth Extension 176 e R amp S FSW with option B80 or U80 1 Q Bandwidth Extension 176 e R amp S FSW with activated option B160 or U160 1 Q Bandwidth Extension 177 e Max Sample Rate and Bandwidth with Activated I Q Bandwidth Extension Option BICIS EE 177 e Max Sample Rate and Bandwidth with Activate
87. R amp S FSW in order to mea sure the harmonics for a DUT for example This function requires an additional high pass filter hardware option 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 suppressed sufficiently by the YIG filter Parameters lt State gt ON OFF RST OFF Example INP FILT HPAS ON Turns on the filter Usage SCPI confirmed Manual operation See High Pass Filter 1 3 GHz on page 37 INPut FILTer YIG STATe State This command turns the YIG preselector on and off Note the special conditions and restrictions for the YIG filter described in YIG Prese lector on page 37 Parameters State ON OFF 0 1 RST 1 0 for 1 Q Analyzer GSM VSA Pulse Amplifier Transient Analysis DOCSIS and MC Group Delay measurements Example INP FILT YIG OFF Deactivates the YIG preselector Manual operation See YIG Preselector on page 37 11 4 1 2 Configuring MSRA Measurements INPut IMPedance Impedance This command selects the nominal input impedance of the RF input In some applica tions only 50 O are supported 75 Q should be selected if the 50 O input impedance is transformed to a higher impe dance 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
88. R amp S SMBV Measurement example seen 86 RAS molido 59 RBW Displayed curia o rallies 13 Ready for trigger Status register no reete nne tren 164 Record length Deo secutive Sneed dre ee teret 173 Displayed rrt mete tr rr eres 13 WO ate pt 71 Relationship to sample rate ssussssss 175 Reference level 54 57 PAULO VE vtt tis d de eee 79 Digital IQ reete m etie te maie 49 Displayed ici 13 A E EA 55 58 Position LU p 54 57 A e eene idee EA 54 57 FREMMOSIIAG 13 see cncesccuctevesscheth ceosecatineteccad sestecucasebe canine speeds 25 All applications softkey 25 MSRA applications erit menn 74 MSRA applications remote 169 MSRT applications remote n 169 Isesultdisplay viii titi 27 eic ci ito 74 Remote commands Basics ofi Syntax incida ata citan 93 Booleari values 3 iii tenen 97 CApitalizati n ancora nidad 95 Character data neret ER eret 98 Data blocks eet nr nett 98 Numeric Values iere eher ritiene 96 Optional keywords ertt rns 95 Patatmelters ementi a eee a E ree 96 DI 98 SUMTIXOS m 95 Repetition interval 66 fci M 66 Resetting RF input protection etes 104 Restoring Channel settings sisisi aisinas 34 Restrictions MSRA applications eiii enn 29 Results Porra Data format remote es Display MSRA Mast
89. R amp S9FSW MSRA Multi Standard Radio Analyzer User Manual 1001 pts 2 5 MH2 1175 6455 02 14 ROHDE amp SCHWARZ Test amp Measurement User Manual This manual applies to the following R amp S FSW models with firmware version 2 30 and higher R amp S9FSWS 1312 8000K08 e R amp S FSW13 1312 8000K13 R amp S9FSW26 1312 8000K26 R amp S FSW43 1312 8000K43 R amp S FSW50 1312 8000K50 R amp S FSW67 1312 8000K67 R amp S FSW85 1312 8000K85 2015 Rohde amp Schwarz GmbH amp Co KG M hldorfstr 15 81671 M nchen Germany Phone 49 89 41 29 0 Fax 49 89 41 29 12 164 Email info rohde schwarz com Internet www rohde schwarz com Subject to change Data without tolerance limits is not binding R 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 S9FSW is abbreviated as R amp S FSW R amp S FSW Multi Standard Radio Analyzer is abbreviated as R amp S FSW MSRA Contents fal gt ec eee 5 1 1 About this Manual ooooriiccnrrsiccinarn inicia Nn 5 1 2 Documentation Overview eeeeeeeeeeenee eene eene ercer 6 1 3 Conventions Used in the Documentation eene nennen 7 2 Welcome to the MSRA Operating Mode ss 9 2 1 Star
90. RA MSRT mode e Radio Frequoney Inplilbs o eec drea Gees t ean o na a e dition ei e de 35 e Extertial MIXBISSPLUFIGS ccr prat id 38 e Digital l O Input Settiis eae erret iaa eer ha ebd 48 e Analog Baseband Input SSI ctae ccr prc nte dla e lnc e nich der 50 e Probe Setas cin as 52 7 2 1 Radio Frequency Input Access Overview gt Input Frontend gt Input Source gt Radio Frequency or INPUT OUTPUT gt Input Source Config gt Radio Frequency The default input source for the R amp S FSW is Radio Frequency i e the signal at the RF INPUT connector of the R amp S FSW If no additional options are installed this is the only available input source Input Source Settings Input Source Radio Frequency Input Coupling Impedance Direct Path High Pass Filter 1 to 3 GHz YIG Preselector Input Connector Radio Frequency Ste ii 36 Input Coupling P 36 MPA a A A O 36 Direct i m 37 Fligli Pass Filter 1 9 Gh er reser teen P deter p becas 37 MIG APRCS E MAT 37 A M 38 Radio Frequency State Activates input from the RF INPUT connector Remote command INPut SELect on page 107 Input Coupling The RF input of the R amp S FSW can be coupled by alternating current AC or direct cur rent DC AC coupling blocks any DC voltage from the input signal This is the default setting to
91. Results Usage SCPI confirmed Manual operation See Meas Time on page 71 SYSTem SEQuencer State This command turns the Sequencer on and off The Sequencer must be active before any other Sequencer commands INIT SEQ 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 Parameters lt State gt 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 Example 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 Manual operation See Sequencer State on page 25 11 6 Retrieving Results The measurement results are output in the form of a list three different formats can be selected for this list see TRACe 10 DATA FORMat on page 162 For details on formats refer to chapter A 1 Reference Format Description for I Q Data Files on page 172 The applications can only receive data that is available in the capture buffer As soon o as data has been stored to the capture buffer successfully a status bit 9 in the STAT OPER register is set see c
92. S TEP i iste beet o rti cipe der Edda xu Re RR 136 SENSe FREQuency CENTer STEP AUTO ceeeeeteneeeetetn tete tnter 136 SENSO FREQUENCY OPE Sel ee eec a Elta etae eaa Po aite duda 136 SENSe FREQuency CENTer Frequency This command defines the center frequency Parameters Frequency 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 Frequency on page 52 See Center frequency on page 61 Configuring MSRA Measurements 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 135 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 center frequency to 11
93. SW consists of the following parts e Printed Getting Started manual e Online Help system on the instrument e Documentation DVD with Getting Started User Manuals for base unit and firmware applications 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 Y icon on the toolbar of the R amp S FSW Web Help The web help provides online access to the complete information on operating the R amp S FSW and all available options without downloading The content of the web help corresponds to the user manuals for the latest product version The web help is availa ble from the R amp S FSW product page at http www rohde schwarz com product FSW html Downloads Web Help Getting Started This manual is delivered with the instrument in printed form and in PDF format on the DVD It provides the information needed to set up and start working with the instru ment 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 Rohde amp Schwarz website on the R amp S FSW product page at http www rohde schwarz com product FSW html User Manuals User manuals are provided for the base
94. Usage Query only Analyzing MSRA Measurements The data that was captured by the MSRA Master can be analyzed in various different applications The analysis settings and functions available in MSRA mode are those described for the individual applications The MSRA Master is in effect an I Q Analyzer application and has the same analysis functions and settings See the R amp S FSW I Q Analyzer User Manual for a description of the analysis functions and settings available for the I Q Analyzer and thus the MSRA Master The commands required to configure the MSRA specific analysis line are described in chapter 11 9 Commands Specific to MSRA Applications on page 167 Commands Specific to MSRA Applications Most commands for the MSRA applications are identical to those described for the individual applications However some specific commands are available for the MSRA applications only Configuring the analysis interval The commands required to configure the application data extracts and analysis inter vals vary depending on the application See the corresponding application manuals for details For the I Q Analyzer the commands are the same as those used to define the actual data acquisition see chapter 11 4 3 Configuring Data Acquisition on page 145 In MSRA application channels these commands define the analysis interval Be sure to select the correct measurement channel before executing these commands Useful commands for c
95. W User Manual Remote commands exclusive to Analog Baseband data input and output INPut IQ BALanced ESTATe ione iia ced ed eot ec ena n 124 I Puto PULESeale AUTO once 125 INP ut IQ F LLscale EEVel eucu ue ciant nicer etch banana tne en nnda 125 dizsseam dm Tc 125 CALibration AIQ HATiming S TATe 2 2 2 2 22 22 mr taire tortor a ar 126 INPut IQ BALanced STATe State This command defines whether the input is provided as a differential signal via all 4 Analog Baseband connectors or as a plain I Q signal via 2 single ended lines Parameters State ON Differential OFF Single ended RST ON Example INP IQ BAL OFF Manual operation See Input Configuration on page 51 Configuring MSRA Measurements INPut IQ FULLscale AUTO State This command defines whether the full scale level i e the maximum input power on the Baseband Input connector is defined automatically according to the reference level or manually Parameters State ON Automatic definition OFF Manual definition according to INPut 10 FULLscale LEVel on page 125 RST ON Example INP IQ FULL AUTO OFF Manual operation See Full Scale Level Mode Value on page 58 INPut IQ FULLscale LEVel lt PeakVoltage gt This command defines the peak voltage at the Baseband Input connector if the full scale level is set to manual mode see 1NPut 10 FUL
96. ace and the optional Analog Baseband Interface Parameters Level Range 50 dBm to 20 dBm RST 20 dBm Example TRIG LEV BBP 30DBM 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 Configuring MSRA Measurements Suffix port Selects the trigger port 1 trigger port 1 TRIGGER INPUT connector on front panel 2 7 trigger port 2 TRIGGER INPUT OUTPUT connector on front panel 3 trigger port 3 TRIGGER3 INPUT OUTPUT connector on rear panel Parameters lt TriggerLevel gt Range 0 5V to 35V RST 1 4V Example TRIG LEV 2V Manual operation See Trigger Level on page 66 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 that any RF attenuation or preamplification is considered when the trigger level is analyzed If defined a reference level offset is also considered Parameters lt TriggerLevel gt For details on available trigger levels and trigger bandwidths see the data sheet RST 10 dBm Example TRIG LEV IFP 30DBM TRIGger SEQuence LEVel IQPower 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 a
97. acteristics that you need to know when working with SCPI commands are described here For a more 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 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 setting 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 com mand starts executing overlapping command is indicated as an Asynchronous command e Reset values RST Default parameter values that are used directly after resetting the i
98. amples with a much higher sample rate than the specific application actually requires the trigger point determined internally is much more precise than the one determined from the down sampled data in the application Thus the TPIS indicates the offset between the sam ple start and the actual trigger event Configuring MSRA Measurements TPIS sample trigger start event This value can only be determined in triggered measurements using external or IFPower triggers otherwise the value is 0 This command is not available if the Digital Baseband Interface R amp S FSW B17 is active and not for bandwidths 80 MHz Example TRAC IQ TPIS Result for a sample rate of 1 MHz between 0 and 1 1 MHz i e between 0 and 1 us the duration of 1 sample Usage Query only TRACe lQ WBANd STATe State This command determines whether the wideband provided by bandwidth extension options is used or not if installed Parameters State ON OFF ON If enabled installed bandwidth extension options can be used They are activated for bandwidths 80 MHz if the bandwidth is not restricted by the TRACe TO WBANd MBWIDTH command Otherwise the currently available maximum bandwidth is allowed see chapter A 3 Sample Rate and Maximum Usable I Q Bandwidth for RF Input on page 173 This parameter corresponds to the Auto setting in manual operation with TRACe TO WBANd MBWIDTH 320 MHZ OFF The bandwidth exten
99. an 100001 points the diagram does not show valid results Remote command TRACe IQ RLENgth on page 149 RBW Defines the resolution bandwidth The maximum RBW corresponds to the Analysis Bandwidth The minimum RBW depends on the sample rate Depending on the selected RBW mode the value is either determined automatically or can be defined manually As soon as you enter a value in the input field the RBW mode is changed to Manual If the Advanced Fourier Transformation Params option is enabled advanced FFT mode is selected and the RBW cannot be defined directly Note that the RBW is correlated with the Sample Rate and Record Length and possi bly the Window Function and Window Length Changing any one of these parameters may cause a change to one or more of the other parameters For more information see the Basics on FFT section of the R amp S FSW I Q Analyzer and I Q Input User Manual Auto mode Default The RBW is determined automatically depending on the Sample Rate and Record Length Manual mode The RBW can be defined by the user The maximum RBW corre sponds to the Analysis Bandwidth The minimum RBW depends on the sample rate The user defined RBW is used and the Window Length and possibly Sample Rate are adapted accordingly Data Acquisition and Bandwidth Settings Advanced This mode is used if the Advanced Fourier Transformation Params FFT mode option is enabled The RBW is determined by the advanc
100. an be configured in this case Parameters lt DropoutTime gt Dropout time of the trigger Range Osto10 0s RST 0s Manual operation See Drop Out Time on page 66 TRIGger SEQuence HOLDoff TIME Offset Defines the time offset between the trigger event and the start of the sweep Parameters lt Offset gt RST Os Example TRIG HOLD 500us Manual operation See Trigger Offset on page 66 Configuring MSRA Measurements TRIGger SEQuence IFPower HOLDoff Period This command defines the holding time before the next trigger event Note that this command can be used for any trigger source not just IF Power despite the legacy keyword Parameters Period Range Os to 10s RST 0s Example TRIG SOUR EXT Sets an external trigger source TRIG IFP HOLD 200 ns Sets the holding time to 200 ns Manual operation See Trigger Holdoff on page 67 TRIGger SEQuence IFPower HYSTeresis lt Hysteresis gt This command defines the trigger hysteresis which is only available for IF Power trig ger sources Parameters lt Hysteresis gt Range 3 dB to 50 dB RST 3 dB Example TRIG SOUR IFP Sets the IF power trigger source TRIG IFP HYST 10DB Sets the hysteresis limit value Manual operation See Hysteresis on page 66 TRIGger SEQuence LEVel BBPower Level This command sets the level of the baseband power trigger This command is available for the optional Digital Baseband Interf
101. and differential probes are supported as input however since only one connector is occupied by a probe the Single ended setting must be used for all probes Single Ended Q data only Input Source Settings Differential Q and inverse 1 Q data Not available for R amp S FSW85 Remote command INPut IQ BALanced STATe on page 124 High Accuracy Timing Trigger Baseband RF Activates a mode with enhanced timing accuracy between analog baseband RF and external trigger signals Note Prerequisites for previous models of R amp S FSW For R amp S FSW models with a serial number lower than 103000 special prerequisites and restrictions apply for high accuracy timing To obtain this high timing precision trigger port 1 and port 2 must be connected via the Cable for High Accuracy Timing order number 1325 3777 00 e As trigger port 1 and port 2 are connected via the cable only trigger port 3 can be used to trigger a measurement Trigger port 2 is configured as output if the high accuracy timing option is active Make sure not to activate this option if you use trigger port 2 in your measurement setup e When you first enable this setting you are prompted to connect the cable for high accuracy timing to trigger ports 1 and 2 If you cancel this prompt the setting remains disabled As soon as you confirm this prompt the cable must be in place the firmware does not check the connection In remote operation the setting
102. and l Q Input User Manual Parameters lt State gt ON OFF 1 0 ON 1 The high accuracy timing function is switched on The cable for high accuracy timing must be connected to trigger ports 1 and 2 OFF 0 The high accuracy timing function is switched off RST OFF Example CAL AIQ HAT STAT ON Manual operation See High Accuracy Timing Trigger Baseband RF on page 52 11 4 1 5 Setting up Probes Probes can be connected to the optional BASEBAND INPUT connectors if the Analog Baseband interface option R amp S FSW B71 is installed Configuring MSRA Measurements SENSE PROBE sp SE TUD COMOROS 127 SENSeJPROBSsSp IDIPARTDHIDQE iuo cette qe e EEE EETA 127 SENSe PROBe p ID SRNumber sisse ener et ntn nn ennt enn 127 ISENSeTPROBeSps SE TUD MODE terat D eder eere ant ee Rb xe tan ete ea De rud 128 SENSe PROBe p SETUup NAME 2 Lorient eeu iO 128 SENSe PROBe lt p SE Tup S TATE ida 129 SENSeJ PROBe sp SETup l YPES eec id o 129 SENSe PROBe lt p gt SETup CMOFfset lt CMOffset gt Sets the common mode offset The setting is only available if a differential probe is connected to the R amp S FSW If the probe is disconnected the common mode offset of the probe is reset to 0 0 V For details see the R amp S FSW I Q Analyzer and I Q Input User Manual Suffix p 11213 Selects the connector 1 Baseband Input 2 Baseband Input Q 3 RF currently not supported us
103. ari ties 1 Select the I Q Analyzer tab 2 Select the BN icon in the toolbar and move the analysis line either using the rotary knob or by dragging the line on the screen until it reaches the irregular EVM in the EVM vs Chip display The new position of the analysis line in the example is 1 156ms If you switch to the IQ Analyzer and regard the Magnitude display you see that the analysis line is on the rising edge of the GSM burst User Manual 1175 6455 02 14 90 R amp S9FSW MSRA Measurement Example Analyzing MSR Signals MSRA View MSRA Master IQ Analyzer 3G FDD BTS Ref Level 10 00 dim Meas Time Sms SRate 1 0 MHz SGL s Att 20dB Freq 994 9 MHz Rec Length 5000 TRG EXT1 1 Magnitude e 1AP Clrw Analysis Interval E 5 0 ms Yeu CF 994 9 MHz 1001 pts Fig 10 4 Correlating events in an MSR signal You can assume the GSM burst had an effect on the WCDMA carrier causing an error Conclusion of the measurement example In MSRA mode it is very easy to find crosstalk between different carriers by detecting time correlations between different signals since the analysis is performed on the same recorded l Q data This is especially easy to detect using the analysis line in the MSRA View as the time of a particular event is visible in the captured data and all indi vidual application windows at once MSRA View 33 MSRA Master IQ Analyzer 3G FDD BTS Ref Level 10 00 dir Mess Time 2ims SRate 20 0 MMe SER PISTA E
104. arts at the trigger time 0 In MSRT mode the offset may be negative if a pretrigger time is defined For more information see Trigger offset vs capture offset on page 29 For details on the MSRA operating mode see the R amp S FSW MSRA User Manual For details on the MSRT operating mode see the R amp S FSW Real Time Spectrum Application and MSRT Operating Mode User Manual Remote command SENSe MSRA CAPTure OFFSet on page 169 Sweep Settings Access Overview Bandwidth Sweep tab or SWEEP Data Acquisition Sweep Sweep Count Data Acquisition and Bandwidth Settings For background information on performing sweeps in MSRA mode see chapter 6 2 Data Acquisition on page 27 Si iszMmo p M M M Y 74 Refresh MSRA Only uade eet tee secte Eae nto ER unn ca pepe niaaa 74 Continuous Swesp Ps UN CONT siii ai dnd 74 single Sweep RUN SINGLE consi 75 Continue Single SWEBD 4 nre tr EI E ERR HER O 75 Sweep Points In the I Q Analyzer application a specific frequency bandwidth is swept for a specified measurement time During this time a defined number of samples Record Length are captured These samples are then evaluated by the applications Therefore in this case the number of sweep points does not define the amount of data to be acquired but rather the number of trace points that are evaluated and displayed in the result dia grams Note As opposed to pr
105. aseband Interface is instal led Remote command INPut SELect on page 107 I Q Mode Defines the format of the input signal For more information on I Q data processing modes see the R amp S FSW l Q Analyzer and l Q Input User Manual jQ The input signal is filtered and resampled to the sample rate of the application Two inputs are required for a complex signal one for the in phase component and one for the quadrature component Only Low IF I The input signal at the BASEBAND INPUT I connector is filtered and resampled to the sample rate of the application If the center frequency is set to 0 Hz the real baseband signal is dis played without down conversion Real Baseband l If a center frequency greater than 0 Hz is set the input signal is down converted with the center frequency Low IF I Q Only Low IF Q The input signal at the BASEBAND INPUT Q connector is filtered and resampled to the sample rate of the application If the center frequency is set to 0 Hz the real baseband signal is dis played without down conversion Real Baseband Q If a center frequency greater than 0 Hz is set the input signal is down converted with the center frequency Low IF Q Remote command INPut IQ TYPE on page 125 Input Configuration Defines whether the input is provided as a differential signal via all four Analog Base band connectors or as a plain I Q signal via two simple ended lines Note Both single ended
106. aster IQ Analyzer 3G FDD BTS Ref Level 10 00 4 m MSRA Master TELC med 10 00 den TO Analyzer M maax 1 agrio Fig 10 1 MSRA View for I Q Analyzer and 3GPP FDD BTS applications User Manual 1175 6455 02 14 88 R amp S9FSW MSRA Measurement Example Analyzing MSR Signals 4 5 T Select the 3GPP FDD BTS tab to return to the detailed WCDMA results Display the composite EVM of the WCDMA carrier a Press the MEAS CONFIG key then select the Display Config softkey b Scroll through the result display buttons until you see Composite EVM then drag the button to the diagram area of the display The Code Domain Power display is replaced by the Composite EVM dis play C Select the red cross at the top of the result display list 2X to close the Smart Grid mode To optimize the diagram display press the AUTO SET key and select Auto Scale Window MSRA View MSRA Master 1Q Analyzer 3G FDD BTS Ref Level 10 Freq 997 5 MHz Channel Power Rel te 2 Att O dB CPICH Slot SymbRate TRG EXT1 1 Composite EVM Slot 0 3Sltot 2 Result Summar Fig 10 2 Composite EVM of the WCDMA carrier The slots 1 2 8 and 9 show a much higher EVM than the other slots Analyze the EVM for the chips in these slots a Press the MEAS CONFIG key then select the Display Config softkey b Drag the EVM vs Chip button over the Result Summary beneath the Com posite EVM display to replace it C Sel
107. asurement scenarios in which the operating mode is frequently used e Measurements and Result Displays Details on supported measurements and their result types e MSRA Basics Background information on basic terms and principles in the context of the MSRA operating mode e MSRA Configuration A concise description of all functions and settings available to configure an MSRA measurements with their corresponding remote control command e How to Perform Measurements in MSRA Mode The basic procedure to perform an MSRA measurement with step by step instruc tions e Measurement Examples Detailed measurement examples to guide you through typical measurement sce narios and allow you to try out the operating mode immediately Optimizing and Troubleshooting the Measurement Hints and tips on how to handle errors and optimize the test setup e Remote Commands for MSRA Measurements Remote commands required to configure and perform MSRA 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 Alphahabetical list of all remote commands described in the manual e Index Documentation Overview 1 2 Documentation Overview The user documentation for the R amp S F
108. ata rate of up to 200 Msps 160 MHz bandwidth compared to the previous 100 Msps 80 MHz bandwidth The Digital l Q enhanced mode is automatically used if the following prerequisites are fulfilled Digital Input The connected device must support data transfer rates up to 200 Msps Digital Output The R amp S FSW must supply the required bandwidth i e a bandwidth extension option greater than 160 MHz must be installed and active The connected device must support data transfer rates up to 200 Msps Restrictions for digital in and output The following table describes the restrictions for digital in and output Sample Rates and Bandwidths for Digital I Q Data Table 1 5 Restrictions for digital in and output Parameter Minimum Maximum Record length 2 complex samples 220 1024 1024 complex samples Input sample rate ISR 100 Hz 10 GHz Sample Rate SR Digital input Max 100 Hz ISR 8388608 Min 10 GHz 2 ISR Sample Rate SR Digital output 100 Hz 200 MHz Usable 1 Q bandwidth Digital input and filter active Min 0 8 SR 0 8 ISR Bandwidths Depending on the sample rate the following bandwidths are available Usable IQ bandwidth ISR BW 0 8 SR l L D Ll r Filter can be turned off BW 0 8 ISR Fig 1 4 Bandwidths depending on sample rate for active digital input List of Remote Commands MSRA
109. ate 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 Attenuation Mode Value on page 55 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 132 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 Configuring MSRA Measurements Example INP EATT AUTO OFF INP EATT 10 dB Manual operation See Using Electronic Attenuation on page 56 INPut EATT AUTO State This command turns automatic selection of the electronic attenuation on and off If on electronic attenuation reduces the mechanical attenuation whenever possible Parameters State 110 ON OFF 1 ON 0 OFF RST 1 Example INP EATT AUTO OFF Manual operation See Using Electronic Attenuation on page 56 INPut EATT STATe lt State gt
110. can be set automatically as a function of the selected reference level Auto mode This ensures that no overload occurs at the RF INPUT connector for the current reference level It is the default setting By default and when electronic attenuation is not available mechanical attenuation is applied In Manual mode you can set the RF attenuation in 1 dB steps down to 0 dB Other entries are rounded to the next integer value The range is specified in the data sheet If the defined reference level cannot be set for the defined RF attenuation the refer ence 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 131 INPut ATTenuation AUTO on page 131 User Manual 1175 6455 02 14 55 Amplitude Using Electronic Attenuation If the optional Electronic Attenuation hardware is installed on the R amp S FSW you can also activate an electronic attenuator In Auto mode the settings 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 213 6 GHz In Auto mode RF attenuation is pr
111. cgcvessiaces aa 109 SENSe MiXer THResShold ooo rare dead 109 SENSe MIXer STATe lt State gt Activates or deactivates the use of a connected external mixer as input for the mea surement This command is only available if the optional External Mixer is installed and an external mixer is connected Parameters State ON OFF RST OFF Example MIX ON Manual operation See External Mixer State on page 39 SENSe MIXer BIAS HIGH lt BiasSetting gt This command defines the bias current for the high second range This command is only available if the external mixer is active see SENSe MIXer STATe on page 108 Parameters lt BiasSetting gt RST 0 0A Default unit A Manual operation See Bias Settings on page 43 SENSe MIXer BIAS LOW lt BiasSetting gt This command defines the bias current for the low first range This command is only available if the external mixer is active see SENSe MIXer STATe on page 108 Parameters BiasSetting RST 0 0A Default unit A Manual operation See Bias Settings on page 43 SENSe MIXer LOPower Level This command specifies the LO level of the external mixer s LO port Parameters Level numeric value Range 13 0 dBm to 17 0 dBm Increment 0 1 dB RST 15 5 dBm Configuring MSRA Measurements Example MIX LOP 16 0dBm Manual operation See LO Level on page 42 SENSe MIXer SIGNal State This command specifies wh
112. ction is available to update the dis play in one or all other applications Using the Sequencer in MSRA Mode For details on the Sequencer function see the R amp S FSW User Manual Sy The Sequencer menu is available from the toolbar Sequencer State Activates or deactivates the Sequencer If activated sequential operation according to the selected Sequencer mode is started immediately Remote command SYSTem SEQuencer on page 160 INITiate lt n gt SEQuencer IMMediate on page 157 INITiate lt n gt SEQuencer ABORt on page 157 Sequencer Mode Defines how often which measurements are performed The currently selected mode softkey is highlighted blue During an active Sequencer process the selected mode softkey is highlighted orange Single Sequence Each measurement is performed once until all measurements in all active channels have been performed Continuous Sequence The measurements in each active channel are performed one after the other repeatedly in the same order until sequential operation is stopped This is the default Sequencer mode Channel defined Sequence First a single sequence is performed Then only channels in continu ous sweep mode are repeated Remote command INITiate lt n gt SEQuencer MODE on page 158 Refresh All This function is only available if the Sequencer is deactivated no sweep is currently running and only in MSRA mode The data in the capture buffer is re evaluated
113. d I Q Bandwidth Extension Option zl eP 178 Sample Rate and Maximum Usable I Q Bandwidth for RF Input A 3 1 Bandwidth Extension Options Max usable Required B option Required U option s Q BW 10 MHz 28 MHz B28 U28 40 MHz B40 U28 U40 or B28 U40 80 MHz B80 U28 U40 U80 or B28 U40 U80 or B40 U80 160 MHz B160 U28 U40 U80 U160 or B28 U40 U80 U160 or B40 U80 U160 or B80 U160 320 MHz B320 U28 U40 U80 U160 U320 or B28 U40 U80 U160 U320 or B40 U80 U160 U320 or B80 U160 U320 or B160 U320 500 MHz B500 See data sheet A 3 2 Relationship Between Sample Rate Record Length and Usable I Q Bandwidth Up to the maximum bandwidth the following rule applies Usable I Q bandwidth 0 8 Output sample rate Regarding the record length the following rule applies Record length Measurement time sample rate Maximum record length for RF input The maximum record length that is the maximum number of samples that can be cap tured depends on the sample rate For activated option B320 or U320 see table 1 3 For activated option B500 see table 1 4 Sample Rate and Maximum Usable I Q Bandwidth for RF Input Table 1 1 Maximum record length without I Q bandwidth extension options B320 U320 B500 Sample rate Maximum record length 100 Hz to 200 MHz 440 MSamples precisely 461373440 7 440 1024 1024 samples 200
114. d Performing SWeGps deret ee ter rte tbe assa 154 e REIEVING ResUllS c rrt tor rei Ee i e t t cinese 160 e Querying the Status RegisterS oocccconocnonccinnocnnccnnornnncnnnanononccnnnornnccnnnrnnnnnnnnnnos 164 e Analyzing MSRA Measurements iieiaseeeii dc 167 e Commands Specific to MSRA Applications ssssssssssseseee 167 e Programming Example Analyzing MSR Signals eeeeeeceee 170 11 1 Introduction Commands are program messages that a controller e g a PC sends to the instru ment or software They operate its functions setting commands or events and request information query commands Some commands can only be used in one way others work in two ways setting and query If not indicated otherwise the com mands can be used for settings and queries R amp S FSW MSRA Remote Commands to Perform Measurements in MSRA Mode The syntax of a SCPI command consists of a header and in most 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 parame ters 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 Only the most important char
115. d 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 represen ted 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 DISPlay WINDow ZOOM STATe ON Query DISPlay WINDow ZOOM STATe would return 1 Common Suffixes 11 1 6 3 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 95 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 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 Th
116. d turns the 28 V supply of the BNC connector labeled NOISE SOURCE CONTROL on the R amp S FSW on and off Parameters State ON OFF RST OFF Example DIAG SERV NSO ON Manual operation See Noise Source on page 76 Triggering The following remote commands are required to configure a triggered measurement in a remote environment These commands are only available for the MSRA Master channel More details are described for manual operation in chapter 7 5 Trigger Set tings on page 61 OPC should be used after requesting data This will hold off any subsequent changes to the selected trigger source until after the sweep is completed and the data is returned e Configuring the Triggering GondillOns need tn t td tts 137 e Configuring the Trigger OUIEDUL incer nee er rtt rdiet re teens 143 Configuring the Triggering Conditions The following commands are required to configure a triggered measurement TRlIGger SEQuence BBPowerHOEDoff erected etes 138 TRIGO SEQUENCE S DTIMS 2 1 davis x tote eroe Ere ue onn apo eo te ee x eo req EIER e EaR 138 TRIGger SEQuence HOLDoff TIME ecececeeeeeeeeeeee cece eases eae ae ninanda aiani ade iiaa 138 TRIGger SEQuence IFPower HOLHDJofr 2 222 2 222i creo terror ado 139 TRIGger SEQuence IFPower HYSTeresis eise ener nennen 139 TRIGger SEQuenceJ LEVel BBPower ssssssseseseseeeeee serere nene nnne enn
117. d y axis range in dB The default value is 100 dB Remote command DISPlay WINDow lt n gt TRACe lt t gt Y SCALe on page 133 Ref Level Position Defines the reference level position i e the position of the maximum AD converter value on the level axis in 9o where 0 96 corresponds to the lower and 100 to the upper limit of the diagram Remote command DISPlay WINDow lt n gt TRACe lt t gt Y SCALe RPOSition on page 134 Scaling Defines the scaling method for the y axis Logarithmic Logarithmic scaling only available for logarithmic units dB and A V Watt 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 Frequency Settings 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 lt t gt Y SPACing on page 134 DISPlay WINDow lt n gt TRACe lt t gt Y SCALe MODE on page 134 Y Axis Max Defines the maximum value of the y axis in the currently selected diagram in either direction in Volts Thus the y axis scale starts at lt Y Axis Max gt and ends at lt Y Axis Max gt The maximum y axis value depends on th
118. data captured at exactly the same time in various applications The following measurement example demonstrates how to capture data from a signal with 4 carriers using different standards GSM WCDMA LTE GSM and then analyze the data in the MSRA operating mode using the I Q Analyzer and the 3GPP FDD BTS application Measurement setup The measurements are performed using the following instruments and accessories The R amp S FSW with application firmware R amp S FSW K72 3GPP FDD BTS Mea surements e A Vector Signal Generator For example R amp S SMBV with options R amp S SMBV K240 Dig Std GSM EDGE SMBV K242 Dig Std 3GPP FDD SMBV K255 Dig Std EUTRA The vector signal generator is referred to as SMx in the example e 1 coaxial cable 500 approx 1 m N connector e 1 coaxial cable 500 approx 1 m BNC connector To set up the instruments 1 Connect the RF output of the SMx to the RF INPUT connector of the R amp S FSW coaxial cable with an N connector 2 Connect the Marker1 output of the SMx to the TRIGGER INPUT connector of the R amp S FSW coaxial cable with a BNC connector Preparation The waveform of the described multi standard signal is provided in the following file on the R amp S FSW C R_S Instr user Waveforms MSRA_GSM WCDMA LTE GSM wv The signal is described in the Readme txt file in the same folder gt Copy the file from the R amp S FSW to the SMx using a USB stick for example Settings on
119. ded for each connected probe e Probe name e Serial number e R amp S part number e Type of pro be Differential Single Ended For more information on using probes with an R amp S FSW see the R amp S FSW User Manual For general information on the R amp S9RTO probes see the device manuals Common Mode Offset Microbutton Action Common Mode Offset Sets the common mode offset The setting is only available if a differential probe is connected to th e R amp S FSW If the probe is disconnected the common mode offset of the probe is reset to 0 0 V For details see the R amp S FSW I Q Analyzer and l Q Input User Manual Remote command SENSe PROBe p SETup CMOFfset on page 127 Microbutton A ction Active R amp S probes except for RT ZS10E have a configurable microbutton on the probe head By pressing this button you can perform an action on the instrument directly from the probe Select the action that you want to start from the probe Run single No action Starts one data acquisition Prevents unwanted actions due to unintended usage of the microbut ton Remote command SENSe PRO Be lt p gt SETup MODE on page 128 Amplitude 7 3 Amplitude T 3 1 Access AMPT Amplitude settings are identical to the Signal and Spectrum Analyzer mode For background information on amplitude settings see the R amp S FSW User Manual Amplitude Settings Access Over
120. dth BWIDth MOBE 5 1e ias SENSe IQ BANDwidth BWIDth RESolution SENSE JIQ FF TALGOMIMN P A a iee ai Et ISENS IQ FEF FLENG hiina a E E SENSe IIQ EFT WINDOW EENGI Luo t do ierat Wa avn ER ENEA TENS SENSe TIQ EFT WINDOW OVERIBp 2 11 opt tei tip A SENSO FET WINDOW TYPE oo coo tis tct ten e pc E e eset anda e bac Eae RUE ux Sedit SENSe MIXer BIAS HIGH iniit ioi tener a ato SENSe MIXer BIAS LOW bs SENSe MIXer EREQUency HAN DOVE ioter Sin A SENSe MIXer FREQUENCySTARE iii ter eorr ra tix rtr ce ERR ERE EL hee Lr ie 110 SENSe MIXer FREQUency S TOP aactor aie ares 110 SENSe MIXer HARMonic BAND PRES Lt 2 citare egisti ees sve seed ca 111 SENSe MIXer HARMoniG BANDENVALU e 22 icr rare cuir certare sad 111 SENSe MIXer HARMoriic HIGEE STATO ceci tei eee t PR eee adn 112 SENSe MIXer HARMonic HIGE NVALEUe ca e caeci scat a SERV AER dE a 112 SENSe IMIXer HARMonIG TYPE redit denen eere ea ales 112 SENSe MIXer HARMonic OW ti iiio ti tere Pe ti E ea bee tee ER bd o e aps 112 SENS6e MIXSE D OPOWOELu ipei coco a ed epos opea ueste asa 108 SENSE MIX LOSS HIG Hrsina t rne xen tere reb ease rr er a dinar aie 113 SENS MIXer LOSS TABLE MIGF 2i a cete etg t ce cided 113 SENS MIXer LOSS TABLE EOW e ini 113 SENSe MIXer LOSS LOW icit utero a AEAEE 113 SENSE MIXE PORTS naaa utet Hg e de dea a iaa daS NEE 114 SENSe MIXer RFOV errangeE S DATe iiic road 114 SENSE
121. e 2 Welcome to the MSRA Operating Mode The MSRA operating mode is part of the standard R amp S FSW firmware and adds func tionality to perform multi standard radio analysis The R amp S FSW MSRA operating mode features e analysis of the same l Q data in more than one application e analysis of correlated effects due to multiple standards configuration of data acquisition settings only required once for all applications overview of all results in one screen in addition to large display of individual results common analysis line time marker across all applications performing measurements in the frequency and time domain such as channel power measurements on l Q data This user manual contains a description of the functionality specific to the MSRA oper ating mode including remote control operation All functions not discussed in this manual are the same as in Signal and Spectrum Analyzer mode and are described in the R amp S FSW User Manual The latest version is available for download at the product homepage http www2 rohde schwarz com product FSW html 2 1 Starting the MSRA operating mode MSRA is a new operating mode on the R amp S FSW To activate the MSRA operating mode 1 Select the MODE key A dialog box opens that contains all operating modes and applications currently available on your R amp S FSW 2 Select the Multi Standard Radio Analyzer tab Signal Spectrum Analyzer Multi Standard Radio Analyz
122. e 1 with RF Input Connec tor setting Baseband Input I Parameters lt CMOffset gt Range 100E 24 to 100E 24 Increment 1E 3 RST 0 Default unit V Manual operation See Common Mode Offset on page 53 SENSe PROBe lt p gt ID PARTnumber Queries the R amp S part number of the probe Suffix lt p gt 11213 Selects the connector 1 Baseband Input I 2 Baseband Input Q 3 RF currently not supported use 1 with RF Input Connec tor setting Baseband Input I Return values lt PartNumber gt Part number in a string Usage Query only SENSe PROBe lt p gt ID SRNumber Queries the serial number of the probe Suffix lt p gt Return values lt SerialNo gt Usage Configuring MSRA Measurements 11213 Selects the connector 1 Baseband Input 2 Baseband Input Q 3 RF currently not supported use 1 with RF Input Connec tor setting Baseband Input I Serial number in a string Query only SENSe PROBe lt p gt SETup MODE lt Mode gt Select the action that is started with the micro button on the probe head See also Microbutton Action on page 53 Suffix lt p gt Parameters lt Mode gt Manual operation 1 2 3 Selects the connector 1 Baseband Input 2 Baseband Input Q 3 RF currently not supported use 1 with RF Input Connec tor setting Baseband Input I RSINgle Run single starts one data acquisition NOACtion Nothing is started
123. e 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 follow ing digits indicate the length to be 5168 bytes The data bytes follow During the trans mission of these data bytes all end or other control signs are ignored until all bytes are transmitted 0 specifies a data block of indefinite length The use of the indefinite for mat requires a NL END message to terminate the data block This format is useful when the length of the transmission is not known or if speed or other considerations prevent segmentation of the data into blocks of definite length 11 2 Common Suffixes The following common suffixes are used in remote commands specific to MSRA mode Suffix Value range Description m 1 16 Marker n 1 6 Window lt t gt 1 6 Trace Activating MSRA Measurements 11 3 Activating MSRA Measurements MSRA measurements requires a special operating mode on the R amp S FSW A mea surement is started immediately with the default settings referred to by the channel name MSRA Master This channel cannot be replaced o The special MSRA Master measurement channel is of the channel type IQ and is deleted or renamed INSTrument CREate DUPLicate essesesssseesssessseee enne enn nen nna nest inira entr ssa sr sss anis 99 INS TrumentOREatels NEW dace tte poe po tta Aita 9
124. e CPICH Slot O SymbRate 1 Frequency Sweep Code Domain Power A a Ans HERE Analy CF 1 0 GHz 1001 pts 25 Span 25 7 M 2Marker Table Type Stimulus M 1 onse dam wae Pile Poni 63 dBm Ref Level J TQ Analyzer pre pem 1ACLR CF 1 0 GHz 55 MHz Span 25 5 MHz 2 Resuk Summary W CDMA 3GPP DL Ba a 2 0 ms CF 1 0 GHz 1001 pts 2 Result Summary Range Low Power Rel o MA 67 50 dB Channel ower 41 Ref 10 70 dBm Tx Total 10 70 dBm Channel Lower Upper Time and frequency based measurements are configured using the same settings and provide similar results as in the Spectrum application In addition the analysis interval used for the measurement is indicated as in all MSRA applications The time and frequency domain measurements and the available results are described in detail in the R amp S FSW User Manual nana E User Manual 1175 6455 02 14 18 R amp S FSW MSRA Applications and Operating Modes 5 Applications and Operating Modes The R amp S FSW provides several applications for different analysis tasks and different types of signals e g W CDMA l Q analysis or basic spectrum analysis When you activate an application a new measurement channel is created which determines the measurement settings for that application The same application can be activated with different measurement settings by creating several channels for the same application Each channel is displayed in a separate tab on the screen
125. e R amp S FSW GSM User Manual Remote command INST SEL GSM see INSTrument SELect on page 102 Available Applications Transient Analysis The Transient Analysis application requires an instrument equipped with the Transient Analysis option R amp S FSW K60 This application provides measurements and evalua tions for Transient Analysis For details see the R amp S FSW K60 User Manual Remote command INST SEL TA see INSTrument SELect on page 102 Vector Signal Analysis VSA The VSA application requires an instrument equipped with the Vector Signal Analysis option R amp S FSW K70 This application provides measurements and evaluations for Vector Signal Analysis For details see the R amp S FSW VSA User Manual Remote command INST SEL DDEM see INSTrument SELect on page 102 3G FDD BTS The 3G FDD BTS application requires an instrument equipped with the 3GPP Base Station Measurements option R amp S FSW K72 This application provides test measure ments for WCDMA downlink signals base station signals according to the test specifi cation RF measurements are not supported in MSRA mode For details see the R amp S FSW 3G FDD User Manual Remote command INST SEL BWCD see INSTrument SELect on page 102 TD SCDMA BTS The TD SCDMA BTS application requires an instrument equipped with the TD SCDMA BTS Measurements option R amp S FSW K82 This application provides test measure m
126. e analysis interval see chapter 6 3 Multi Standard Analysis on page 28 Be sure to select the correct measurement channel before changing these settings Sample Bale 2 ree tiorem ar e a n e deba n dd n d a d RE 69 Analysis BatidwIdth 2 oiii E aue cus 70 Maximum Bandwidli a E E E 70 A O 71 RECO Ln E Em 71 RBW usan ab err 71 Advanced FFT mode Basic SettidgS ooonnnocininnnnnnonnnccnnnoncnnnccccnnrrnn narran rn 72 L Transformation AMO iii ii 72 A pai D d dU UM IU HUM a 72 L Window ax e RET iii 72 o 7 1 ARN NEN 73 L Window Lao titia agito A adamante e 73 nnlli ll ES 73 Sample Rate Defines the I Q data sample rate of the R amp S FSW This value is dependent on the defined Analysis Bandwidth and the defined signal source Up to the Maximum Bandwidth the following rule applies sample rate analysis bandwidth 0 8 For details on the dependencies see chapter A 3 Sample Rate and Maximum Usable Q Bandwidth for RF Input on page 173 Data Acquisition and Bandwidth Settings In particular note the irregularity mentioned in chapter A 3 9 Max Sample Rate and Bandwidth with Activated l Q Bandwidth Extension Option B500 on page 178 Remote command TRACe IQ SRATe on page 149 Analysis Bandwidth Defines the flat usable bandwidth of the final I Q data This value is dependent on the defined Sample Rate and the defined signal source Up to the Maximum Bandwidth the following rule applies analysis bandwidth
127. e current reference level If the reference level is changed the Y Axis Max value is automatically set to the new reference level in V This command is only available if the evaluation mode for the I Q Analyzer is set to IQ Vector or Real Imag Remote command DISPlay WINDow lt n gt TRACe lt t gt Y SCALe on page 133 7 4 Frequency Settings Access Overview Frequency or FREQ gt Frequency Config Freq Center Stepsize Value Frequency Offset Value 0 0 Hz COMET TOQUE met 61 Center Frequency SIBDSIZQ eed cett ete pci quce dd teenies 61 ErESQUERC OSEE E oda 61 Trigger Settings Center frequency Defines the center frequency of the signal in Hertz Remote command SENSe FREQuency CENTer on page 135 Center Frequency Stepsize Defines the step size by which the center frequency is increased or decreased using the arrow keys 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 Center Sets the step size to the value of the center frequency 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 field Remote command SENSe FREQuency CENTer STEP on page 136 Frequency Offset Shifts t
128. e nnns 139 TRIGger SEQuence LEVel EX Vernaleport terre een neon rena 139 Configuring MSRA Measurements TRIGE SEQuencel EEVel IP PU uc a A eoe dae te tea 140 TRIGgen SEQuencel LEVE lO POWPEF sn re cornu orina discs 140 TRIGger SEQuence LEVel RFPOWeF coocococcccccnnnnnnnnnnnnnncncocononocononnnno non nnnnnn narran nana iadan 140 TRICHET ESEMENCO SOPA A A AA 141 TRiIGger SEQuence SOURGe 1 1 rd Lire na a EEE ALIADA 141 TRIGger GSEQuenceE TIME RINTerval oo E RR RASANE A Ee 143 TRIGger SEQuence BBPower HOLDoff Period This command defines the holding time before the baseband power trigger event The command requires the optional Digital Baseband Interface or the optional Analog Baseband Interface Note that this command is maintained for compatibility reasons only Use the TRIGger SEQuence IFPower HOLDoff on page 139 command for new remote control programs Parameters Period Range 150 ns to 1000s RST 150 ns Example TRIG SOUR BBP Sets the baseband power trigger source TRIG BBP HOLD 200 ns Sets the holding time to 200 ns TRIGger SEQuence DTIMe lt DropoutTime gt Defines the time the input signal must stay below the trigger level before a trigger is detected again For input from the Analog Baseband Interface R amp S FSW B71 using the baseband power trigger BBP the default drop out time is set to 100 ns to avoid unintentional trigger events as no hysteresis c
129. e used for the entire high sec ond range Parameters Average numeric value Range 0 to 100 RST 24 0 dB Default unit dB Example MIX LOSS HIGH 20dB Manual operation See Conversion loss on page 41 SENSe MIXer LOSS TABLe HIGH lt FileName gt This command defines the file name of the conversion loss table to be used for the high second range Parameters lt FileName gt String containing the path and name of the file Example MIX LOSS TABL HIGH MyCVLTable Manual operation See Conversion loss on page 41 SENSe MIXer LOSS TABLe LOW lt FileName gt This command defines the file name of the conversion loss table to be used for the low first range Parameters lt FileName gt String containing the path and name of the file Example MIX LOSS TABL mix 1 4 Specifies the conversion loss table mix 1 4 Manual operation See Conversion loss on page 41 SENSe MIXer LOSS LOW Average This command defines the average conversion loss to be used for the entire low first range Parameters Average numeric value Range 0 to 100 RST 24 0 dB Default unit dB Example MIX LOSS 20dB Manual operation See Conversion loss on page 41 Configuring MSRA Measurements SENSe MIXer PORTSs lt PortType gt This command specifies whether the mixer is a 2 port or 3 port type Parameters lt PortType gt 2 3 RST 2 Example MIX PORT 3 Manual operation See Mixer Type
130. e user Remote command SENSe CORRection CVL COMMent on page 116 Band The waveguide or user defined band for which the table is to be applied This setting is checked against the current mixer setting before the table can be assigned to the range For a definition of the frequency range for the pre defined bands see table 11 2 Remote command SENSe CORRection CVL BAND on page 114 Harmonic Order The harmonic order of the range for which the table is to be applied This setting is checked against the current mixer setting before the table can be assigned to the range Remote command SENSe CORRection CVL HARMonic on page 117 Bias The bias current which is required to set the mixer to its optimum operating point It corresponds to the short circuit current The bias current can range from 10 mA to 10 mA The actual bias current is lower because of the forward voltage of the mixer diode s Tip You can also define the bias interactively while a preview of the trace with the changed setting is displayed see Bias Settings on page 43 Remote command SENSe CORRection CVL BIAS on page 115 Input Source Settings Mixer Name Specifies the name of the external mixer for which the table is to be applied This set ting is checked against the current mixer setting before the table can be assigned to the range Remote command SENSe CORRection CVL MIXer on page 117 Mixer S N Specifies the serial n
131. eastime Manual on page 79 SENSe ADJust FREQuency This command sets the center frequency to the frequency with the highest signal level in the current frequency range Example ADJ FREQ Usage Event Manual operation See Adjusting the Center Frequency Automatically Auto Freq on page 78 SENSe ADJust CONFigure HYSTeresis LOWer Threshold When the reference level is adjusted automatically using the SENSe ADJust LEVel on page 154 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 This setting can only be adjusted in the MSRA Master not in the applications Parameters Threshold Range O dB to 200 dB RST 1 dB Default 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 80 Capturing Data and Performing Sweeps SENSe ADJust CONFigure HYSTeresis UPPer Threshold When the reference level is adjusted automatically using the SENSe ADJust LEVel on page 154 command the internal attenuators and the preamplifier are also adjusted
132. ecause of the forward voltage of the mixer diode s The trace is adapted to the settings immediately so you can check the results To store the bias setting in the currently selected conversion loss table select the Write to lt CVL table name gt button Remote command SENSe MIXer BIAS LOW on page 108 SENSe MIXer BIAS HIGH on page 108 Write to CVL table name Bias Settings Stores the bias setting in the currently selected Conversion loss table for the range see chapter 7 2 2 3 Managing Conversion Loss Tables on page 43 If no conver sion loss table is selected yet this function is not available CVL Table not selected Remote command SENSe CORRection CVL BIAS on page 115 7 2 2 3 Managing Conversion Loss Tables Access Overview gt Input Frontend gt Input Source gt External Mixer gt Conver sion Loss Table or INPUT OUTPUT gt Input Source Config gt Input Source gt External Mixer gt Conversion Loss Table Input Source Settings In this tab you configure and manage conversion loss tables Conversion loss tables consist of value pairs that describe the correction values for conversion loss at certain frequencies The correction values for frequencies between the reference points are obtained via interpolation The currently selected table for each range is displayed at the top of the dialog box All conversion loss tables found in the instrument s C r_s
133. ect the red cross at the top of the result display list 2X to close the Smart Grid mode The EVM vs Chip results are displayed for slot 0 Take a closer look at slot 1 which had a high EVM a Select the Evaluation Range softkey and set the Slot to 7 Slot 1 is highlighted red in the Composite EVM display User Manual 1175 6455 02 14 89 R amp S9FSW MSRA Measurement Example Analyzing MSR Signals b Select the EVM vs Chip window to set the focus on it The EVM for the individual chips in slot 1 is displayed Note the analysis interval displayed in the window title bar which indicates that the data displayed in the EVM vs Chip window was captured in the time interval 667 us to 1 3 ms referred to the absolute time of the I Q signal cap tured with the MSRA Master c Press the PEAK SEARCH key to place Marker1 on the chip with the highest EVM in slot 1 Ref Level 10 00 dem Freq 997 5MHz Channel 0 256 Power Rel to CPICH At 20 dB CPICH Slot 1 SymbRate 15 ksps 3G FDD BTS Att TRG EXT1 1 Composite EVM 1 Clrw Analysis Interval 145 893 ms 10 0 ms Slot 0 Slot 14 2 EVM vs Chip i Clrw erval 666 813 ps 1 333 ms Chip 2559 Fig 10 3 Determining the chip with the highest EVM in a WCDMA slot To determine time correlations in the MSR signal You can use the analysis line to mark an occurrance in time in one application and see the same moment in time in another application and thus find the source of irregul
134. ed FFT parameters Remote command SENSe IQ BANDwidth BWIDth MODE on page 146 SENSe IQ BANDwidth BWIDth RESolution on page 146 Advanced FFT mode Basic settings Shows or hides the Advanced Fourier Transformation parameters in the Data Acqui sition dialog box These parameters are only available and required for the advanced FFT mode Transformation Algorithm Advanced FFT mode Basic settings Defines the FFT calculation method Single One FFT is calculated for the entire record length if the FFT Length is larger than the record length zeros are appended to the captured data Averaging Several overlapping FFTs are calculated for each record the results are combined to determine the final FFT result for the record The number of FFTs to be averaged is determined by the Window Over lap and the Window Length Remote command SENSe IQ FFT ALGorithm on page 146 FFT Length Advanced FFT mode Basic settings Defines the number of frequency points determined by each FFT calculation The more points are used the higher the resolution in the spectrum becomes but the longer the calculation takes In advanced FFT mode the number of sweep points is set to the FFT length automati cally Note If you use the arrow keys or the rotary knob to change the FFT length the value is incremented or decremented by powers of 2 If you enter the value manually any integer value from 3 to 524288 is availab
135. ed one after the other The MSRA Master will then repeat the data acquisition and evaluate the new data etc The channel displays are updated after each measure ment or evaluation Alternatively you can perform measurements manually You can start a single or con tinuous sweep from any application which updates the data in the capture buffer and the results in the current application The results in the other applications however remain unchanged You must refresh them manually either individually or all at once using a Refresh function Note that in continuous sweep mode sweeping is aborted when you switch to a dif ferent application You can then continue sweeping from there This is necessary in order to evaluate the same data in different applications without overwriting the data in the capture buffer In single sweep mode only one sweep is performed a sweep count is not available neither for the MSRA Master nor for the applications However depending on the application a statistics count may be available for statistics based on a single data acquisition Trace averaging is performed as usual for sweep count 0 the current trace is averaged with the previously stored averaged trace Data availability The applications can only receive data that is available in the capture buffer As soon as data has been stored to the capture buffer successfully a status bit 9 in the STAT OPER register is set If the required applicat
136. eference level Example ADJ ALL Usage Event Manual operation See Adjusting all Determinable Settings Automatically Auto All on page 78 SENSe ADJust CONFigure DURation Duration 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 Duration 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 Manual on page 79 SENSe ADJust CONFigure DURation MODE Mode 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 Configuring MSRA Measurements Parameters Mode AUTO The R amp S FSW determines the measurement length automati cally according to the current input data MANual The R amp S FSW uses the measurement length defined by SENSe ADJust CONFigure DURation on page 152 RST AUTO Manual operation See Resetting the Automatic Measurement Time Meastime Auto on page 79 See Changing the Automatic Measurement Time M
137. encer SOflKGy ici as 25 Single sweep SOKE cnica nee DER eh 75 Slope MI 67 141 Slowl Q 180 lem 86 Softkeys Amplitude Goflg enero rentes 54 AUAN eT Auto Freq ae Auto LEVEN Perissi hira in ada BB POWOE nnnc cuesta unas Capture Offset i3 CONTE Nes D A301 Channel defined Sequencer 2 Continue Single Sweep nsu Continuous Sequencer a ZO Continuous SWep iuecee neo rite repens 74 Data Acquisition DiglConf Digital 1 Q Display Config External Free Run MEN Frequericy COMO orici or rente ttti eterna 60 leuc cC tal 65 IE POWOE eade a 64 Input Source Config 1 00 Lower Level Hysteresis 80 Meastime Auto ME Meastime Manual wi 19 OUTPUTS CONG ercer reete 76 Power Sensor 2 5 0 90 02 8 a ele ets 65 isch 56 Ref Level D4 57 Ref Level Offset 95 58 Incl NONE C T 74 FRETHESIUA Por 25 Repetition interval 2 etre 66 RF Atten Auto 55 RF Atten Manual 44 95 RF Power 65 Scale Config 358 DEGUENCER e M 25 Single Sequericer e ere ert metere s 25 Single Sweep Trigger Config Trigger Offset Upper Level Hysteresis rnt 79 Specifics for CONTIQUTAION escanea 35 SRate see Sample Tate drerit 13 S
138. end gt Input Source gt External Mixer gt Conver sion Loss Table New Table Edit Table or INPUT OUTPUT gt Input Source Config gt Input Source gt External Mixer gt Conversion Loss Table New Table Edit Table Conversion loss tables can be newly defined and edited A preview pane displays the current configuration of the conversion loss function as described by the position value entries Table File Name USERTABLE J Comment User defined conversion loss table for USER band J Band Settings Band Mixer Name FS Z60 Harmonic Order 3 Mixer S N 123 4567 Bias Mixer Type 55 00000000000 GHz 75 00000000000 GHz Mixer INGITIQ ioter ut aa ad debutto see 47 MIRES occ aida ita 47 Input Source Settings iurc idi hor EE 47 POSITION VAMO acid ia 47 A O TO 47 Delete MAME ases 47 Sia 48 O 48 coU TO 48 File Name Defines the name under which the table is stored in the C r_s instr user cvl directory on the instrument The name of the table is identical with the name of the file without extension in which the table is stored This setting is mandatory The ACL extension is automatically appended during storage Remote command SENSe CORRection CVL SELect on page 118 Comment An optional comment that describes the conversion loss table The comment can be freely defined by th
139. ents for TD SCDMA BTS downlink signals base station signals according to the test specification RF measurements are not supported in MSRA mode For details see the R amp S FSW TD SCDMA User Manual Remote command INST SEL BTDS see INSTrument SELect on page 102 cdma2000 BTS The cdma2000 BTS application requires an instrument equipped with the cdma2000 BTS Measurements option R amp S FSW K82 This application provides test measure ments for cdma2000 BTS downlink signals base station signals according to the test specification RF measurements are not supported in MSRA mode For details see the R amp S FSW cdma2000 User Manual Remote command INST SEL BC2K see INSTrument SELect on page 102 5 2 Selecting the Operating Mode and Application 1xEV DO BTS The 1xEV DO BTS application requires an instrument equipped with the 1xEV DO BTS Measurements option R amp S FSW K84 This application provides test measure ments for 1xEV DO BTS downlink signals base station signals according to the test specification RF measurements are not supported in MSRA mode For details see the R amp S FSW 1xEV DO User Manual Remote command INST SEL BDO see INSTrument SELect on page 102 LTE DL The LTE Downlink application requires an instrument equipped with the LTE Downlink option R amp S FSW K100 or R amp S FSW K104 This application provides test measure ments for LTE downlink signals base station
140. er seen 17 Retrieving remote sene Updating the display Updating the display remote RF attenuation PU H 55 Manual REMPU E 35 Connector remote acota ies Overload protection remote A A ertet e eeu RF overrange Exterrial MIXED tmr etes RF Power Ele 65 Trigger level remote sese 140 RUN CONT M 74 RUN SINGLE lp n 75 S Sample rate JefililllODY viral 173 180 Digitalll Qt ich eco ia geri 3n 49 Digital 1 Q remote 123 124 Digital VQ Gata incidir 180 Displayed se 18 1 Q data 69 MAXIMUM tes ottico cda Chop ae Et eee gs 173 Relationship to bandwidth sseesssss 175 A dare tse dede Hed e edges 149 Scaling Config tatioti iii t s 58 col M 59 Y axis remote control aiies 134 Sequencer Aborting remote alcista 157 Activating remote 157 Continuous sweep cus oe Mode remote 4 tieni etre pte MSRA mode Remote Result display Softkey hn Slate cost E tui nsi fie e Signal ID External MIXE ci ds 42 External Mixer Remote control 109 Signal source ROITIOIO cere tilda 107 Single Sequ
141. er New Channel 3 Confirm the message informing you that you are changing operating modes The R amp S FSW closes all active measurement channels in the current operating mode then opens a new measurement channel for the MSRA operating mode In addition to the MSRA View an MSRA Master tab is displayed Understanding the Display Information The Sequencer is automatically activated in continuous mode see chapter 5 3 Using the Sequencer in MSRA Mode on page 24 starting an I Q Analyzer data acquisition with the default settings but with a Spectrum result display It can be configured in the MSRA Overview dialog box which is displayed when you select the Overview softkey from any menu see chapter 7 Configuration on page 32 Remote command INST MODE MSR see INSTrument MODE on page 102 2 2 Understanding the Display Information The following figure shows a screen display during MSRA operation All different infor mation areas are labeled They are explained in more detail in the following sections The orange background of the screen behind the measurement channel tabs indi cates that you are in MSRA operating mode e The B icon on the tab label indicates that the displayed trace e g in an MSRA application no longer matches the currently captured data This may be the case for example if a data acquisition was performed in another application As soon as the result display is refreshed
142. er 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 R amp S FSW User Manual do ltd 63 eTe Ee E terti Dri aeta lenken dl eek c Ed rad eek ee S 63 L Free ii ii id tz 63 L Extemal Trigger 1 2 3 serta rnb ais 63 L Baseband POWEL cccccsccessecssceseececsscsaceececsecsecaseecsesaseacsesaceecetecseeateaees 64 User Manual 1175 6455 02 14 62 Trigger Settings coo RR ED 64 a A Ei TT 64 dil A 65 A 65 L Power Bener oisi sptite si DRE EE UE ra ELE Cod RICE evo PRL rua DE 65 o NM OUR PT 66 L Repetition A M 66 L Drop Out TUNI ii 66 A A 66 A asada wad tmnt E T ET 66 L Trigger HORE oed iitincutaliu latos iud cba iiim tutari t cbe 67 Eo o j GO I 67 TITO m 67 O ENERO O A E a 67 2 68 E Pulse Lar ceci 68 ZA 68 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 141 Free Run Trigger Source Trigger Source No trigger source is considered Data acquisition is started manually or automatically and continues until stopped explicitely Rem
143. erHARMonic HIGHESTATe uiua t tou intet e A Rin ene ARRE nean DAI ARR dca 112 SENSe MIXer HARMonic HIGH VALUG ccceeeeeeeeeeeeeeeee eee eee nennen enne nnns 112 ISENSe MIXGEBARMODIET Y BE ect ee ecce ere eee da 112 SENSe MIXer HARMonic LOW ios 112 SENSO NILO SS FUGA 3 1i teen er etre n 113 SENSe IMIXer EOSS T ABL BI GEL uiu tada iia eu tona dT ipei elas 113 SENSe MIXer LOSS TABLe LOW eccentric 113 SENSe MIXer LOSBDLOW aiii ica 113 SENSE MIXErPORTS p 114 SENSe MIXerRFOVerangal STATS coord 114 SENSe MIXer FREQuency HANDover lt Frequency gt This command defines the frequency at which the mixer switches from one range to the next if two different ranges are selected The handover frequency for each band can be selected freely within the overlapping frequency range This command is only available if the external mixer is active see SENSe MIXer STATe on page 108 Parameters lt Frequency gt numeric value Example MIX ON Activates the external mixer MIX FREQ HAND 78 0299GHz Sets the handover frequency to 78 0299 GHz Manual operation See Handover Freq on page 40 SENSe MIXer FREQuency STARt This command queries the frequency at which the external mixer band starts Example MIX FREQO STAR Queries the start frequency of the band Usage Query only Manual operation See RF Start RF Stop on page 39 SENSe MIXer FREQuency STOP Th
144. ether automatic signal detection is active or not Note that automatic signal identification is only available for measurements that per form frequency sweeps not in vector signal analysis or the I Q Analyzer for instance Parameters State OFF ON AUTO ALL OFF No automatic signal detection is active ON Automatic signal detection Signal ID is active AUTO Automatic signal detection Auto ID is active ALL Both automatic signal detection functions Signal ID Auto ID are active RST OFF Manual operation See Signal ID on page 42 See Auto ID on page 43 SENSe MIXer THReshold Value This command defines the maximum permissible level difference between test sweep and reference sweep to be corrected during automatic comparison see SENSe MIXer SIGNal on page 109 Parameters Value numeric value Range 0 1 dB to 100 dB RST 10 dB Example MIX PORT 3 Manual operation See Auto ID Threshold on page 43 Mixer Settings The following commands are required to configure the band and specific mixer set tings SENSe MIXer FREQuency HANDYONVSE ici ceci eucdaxut ceto catre erae eua ava ica 110 SENSeJMIXerEREOuerCy S TAREA 110 SENSe MIXer FREQuency STOP2 eec ccpae etra iaa 110 SENSe MIXeERARMoOnIGBANDIPRESGl 2 2222 et exer eet e bent ca 111 Configuring MSRA Measurements SENSe TMIXer HARMonic BANDI VAbLUus 2 222 trito erret nen ren P tna 111 SENSe MIX
145. etition interval for a time trigger The shortest interval is 2 ms The repetition interval should be set to the exact pulse period burst length frame length or other repetitive signal characteristic Remote command TRIGger SEQuence TIME RINTerval on page 143 Drop Out Time Trigger Source Defines the time the input signal must stay below the trigger level before triggering again Note For input from the optional Analog Baseband Interface using the baseband power trigger BBP the default drop out time is set to 100 ns to avoid unintentional trigger events as no hysteresis can be configured in this case For details see the R amp S FSW 1I Q Analyzer and l Q Input User Manual Remote command TRIGger SEQuence DTIMe on page 138 Trigger Offset Trigger Source Defines the time offset between the trigger event and the start of the sweep for the MSRA Master This setting is not available in MSRA application measurement channels For applica tions use the Capture Offset on page 73 instead offset 0 Start of the sweep is delayed offset 0 Sweep starts earlier pre trigger Maximum allowed range limited by the sweep time pretrigger ax sweep time Remote command TRIGger SEQuence HOLDoff TIME on page 138 Hysteresis Trigger Source Defines the distance in dB to the trigger level that the trigger source must exceed before a trigger event occurs Settting a hysteresis avoids u
146. ette tene 21 H Handover frequency External Mixer siis e ete ie eec n External Mixer Remote control Hardware settings BIET 13 BIET 13 Harmonics Conversion loss table ener 46 External Mixer Remote control 112 Order External Mixer essen 41 Type External Mixer see 41 High pass filter REMO cocco ia ep dedic en vendue eR Ua 106 RF IN DUE eee TEN 37 Hysteresis Lower Auto level MIT secas ots x Upper Auto level 2 2 rettet re l 1 Q Analyzer Analysis interval ii rente 81 MSRA application trennt eet 21 MSRA Master rere ct trece 17 167 1 Q data Analyzing i rrr rrr ici Availability Capturing E EEXDOMIAG paria File format description comic 172 Maximum bandwidth esses xai Measurements in time and frequency domain 30 Sample rate nes Trigger point in sample TPIS sssse 149 1 Q Power Hr 65 Trigger level remote 2 rre 140 1 Q Vector Y xis scalihng rrt tenente 60 IF Power Mera 64 Trigger level remote sees 140 IF WIDE OUTPUT GOMMECION Y 70 Impedance cuc 107 iu 36 Input Analog Baseband Interface B71 settings 50 Connector remote 5 Coublilig 2 roten tenet Peters Coupling remote
147. evious versions of the I Q Analyzer the sweep settings are now window specific For some result displays the sweep points may not be editable as they are determined automatically or restrictions may apply For the I Q vector result display the number of I Q samples to record Record Length must be identical to the number of trace points to be displayed Sweep Points Thus the sweep points are not editable for this result display If the Record Length is edited the sweep points are adapted automatically For record lengths out side the valid range of sweep points i e less than 101 points or more than 32001 points the diagram does not show valid results Using fewer than 4096 sweep points with a detector other than Auto Peak may lead to wrong level results Remote command SENSe SWEep POINts on page 159 Refresh MSRA only This function is only available if the Sequencer is deactivated and only for MSRA applications The data in the capture buffer is re evaluated by the currently active application only The results for any other applications remain unchanged This is useful for example after evaluation changes have been made or if a new Sweep was performed from another application in this case only that application is updated automatically after data acquisition Note To update all active applications at once use the Refresh all function in the Sequencer menu Remote command INITiate lt n gt REFRe
148. ew to restore all measurement settings in the current channel to their default values Note that the PRESET key restores the entire instrument to its default values and thus closes all measurement channels on the R amp S FSW except for the default Spectrum application channel Remote command SYSTem PRESet CHANnel EXECute on page 103 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 window 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 7 2 Input Source Settings Access Overview gt Input Frontend gt Input Source or INPUT OUTPUT gt Input Source Config The input source determines which data the R amp S FSW will analyze Since the Digital I Q input and the Analog Baseband input use the same digital signal path both cannot be used simultaneously When one is activated established connec tions for the other are disconnected When the second input is deactivated connec tions to the first are re established This may cause a short delay in data transfer after switching the input source External mixers are not supported in MS
149. fer is re evaluated by the currently active application only The results for any other applications remain unchanged The application channel must be selected before this command can be executed see INSTrument SELect on page 102 The suffix lt n gt is irrelevant Example SYST SEQ OFF Deactivates the scheduler INIT CONT OFF Switches to single sweep mode INIT WAI Starts a new data measurement and waits for the end of the sweep INST SEL IQ ANALYZER Selects the IQ Analyzer channel INIT REFR Refreshes the display for the I Q Analyzer channel Usage Event Manual operation See Refresh MSRA only on page 74 SENSe MSRA CAPTure OFFSet Offset This setting is only available for applications in MSRA mode not for the MSRA Master It has a similar effect as the trigger offset in other measurements 11 10 Programming Example Analyzing MSR Signals Parameters Offset This parameter defines the time offset between the capture buf fer start and the start of the extracted application data The off set must be a positive value as the application can only analyze data that is contained in the capture buffer Range 0 to Record length RST 0 Manual operation See Capture Offset on page 73 Programming Example Analyzing MSR Signals The following programming example demonstrates the use of the most important remote commands in MSRA mode The example is based on the measurement e
150. frequency e g zero span or I Q measurements the third IF represents the center frequency This trigger source is only available for RF input It is not available for input from the optional Digital Baseband Interface or the optional Analog Baseband Interface The available trigger levels depend on the RF attenuation and preamplification A refer ence level offset if defined is also considered For details on available trigger levels and trigger bandwidths see the data sheet Remote command TRIG SOUR IFP see TRIGger SEQuence SOURce on page 141 RF Power Trigger Source Trigger Source Defines triggering of the measurement via signals which are outside the displayed measurement range For this purpose the instrument uses a level detector at the first intermediate fre quency 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 preampli fication For details on available trigger levels see the instrument s 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 stabil ity can be defined for the RF trigger but no Hysteresis Remote command TRIG SOUR RFP see
151. hapter 11 7 1 STATus OPERation Register on page 164 Retrieving Results a seen osea arn ed ds edt derat ada s ted erint 161 TRAGGIO DATA 25 rs sessteaqsave ee AA SER I SERES AAA AA AAA BE RUNE 161 TRAC BNO ADA TARO lito 162 TRACES DATA MEMON ii cele etur eon A t eee trae eed 162 FORMat DATA Format 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 Format 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 for mats 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 I Q data 8 bytes per sample are returned for this format set ting RST ASCII Example FORM REAL 32 Usage SCPI confirmed TRACe IQ DATA This command queries the captured data from measurements with the I Q Analyzer To get the results the command also initiates a measurement with the current settings of the R amp S FSW Return values Results Measured voltage for
152. he band is split For the band USER the order of harmonic is defined by the user The order of har monic can be between 2 and 61 the lowest usable frequency being 26 5 GHz Remote command SENSe MIXer HARMonic LOW on page 112 SENSe MIXer HARMonic HIGH VALue on page 112 Conversion loss Mixer Settings Harmonics Configuration Defines how the conversion loss is handled The following methods are available Average Defines the average conversion loss for the entire range in dB Table Defines the conversion loss via the table selected from the list Pre defined conversion loss tables are often provided with the external mixer and can be imported to the R amp S FSW Alternatively you can define your own conversion loss tables Imported tables are checked for compatibility with the current settings before being assigned Conversion loss tables are configured and managed in the Conver sion Loss Table tab For details on conversion loss tables see the External Mixer descrip tion in the R amp S FSW User Manual For details on importing tables see Import Table on page 45 Remote command Average for range 1 SENSe MIXer LOSS LOW on page 113 Table for range 1 SENSe MIXer LOSS TABLe LOW on page 113 Average for range 2 SENSe MIXer LOSS HIGH on page 113 Table for range 2 SENSe MIXer LOSS TABLe HIGH on page 113 Input Source Settings 7 2 2 2 Basic Settings Access O
153. he displayed frequency range along the x axis by the defined offset This parameter has no effect on the instrument s hardware or on the captured data or on data processing It is simply a manipulation of the final results in which absolute fre quency 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 O Hz Note In MSRA mode this function is only available for the MSRA Master Remote command SENSe FREQuency OFFSet on page 136 7 5 Trigger Settings Access Overview Trigger or TRIG gt Trigger Config Trigger settings determine when the input signal is measured These settings are only available for the MSRA Master R amp S FSW MSRA Configuration for MSRA applications only is described in The Capture Offset which has a similar function to the trigger offset but is available on page 68 Trigger Source Trigger In Out Level DOTA 0 0 s 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 Trigg
154. icated by a graphic on the button Remote command OUTPut TRIGger lt port gt PULSe IMMediate on page 145 7 8 7 9 Display Configuration Display Configuration Access Overview Display Config or MEAS The captured signal can be displayed using various evaluation methods All evaluation methods available for the current application are displayed in the evaluation bar in SmartGrid mode when you do one of the following Up to 6 evaluations can be displayed in the I Q Analyzer and thus in the MSRA Master at any time including several graphical diagrams marker tables or peak lists For a description of the available evaluation methods see the Measurements and Result Displays topic of the corresponding application User Manual Automatic Settings Access AUTO SET Some settings can be adjusted by the R amp S FSW automatically according to the current measurement settings Settings related to data acquisition measurement time hysteresis can only be adjus ted in the MSRA Master not in the applications Adjusting all Determinable Settings Automatically Auto All 78 Adjusting the Center Frequency Automatically Auto Freq ssssssss 78 Setting the Reference Level Automatically Auto Level sesseeeeeses 79 Resetting the Automatic Measurement Time Meastime Auto ss 79 Changing the Automatic Mea
155. ilable for the MSRA Mas ter ME Dao EET 104 AjengExtermal MIES ui 107 e Configuring Digital I Q Input and Output 120 e Configuring Input via the Optional Analog Baseband Interface 124 LEE SOWING UP PIONS m 126 e Configuring the Vertical Axis Amplitude Scaling sseesssssss 129 CM ipee 135 e QOotnfiguring the Outputs 2 52 5 o eror retro a aee e s Rua Decr rhe ie E ER daa 137 RF Input INPutAT Tenuation PRO Tection RESE encsi erase veau sva tura inci 104 INPUECONNGGIGE iae sect ar Raetia e a Bdena alain 105 UPTO Pet e O 105 INPUEDP WU eiaa 105 INPut FIE Tei HPASSESTATe itii enceinte eee c deer fece 106 dise ep E M 106 INPUEIMPEJANES 125 otro neos en eee arn pda tex da cidad 107 INPUESE GG iis e 00d 107 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 QUES POW status register and the INPUT OVLD message in the status bar are cleared Configuring MSRA Measurements The command works only if the overload condition has been eliminated first Usage Event INPut CONNector lt ConnType gt Determines whether the RF input data is taken from
156. imally ignores any Reference Level Offset Thus it is impor tant to keep in mind the actual power level the R amp S FSW must handle and not to rely on the displayed reference level internal reference level displayed reference level offset Remote command DISPlay WINDowcn TRACe t Y SCALe RLEVel OFFSet on page 130 Full Scale Level Mode Value The full scale level defines the maximum power you can input at the Baseband Input connector without clipping the signal The full scale level can be defined automatically according to the reference level or manually For manual input the following values can be selected e 025V e 05V e 1V e 2V If probes are connected the possible full scale values are adapted according to the probe s attenuation and maximum allowed power For details on probes see the R amp S FSW l Q Analyzer and l Q Input User Manual Remote command INPut IQ FULLscale AUTO on page 125 INPut IQ FULLscale LEVel on page 125 7 3 3 Scaling the Y Axis The individual scaling settings that affect the vertical axis are described here Access Overview gt Amplitude gt Scale tab or AMPT gt Scale Config Amplitude Amplitude Scale Range Scaling Logarithmic Range 100 dB Y Ld Linear Percent rig sv Ese 100 0 Yo d Linear with Unit Auto Scale Once SS Mi A ANA A 59 bh UII em 60 Range Defines the displaye
157. ings enr er cei eren netten Analog Baseband B71 Full scale level nenne 58 1 Q mode Input type remote control ssees 125 Analog Baseband Interface B71 Amplitude settings Sirin nonet rer rne 57 Input settings sicario rana rh entente 50 Analog Demodulation MSRA application nene 21 Analysis Bandwidth errem nera ci eere 70 Bandwidth definition oooooooccnccncnococcccnnos 173 180 Iu C 81 Analysis interval 28 CONQUE OM ec D p cR CEU 81 Configuration remote s sisien 167 VQ Analyzer 69 81 kic ea 29 Analysis lile icio rt ero rn crt rnnt rideo 29 CONQUE o n ui EU II T 81 Application data 28 Availability 2f Configuration remote ssssssseese 167 Coverage 12 14 RESTICIONS D 29 Results Settings sd ICI p Applications Pulse nre mrt nr aceti n exe 21 see MSRA applications 2i Transient Analysis siii ertet reinen AQT Displayed eter ren ree rtr artem ce nne 13 Attenualtioli rere eren ree rer rre e re e 55 PU m 55 Displayed aie rte att 13 i iz ferigoln e REED 56 Mairitlall TA citer T ane ees 55 ioi e M 56 Protective remote 104 Auto all itte TO Auto frequeliy eere recor iii 78 Auto ID External MIXGt as ias 43
158. instr user cvl direc tory are listed in the Modify Tables list Frequency Basic Settings Mixer Settings Conversion Loss Table External Mixer NI MI Cc T 44 Edit Table o rte E eie wb ere EE voee cet n Eee e e Ee hope cate odere 44 Delete Tabla T TR 44 MPOE TADS e 45 New Table Opens the Edit Conversion loss table dialog box to configure a new conversion loss table For details on table configuration see chapter 7 2 2 4 Creating and Editing Con version Loss Tables on page 45 Remote command SENSe CORRection CVL SELect on page 118 Edit Table Opens the Edit Conversion loss table dialog box to edit the selected conversion loss table For details on table configuration see chapter 7 2 2 4 Creating and Editing Con version Loss Tables on page 45 Remote command SENSe CORRection CVL SELect on page 118 Delete Table Deletes the currently selected conversion loss table after you confirm the action Remote command SENSe CORRection CVL CLEAr on page 115 Input Source Settings Import Table Imports a stored conversion loss table from any directory and copies it to the instru ment s C r_s instr user cv1 directory It can then be assigned for use for a specific frequency range see Conversion loss on page 41 7 2 2 4 Creating and Editing Conversion Loss Tables Access Overview gt Input Front
159. ion loss table must be selected see SENSe CORRection CVL SELect on page 118 This command is only available with option B21 External Mixer installed Parameters lt Freq gt numeric value The frequencies have to be sent in ascending order lt Level gt Example CORR CVL SEL LOSS TAB 4 Selects the conversion loss table CORR CVL DATA 1MHZ 30DB 2MHZ 40DB Manual operation See Position Value on page 47 Configuring MSRA Measurements SENSe CORRection CVL HARMonic lt HarmOrder gt This command defines the harmonic order for which the conversion loss table is to be used This setting is checked against the current mixer setting before the table can be assigned to the range Before this command can be performed the conversion loss table must be selected see SENSe CORRection CVL SELect on page 118 This command is only available with option B21 External Mixer installed Parameters lt HarmOrder gt numeric value Range 2 to 65 Example CORR CVL SEL LOSS TAB 4 Selects the conversion loss table CORR CVL HARM 3 Manual operation See Harmonic Order on page 46 SENSe CORRection CVL MIXer Type This command defines the mixer name in the conversion loss table This setting is checked against the current mixer setting before the table can be assigned to the range Before this command can be performed the conversion loss table must be selected see SENSe CORRectio
160. ion data is not available an error message is displayed Details on restrictions are described in chapter 6 4 Restrictions for Applications on page 29 User Manual 1175 6455 02 14 27 R amp S9FSW MSRA MSRA Basics 6 3 Multi Standard Analysis Application data The applications receive data for analysis from the capture buffer if necessary resam pled or with filters applied The applications can define their own center frequency sample rate and record length for their application data which is an extract of the capture buffer data The applications may not request more sample points than the captured data contains or samples from a frequency outside the range of the capture buffer for example Generally if a signal contains data channels for multiple standards the individual appli cations are used to analyze the channel for the corresponding standard Thus it is of interest to know which application or more precisely which data channel is analyzing which part of the captured data and how each data channel is correlated in time to others The MSRA Master display indicates the data covered by each application restricted to the channel bandwidth used by the corresponding standard by vertical blue lines labeled with the application name For applications that support several standards e g VSA LTE an estimated or user defined bandwidth is indicated MSRA View EE MSRA Master co 3G FOD BTS Ref Level 5 00 dBm Meas
161. irrelevant Note even if the analysis line display is off the indication whether or not the currently defined line position lies within the analysis interval of the active application remains in the window title bars Parameters lt State gt ON OFF RST ON Manual operation See Show Line on page 82 CALCulate lt n gt MSRA ALINe VALue lt Position gt This command defines the position of the analysis line for all time based windows in all MSRA applications and the MSRA Master lt n gt is irrelevant Parameters lt Position gt Position of the analysis line in seconds The position must lie within the measurement time of the MSRA measurement Default unit s Commands Specific to MSRA Applications Manual operation See Position on page 82 CALCulate lt n gt MSRA WINDows lt n gt IVAL This command queries the analysis interval for the window specified by the WINDow suffix lt n gt the CALC suffix is irrelevant This command is only available in application measurement channels not the MSRA View or MSRA Master Return values lt IntStart gt Start value of the analysis interval in seconds Default unit s lt IntStop gt Stop value of the analysis interval in seconds Usage Query only INITiate lt n gt REFResh This function is only available if the Sequencer is deactivated SYSTem SEQuencer SYST SEQ OFF and only for applications in MSRA mode not the MSRA Master The data in the capture buf
162. is command queries the frequency at which the external mixer band stops Example MIX FREQ STOP Queries the stop frequency of the band Usage Query only Manual operation See RF Start RF Stop on page 39 Configuring MSRA Measurements SENSe MIXer HARMonic BAND PRESet This command restores the preset frequency ranges for the selected standard wave guide band Note Changes to the band and mixer settings are maintained even after using the PRESET function Use this command to restore the predefined band ranges Example MIX HARM BAND PRES Presets the selected waveguide band Usage Event Manual operation See Preset Band on page 40 SENSe MIXer HARMonic BAND VALue Band This command selects the external mixer band The query returns the currently selected band This command is only available if the external mixer is active see SENSe MIXer STATe on page 108 Parameters Band KAJQ U V E W F D G Y J USER Standard waveguide band or user defined band Manual operation See Band on page 40 Table 11 2 Frequency ranges for pre defined bands Band Frequency start GHz Frequency stop GHz KA A 26 5 40 0 Q 33 0 50 0 U 40 0 60 0 V 50 0 75 0 E 60 0 90 0 Ww 75 0 110 0 F 90 0 140 0 D 110 0 170 0 G 140 0 220 0 J 220 0 325 0 Y 325 0 500 0 USER 32 18 68 22 default default The band formerly referred to as A
163. itches to manual RBW mode IQ BAND RES 120000 Sets the RBW to 120 kHz Usage SCPI confirmed Manual operation See RBW on page 71 SENSe IQ FFT ALGorithm Method Defines the FFT calculation method Parameters Method Example Usage Manual operation Configuring MSRA Measurements SINGIe One FFT is calculated for the entire record length if the FFT length is larger than the record length see SENSe IO FFT LENGth and TRACe 1Q RLENgth zeros are appended to the captured data AVERage Several overlapping FFTs are calculated for each record the results are averaged to determine the final FFT result for the record The user defined window length and window overlap are used see SENSe IQ FFT WINDow LENGth and SENSe IQ FFT WINDow OVERlap RST AVER IQ FFT ALG SING SCPI confirmed See Transformation Algorithm on page 72 SENSe IQ FFT LENGth lt NoOfBins gt Defines the number of frequency points determined by each FFT calculation The more points are used the higher the resolution in the spectrum becomes but the longer the calculation takes Parameters lt NoOfBins gt Example Usage Manual operation integer value Range 3 to 524288 RST 4096 IQ FFT LENG 2048 SCPI confirmed See FFT Length on page 72 SENSe IQ FFT WINDow LENGth lt NoOfFFT gt Defines the number of samples to be included in a single FFT window when multiple FFT windows are
164. ive TRansition part of a register Setting a bit causes a 1 to 0 transition in the corresponding bit of the associated regis ter The transition also writes a 1 into the associated bit of the corresponding EVENt register Parameters lt SumBit gt Range 0 to 65535 lt ChannelName gt String containing the name of the channel The parameter is optional If you omit it the command works for the currently active channel Usage Query only STATus OPERation PTRansition lt SumBit gt lt ChannelName gt This command controls the Positive TRansition part of the register Setting a bit causes a 0 to 1 transition in the corresponding bit of the associated regis ter The transition also writes a 1 into the associated bit of the corresponding EVENt register Parameters lt SumBit gt Range 0 to 65535 lt ChannelName gt String containing the name of the channel The parameter is optional If you omit it the command works for the currently active channel Usage Query only STATus OPERation EVENt lt ChannelName gt This command queries the contents of the EVENt section of the status register A query deletes the contents of the EVENt section Query parameters lt ChannelName gt String containing the name of the channel The parameter is optional If you omit it the command works for the currently active channel 11 8 11 9 Analyzing MSRA Measurements Return values lt RegisterContents gt Range 0 to 32767
165. lConf Software Operating Manual Note If you close the R amp S DiglConf window using the Close icon the window is minimized not closed If you select the File gt Exit menu item in the R amp S DiglConf window the application is closed Note that in this case the settings are lost and the EX IQ BOX functionality is no longer available until you restart the application using the DiglConf softkey in the R amp S FSW once again Analog Baseband Input Settings The following settings and functions are available to provide input via the optional Ana log Baseband Interface in the applications that support it They can be configured via the INPUT OUTPUT key in the Input dialog box Input Settings Frequency Digital IQ 1 Q Mode Input Config Analog Baseband E S E High Accuracy Timing Trigger Baseband RF IQ File Signal Path Analog I jQ For more information on the optional Analog Baseband Interface see the R amp S FSW I Q Analyzer and l Q Input User Manual Input Source Settings Analog Baseband Input Stato ciao end tie tra e n eu edt deem een 51 COMO Usain cea 51 PUE COMMU ANON TL 51 High Accuracy Timing Trigger Baseband RE cens 52 Center FreQuBRGY M 52 Analog Baseband Input State Enables or disable the use of the Analog Baseband input source for measurements Analog Baseband is only available if the optional Analog B
166. le Remote command SENSe IQ FFT LENGth on page 147 Window Function Advanced FFT mode Basic settings In the I Q analyzer you can select one of several FFT window types The following window types are available e Blackman Harris Flattop Gauss Rectangular 5 Term Remote command SENSe IQ FFT WINDow TYPE on page 148 7 6 2 Data Acquisition and Bandwidth Settings Window Overlap Advanced FFT mode Basic settings Defines the part of a single FFT window that is re calculated by the next FFT calcula tion when using multiple FFT windows Remote command SENSe IQ FFT WINDow OVER1ap on page 148 Window Length Advanced FFT mode Basic settings Defines the number of samples to be included in a single FFT window in averaging mode In single mode the window length corresponds to the Record Length on page 71 Values from 3 to 4096 are available in Manual mode in Advanced FFT mode val ues from 3 to 524288 are available However the window length may not be longer than the FFT Length Remote command SENSe 10 FFT WINDow LENGth on page 147 Capture Offset This setting is only available for applications in MSRA operating mode It has a similar effect as the trigger offset in other measurements it defines the time offset between the capture buffer start and the start of the extracted application data In MSRA mode the offset must be a positive value as the capture buffer st
167. lsewhere e INP SEL DIQ see INPut SELect on page 107 Configuring MSRA Measurements e TRIGger SEQuence LEVel BBPower on page 139 Remote commands for the R amp S DiglConf software always begin with SOURce EBOX Such commands are passed on from the R amp S FSW to the R amp S DiglConf automatically which then configures the R amp S EX IQ BOX via the USB connection All remote commands available for configuration via the R amp S DiglConf software are described in the R amp SGEX IQ BOX Digital Interface Module R amp SGDiglConf Software Operating Manual O Remote commands for the R amp S DiglConf software Example 1 SOURce EBOX RST SOURce EBOX IDN Result Rohde8Schwarz DiglConf 02 05 436 Build 47 Example 2 SOURCe EBOX USER CLOCk REFerence FREQuency 5MHZ Defines the frequency value of the reference clock Remote commands exclusive to digital l Q data input and output INPUEDIOQ CDEN OS 121 IN PutbIOXRANGeSEUPPBetr AUTO 1 esaet pure e E nente he keen x hecha 122 INPut DIO RANGe COUPling iura tuno rrt n n nnn nennen ran dado 123 INPUEDIO RANGe UPP OR M et 123 INPUEDIQ RANGe UPPS UNIT cocina iaa ad 123 INPUEDIQ SRA TO oa A A AAA 123 INPUTS RATE AUTO ri iio 124 INPut DIQ CDEVice This command queries the current configuration and the status of the digital I Q input from the optional Digital Baseband Interface
168. lysis bandwidth and the measurement time the zero span measurement is configured by the center frequency RBW and sweep time settings Internally these time domain settings are converted to the required I Q settings by the I Q Analyzer The time and frequency domain measurements and the required settings are descri bed in detail in the R amp S FSW User Manual User Manual 1175 6455 02 14 30 Measurements in the Time and Frequency Domain Limitations However since the data in the l Q Analyzer application is captured by the Master independently of the specific time or frequency measurement requirements concerning the RBW filter type and number of sweep points in the application some restrictions may apply to these measurements in the I Q Analyzer If not enough samples are available in the captured and converted l Q data for example an error message is dis played in the application The maximum span for a frequency sweep on l Q based data corresponds to the maximum l Q bandwidth see chapter A 3 Sample Rate and Maximum Usable I Q Bandwidth for RF Input on page 173 and chapter A 4 Sample Rates and Band widths for Digital I Q Data on page 180 The maximum resolution bandwidth RBW is 1 MHz Furthermore the following functions are not available for time and frequency domain measurements in multistandard mode Marker demodulation Frequency counter marker e Gated measurement e Video trigger 7 Configurati
169. me on page 46 SENSe CORRection CVL SNUMber lt SerialNo gt This command defines the serial number of the mixer for which the conversion loss table is to be used This setting is checked against the current mixer setting before the table can be assigned to the range Before this command can be performed the conversion loss table must be selected see SENSe CORRection CVL SELect on page 118 This command is only available with option B21 External Mixer installed Parameters lt SerialNo gt Serial number with a maximum of 16 characters Example CORR CVL SEL LOSS TAB 4 Selects the conversion loss table CORR CVL MIX 123 4567 Manual operation See Mixer S N on page 47 Programming Example Working with an External Mixer This example demonstrates how to work with an external mixer in a remote environ ment It is performed in the Spectrum application in the default layout configuration Note that without a real input signal and connected mixer this measurement will not return useful results aaa a a Preparing the instrument Reset the instrument Configuring MSRA Measurements RST Activate the use of the connected external mixer SENS MIX ON 2 Configuring basic mixer behavior Set the LO level of the mixer s LO port to 15 dBm SENS MIX LOP 15dBm Set the bias current to 1 mA SENS MIX BIAS LOW 1mA f2 Configuring the mixer and band se
170. n CVL SELect on page 118 This command is only available with option B21 External Mixer installed Parameters Type string Name of mixer with a maximum of 16 characters Example CORR CVL SEL LOSS TAB 4 Selects the conversion loss table CORR CVL MIX FS Z60 Manual operation See Mixer Name on page 47 SENSe CORRection CVL PORTs lt PortNo gt This command defines the mixer type in the conversion loss table This setting is checked against the current mixer setting before the table can be assigned to the range Before this command can be performed the conversion loss table must be selected see SENSe CORRection CVL SELect on page 118 This command is only available with option B21 External Mixer installed Configuring MSRA Measurements Parameters lt PortType gt 2 3 RST 2 Example CORR CVL SEL LOSS TAB 4 Selects the conversion loss table CORR CVL PORT 3 Manual operation See Mixer Type on page 47 SENSe CORRection CVL SELect lt FileName gt This command selects the conversion loss table with the specified file name If file name is not available a new conversion loss table is created This command is only available with option B21 External Mixer installed Parameters lt FileName gt String containing the path and name of the file Example CORR CVL SEL LOSS TAB 4 Manual operation See New Table on page 44 See Edit Table on page 44 See File Na
171. nalyzed Parameters lt TriggerLevel gt Range 130 dBm to 30 dBm RST 20 dBm Example TRIG LEV IQP 30DBM 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 If defined a reference level offset is also considered The input signal must be between 500 MHz and 8 GHz Configuring MSRA Measurements Parameters lt TriggerLevel gt For details on available trigger levels and trigger bandwidths see the data sheet RST 20 dBm Example TRIG LEV RFP 30dBm TRIGger SEQuence SLOPe lt Type gt 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 Slope on page 67 TRIGger SEQuence SOURce Source 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 continue Make sure this situation is avoided in your remote control programs Configuring MSRA Measurements Parameters Source IMMediate
172. nd Maximum Usable I Q Bandwidth for RF Input Definitions Input sample rate ISR the sample rate of the useful data provided by the device connected to the input of the R amp S FSW Sample Rate and Maximum Usable I Q Bandwidth for RF Input User Output Sample rate SR the sample rate that is defined by the user e g in the Data Aquisition dialog box in the I Q Analyzer application and which is used as the basis for analysis or output e Usable I Q Analysis bandwidth the bandwidth range in which the signal remains undistorted in regard to amplitude characteristic and group delay this range can be used for accurate analysis by the R amp S FSW e Record length Number of l Q samples to capture during the specified measure ment time calculated as the measurement time multiplied by the sample rate For the l Q data acquisition digital decimation filters are used internally in the R amp S FSW The passband of these digital filters determines the maximum usable I Q bandwidth In consequence signals within the usable I Q bandwidth passband remain unchanged while signals outside the usable I Q bandwidth passband are suppressed Usually the suppressed signals are noise artifacts and the second IF side band If frequencies of interest to you are also suppressed you should try to increase the output sample rate since this increases the maximum usable I Q band width Bandwidth extension options D The maximum usable l
173. nd global configuration set tings are controlled globally while the evaluation and display settings can be config ured individually for each application Using the Multi Standard Radio Analyzer unwanted correlations between different signal components using different transmis sion standards can be detected Thus for example an irregularity in a GSM burst can be examined closer in the R amp S FSW 3G FDD BTS W CDMA application to reveal dependencies like a change in the EVM value Multi Standard Real Time mode In order to combine the advantages of the MSRA mode with its correlated measure ments and the gapless results provided by real time measurements a third operating mode has been introduced the Multi Standard Real Time MSRT mode This oper ating mode is only available if one of the real time options R amp S FSW B160R K160RE U160R is installed User Manual 1175 6455 02 14 19 5 1 Available Applications In this operating mode data acquisition is performed once as a real time measure ment and the captured data is then evaluated by any number of applications Thus a real time measurement triggered with a frequency mask can be performed and the results can be evaluated in the VSA application for example to detect the cause of a frequency exception Distinct operating modes Although the applications themselves are identical in all operating modes the handling of the data between applications is not Thus the o
174. nds to Perform Measure ments in MSRA Mode The following commands are specific to performing measurements in MSRA mode in a remote environment Generally the remote commands are identical to those used in Spectrum mode as described in the R amp S FSW User Manual However some restric tions or conditions may apply to specific commands see also chapter 6 MSRA Basics on page 26 You must always switch to MSRA mode before executing any MSRA specific com mands using INST MODE MSR It is assumed that the R amp S FSW has already been set up for remote control in a net work 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 For a description of such tasks see the R amp S FSW User Manual In particular this includes 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 Using the common status registers The following tasks specific to MSRA mode are described here Moore cd 93 COMMON SUMMES 2 oer rers eer ii A a 98 e Activating MSRA Measurements seis enhn enana rana 99 e Configuring MSRA Measurements sssssssssssssseeeeenenn eren 104 e Capturing Data an
175. nstalled Parameters Level VOLT DBM DBPW WATT DBMV DBUV DBUA AMPere RST Volt Manual operation See Full Scale Level on page 49 INPut DIQ SRATe lt SampleRate gt This command specifies or queries the sample rate of the input signal from the optional Digital Baseband Interface see Input Sample Rate on page 49 Parameters lt SampleRate gt Range 1 Hz to 10 GHz RST 32 MHz Example INP DIQ SRAT 200 MHz Manual operation See Input Sample Rate on page 49 11 4 1 4 Configuring MSRA Measurements INPut DIQ SRATe AUTO State If enabled the sample rate of the digital I Q input signal is set automatically by the con nected device This command is only available if the optional Digital Baseband Interface is installed Parameters State ON OFF RST OFF Manual operation See Input Sample Rate on page 49 Configuring Input via the Optional Analog Baseband Interface The following commands are required to control the optional Analog Baseband Inter face in a remote environment They are only available if this option is installed For more information on the Analog Baseband Interface see the R amp S FSW I Q Ana lyzer User Manual Useful commands for Analog Baseband data described elsewhere e INP SEL AIQ see INPut SELect on page 107 e SENSe FREQuency CENTer on page 135 Commands for the Analog Baseband calibration signal are described in the R amp S FS
176. nstrument RST command are indicated as RST values if available Default unit This is the unit used for numeric values if no other unit is provided with the parame ter e Manual operation User Manual 1175 6455 02 14 94 Introduction 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 Example SENSe FREQuency CENTer is the same as SENS FREQ CENT 11 1 3 Numeric Suffixes Some keywords have a numeric suffix if the command can be applied to multiple instances of an object In that case the suffix selects a particular instance e g a mea surement 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 11 1 4 Optional Keywords Some keywords are optional
177. nt Input Input to be entered by the user is displayed in italics 1 3 2 1 3 3 Conventions Used in the Documentation Convention Description Links Links that you can click are displayed in blue font References References to other parts of the documentation are enclosed by quota tion marks 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 instrument or the on screen keyboard is only described if it deviates from the standard operating procedures 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 key board Notes on Screenshots When describing the functions of the product we use sample screenshots These screenshots are meant to illustrate as much as possible of the provided functions and possible interdependencies between parameters The screenshots usually show a fully equipped product that is with all options instal led Thus some functions shown in the screenshots may not be available in your par ticular product configuration Starting the MSRA operating mod
178. nwanted trigger events caused by noise oscillation around the trigger level Trigger Settings 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 For details see the R amp S FSW I Q Analyzer and I Q Input User Manual Remote command TRIGger SEQuence IFPower HYSTeresis on page 139 Trigger Holdoff Trigger Source Defines the minimum time in seconds that must pass between two trigger events Trigger events that occur during the holdoff time are ignored Remote command TRIGger SEQuence IFPower HOLDoff on page 139 Slope 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 141 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 Trigger input parameters are available in the Trigger dialog box Output The R amp S FSW sends a trigger signal to the output connector to be used by connected devices
179. o a new channel this will cause an error Example INST REN IQAnalyzer2 IQAnalyzer3 Renames the channel with the name IQAnalyzer2 to IQAna lyzer3 Usage Setting only 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 Also see e INSTrument CREate NEW on page 99 Parameters lt ChannelType gt Channel type of the new channel For a list of available channel types see INSTrument LIST on page 101 lt ChannelName gt String containing the name of the channel Activating MSRA Measurements Example INST IQ Activates a measurement channel for the I Q Analyzer applica tion evaluation mode INST MyIQSpectrum Selects the measurement channel named MylQSpectrum for example before executing further commands for that channel Usage SCPI confirmed Manual operation See Q Analyzer on page 21 See Analog Demodulation on page 21 See Pulse Measurements on page 21 See GSM on page 21 See Transient Analysis on page 22 See Vector Signal Analysis VSA on page 22 See 3G FDD BTS on page 22 See TD SCDMA BTS on page 22 See cdma2000 BTS on page 22 See 1xEV DO BTS on page 23 See LTE DL on page 23 See New Channel on page 24 SYSTem PRESet COMPatible lt OpMode gt This command defines the operating mode that is activated when you swi
180. ommand SENSe CORRection CVL DATA on page 116 Insert Value Inserts a new position value entry in the table If the table is empty a new entry at 0 Hz is inserted If entries already exist a new entry is inserted above the selected entry The position of the new entry is selected such that it divides the span to the previous entry in half Delete Value Deletes the currently selected position value entry 7 2 3 Input Source Settings Shift x Shifts all positions in the table by a specific value The value can be entered in the edit dialog box The conversion loss function in the preview pane is shifted along the x axis Shift y Shifts all conversion loss values by a specific value The value can be entered in the edit dialog box The conversion loss function in the preview pane is shifted along the y axis Save The conversion loss table is stored under the specified name in the C r_s instr user cv1 directory of the instrument Digital I Q Input Settings The following settings and functions are available to provide input via the optional Digi tal Baseband Interface in the applications that support it These settings are only available if the Digital Baseband Interface option is installed on the R amp S FSW They can be configured via the INPUT OUTPUT key in the Input dialog box input Input Source Power Sensor Frequency Full Scale Level 10 0 dBm o T ence Level i Yes IQR 100 101165
181. on Access MODE gt Multi Standard Radio Analyzer tab MSRA is a special operating mode on the R amp S FSW When you switch the operating mode of a measurement channel to MSRA mode the first time the Sequencer is automatically activated in continuous mode see chap ter 5 3 Using the Sequencer in MSRA Mode on page 24 starting an I Q Analyzer data acquisition with the default settings but with a Spectrum result display The I Q Analyzer menu is displayed providing access to the most important configuration functions Configuring the MSRA Master The MSRA Master is the only channel that captures data It also controls global config uration settings for all applications Thus all settings that refer to data acquisition can only be configured in the MSRA Master tab These settings are deactivated in the con figuration overviews and dialog boxes for all application channels All other settings e g concerning the evaluated data range the display configuration or analysis can be configured individually for each application and the Master Restrictions CD Note that although some restrictions apply to parameters that affect both the MSRA Master and applications see chapter 6 4 Restrictions for Applications on page 29 it does not matter in which order you configure them If any contradictions occur between the captured data and the data to be evaluated error messages are displayed in the status bar of the application and
182. onfiguring the analysis interval described elsewhere e TRACe IQ SRATe on page 149 e TRACe IQ BWIDth on page 148 e TRACe IQ RLENgth on page 149 e SENSe SEWEep TIME on page 159 Remote commands exclusive to MSRA applications The following commands are only available for MSRA application channels Commands Specific to MSRA Applications CAL CUBES IO MOD BE in rtt rea A ada 168 GALGulat lt n gt MSRA ALING SHOW naci inne etri nnne Ran eR Ta RR ead a IRR aaa PAR dae RANA 168 CALCulate lt n gt MSRA ALINEe VALUE cccecceeeeee cece eee ee eee nennen nennen nnne nnns nnn nn nnns 168 CAL CulatesmnMSRAMWINDOWShe IMAL3 ocacion ena aree Recent 169 INI Tiatesh I BEFPISGShL iiir IEEE spe cA ipea aes 169 SENSe MSRACCAP Ture OPEPSel 21 re RRA 169 CALCulate lt n gt IQ MODE lt EvalMode gt This command defines whether the captured I Q data is evaluated directly or if it is converted via FFT to spectral or time data first lt n gt is irrelevant It is currently only available for I Q Analyzer applications in multistandard mode not the MSRA Master Parameters lt EvalMode gt TDOMain Evaluation in time domain zero span FDOMain Evaluation in frequency domain IQ Evaluation using l Q data CALCulate lt n gt MSRA ALINe SHOW This command defines whether or not the analysis line is displayed in all time based windows in all MSRA applications and the MSRA Master lt n gt is
183. onnected Instrument on page 49 INPut DIQ RANGe UPPer AUTO State If enabled the digital input full scale level is automatically set to the value provided by the connected device if available This command is only available if the optional Digital Baseband interface is installed Parameters State ON OFF RST OFF Manual operation See Full Scale Level on page 49 Configuring MSRA Measurements INPut DIQ RANGe COUPling State If enabled the reference level for digital input is adjusted to the full scale level automat ically if the full scale level changes This command is only available if the optional Digital Baseband Interface is installed Parameters State ON OFF RST OFF Manual operation See Adjust Reference Level to Full Scale Level on page 49 INPut DIQ RANGe UPPer Level Defines or queries the Full Scale Level i e the level that corresponds to an I Q sam ple with the magnitude 1 This command is only available if the optional Digital Baseband Interface is installed Parameters Level numeric value Range 1pV to 7 071 V RST 1V Manual operation See Full Scale Level on page 49 INPut DIQ RANGe UPPer UNIT Unit Defines the unit of the full scale level see Full Scale Level on page 49 The availa bility of units depends on the measurement application you are using This command is only available if the optional Digital Baseband Interface is i
184. option supports the following external mixer types 2 Port LO and IF data use the same port 8 Port LO and IF data use separate ports Remote command SENSe MIXer PORTs on page 114 Mixer Settings Harmonics Configuration The harmonics configuration determines the frequency range for user defined bands see Band on page 40 Range 1 2 Mixer Settings Harmonics Configuration Enables the use of a second range based on another harmonic frequency of the mixer to cover the band s frequency range Input Source Settings For each range you can define which harmonic to use and how the Conversion loss is handled Remote command SENSe MIXer HARMonic HIGH STATe on page 112 Harmonic Type Mixer Settings Harmonics Configuration Defines if only even only odd or even and odd harmonics can be used for conversion Depending on this selection the order of harmonic to be used for conversion changes see Harmonic Order on page 41 Which harmonics are supported depends on the mixer type Remote command SENSe MIXer HARMonic TYPE on page 112 Harmonic Order Mixer Settings Harmonics Configuration Defines which order of the harmonic of the LO frequencies is used to cover the fre quency range By default the lowest order of the specified harmonic type is selected that allows con version of input signals in the whole band If due to the LO frequency the conversion is not possible using one harmonic t
185. or the format QBLock the offset of Q data in the output buffer can be calculated as follows of DataBytes Q Data Offset 2 LengthindicatorDigits with LengthIndicatorDigits being the number of digits of the length indicator including the In the example above 41024 this results in a value of 6 for LengthIndica torDigits and the offset for the Q data results in 512 6 518 A 2 Formats for Returned Values ASCII Format and Binary Format When trace data is retrieved using the TRAC DATA Or TRAC IQ DATA command the data is returned in the format defined using the FORMat DATA The possible for mats are described here e ASCII Format FORMat ASCII The data is stored as a list of comma separated values CSV of the measured val ues 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 follows 41024 lt valuel gt lt value2 gt lt value n 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 A 3 Sample Rate a
186. ote command TRIG SOUR IMM see TRIGger SEQuence SOURce on page 141 External Trigger 1 2 3 Trigger Source Trigger Source Data acquisition starts when the TTL signal fed into the specified input connector meets or exceeds the specified trigger level See Trigger Level on page 66 Note The External Trigger 1 softkey automatically selects the trigger signal from the TRIGGER 1 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 1 INPUT connector External Trigger 2 Trigger signal from the TRIGGER 2 INPUT OUTPUT connector Trigger Settings External Trigger 3 Trigger signal from the TRIGGER 3 INPUT OUTPUT connector on the rear panel Remote command TRIG SOUR EXT TRIG SOUR EXT2 TRIG SOUR EXT3 See TRIGger SEQuence SOURce on page 141 Baseband Power Trigger Source Trigger Source Defines triggering on the baseband power for baseband input via the optional Digital Baseband Interface or the optional Analog Baseband interface For more information on the the Digital Baseband Interface or the Analog Baseband Interface see the R amp S FSW I Q Analyzer and l Q Input User Manual Remote command TRIG SOUR BBP see TRIGger SEQuence SOURce on page 141 Digital I Q Trigger Source Trigger Source For applications that process l Q data such as the
187. ovided by the electronic attenuator as much as possible to reduce the amount of mechanical switching required Mechanical attenua tion 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 attenuation 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 For the R amp S FSW85 the mechanical attenuation can be varied only in 10 dB steps 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 132 INPut EATT AUTO on page 132 INPut EATT on page 131 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 Input settings See chapter 7 2 Input Source Settings on page 35 Preamplifier Input Settings If the optional Preamplifier hardware is installed a preamplifier can be activated for the RF input signal You can use a preamplifier to analyze signals from DUTs with low input power For R am
188. p S FSW26 or higher models the input signal is amplified by 30 dB if the pream plifier is activated For R amp S FSW8 or 13 models the following settings are available 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 132 INPut GAIN VALue on page 133 Amplitude 7 3 2 Amplitude Settings for Analog Baseband Input The following settings and functions are available to define amplitude settings for input via the optional Analog Baseband Interface in the applications that support it They can be configured via the AMPT key or in the Amplitude tab of the Input dialog box Amplitude Scale Reference Level Input Settings Offset Unit Full Scale Level Mode Value The input settings provided here are identical to those in the Input Source gt Analog Baseband tab see chapter 7 2 4 Analog Baseband Input Settings on page 50 For more information on the optional Analog Baseband Interface see the R amp S FSW I Q Analyzer and l Q Input User Manual o eene teta xa ment ea de eo sea Rage e Desa aba eae aia e ETE d dE 57 L Shifting the Display OS css sxsciesessesecdassdtenasseasnsancssdsdndesnsndiaiadaedasbaastecedsas 58 Full Scale Level Mode Value oooooccccccccnoccccncnnononccnnonononancnnno nono nanancnnnonananannnnnnnncnninnn 58 Reference Level Defines
189. page 122 Adjust Reference Level to Full Scale Level If enabled the reference level is adjusted to the full scale level automatically if any change occurs Remote command INPut DIQ RANGe COUPling on page 123 Connected Instrument Displays the status of the Digital Baseband Interface connection If an instrument is connected the following information is displayed e Name and serial number of the instrument connected to the Digital Baseband Inter face Used port Sample rate of the data currently being transferred via the Digital Baseband Inter face Level and unit that corresponds to an I Q sample with the magnitude 1 Full Scale Level if provided by connected instrument Remote command INPut DIQ CDEVice on page 121 7 2 4 Input Source Settings DiglConf Starts the optional R amp S DiglConf application This function is available in the In Output menu but only if the optional software is installed Note that R amp S DiglConf requires a USB connection not LAN from the R amp S FSW to the R amp S EX IQ BOX in addition to the Digital Baseband Interface connection R amp S DiglConf version 2 20 360 86 Build 170 or higher is required To return to the R amp S FSW application press any key The R amp S FSW application is dis played with the Input Output menu regardless of which key was pressed For details on the R amp S DiglConf application see the R amp SGEX IQ BOX Digital Inter face Module R amp SGDig
190. perating mode determines which applications are available and active Whenever you change the operating mode the currently active measurement channels are closed The default operating mode is Sig nal and Spectrum Analyzer mode however the presetting can be changed Remote command INST MODE MSR see INSTrument MODE on page 102 Switching between applications When you switch to a new application a set of parameters is passed on from the cur rent application to the new one center frequency and frequency offset reference level and reference level offset 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 Available Applications The R amp S FSW provides some applications in the base unit while others are available only if the corresponding firmware options are installed Currently only applications for base station tests and those that process l Q data are supported in MSRA mode in particular e Q Analyzer e Analog Demodulation e Pulse measurements e GSM Transient Analysis e 3GFDDBTS e TD SCDMA BTS e cdma2000 BTS e 1xEV DO BTS e WLAN Available Applications e Vector Signal Analysis VSA e LTE Downlink MESANE IN a M A trate ne neediest endear 21 Analog DEMO AO o weeds AA uated A alias 21 Pulse Measure Menis iirrainn a 21 GSM
191. 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 105 Impedance For some measurements the reference impedance for the measured levels of the R amp S FSW can be set to 50 Q or 75 Q Input Source Settings 75 Q should be selected if the 50 O input impedance is transformed to a higher impe dance 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 This value also affects the unit conversion see Reference Level on page 54 Remote command INPut IMPedance on page 107 Direct Path Enables or disables the use of the direct path for small frequencies In spectrum analyzers passive analog mixers are used for the first conversion of the input signal In such mixers the LO signal is coupled into the IF path due to its limited isolation The coupled LO signal becomes visible at the RF frequency 0 Hz This effect is referred to as LO feedthrough To avoid the LO feedthrough the spectrum analyzer provides an alternative signal path to the A D converter referred to as the direct path By default the direct path is selected automatically for RF frequencies close to zero Ho
192. ps Before this command can be executed the Sequencer must be activated see SYSTem SEQuencer on page 160 Suffix n irrelevant 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 Manual operation See Sequencer State on page 25 INITiate lt n gt SEQuencer MODE Mode This 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 160 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 SING1e Sequence mode For details on synchronization see the Remote Basics chapter in the R amp S FSW User Manual Suffix n irrelevant Parameters Mode SINGIe 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 per formed 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
193. quency is below that value Note Input Source Settings For the following measurements the YIG Preselector is off by default if available e Q Analyzer and thus in all applications in MSRA operating mode e Multi Carrier Group Delay e GSM e VSA Remote command INPut FILTer YIG STATe on page 106 Input Connector Determines whether the RF input data is taken from the RF INPUT connector default or the optional BASEBAND INPUT I connector This setting is only available if the optional Analog Baseband Interface is installed and active for input It is not available for the R amp S FSW67 or R amp S FSW85 For more information on the Analog Baseband Interface R amp S FSW B71 see the R amp S FSW I Q Analyzer and l Q Input User Manual Remote command INPut CONNector on page 105 7 2 2 External Mixer Settings Access Overview gt Input Frontend gt Input Source gt External Mixer or INPUT OUTPUT gt Input Source Config gt Input Source gt External Mixer If installed the optional external mixer can be configured from the MSRA operating mode Note that external mixers are not supported in MSRA mode For details on using external mixers see the R amp S FSW User Manual MIRED SOCIOS cese aet egeat E E eta eget Verde ee Red E edu oput REI pa dud 38 LEM SCIO 42 e Managing Conversion Loss Tables esses nte nnne nnns 43 e Creating and Editing Conversion Loss Tables
194. r behavior of the sample rate usable I Q bandwidth relationship for bandwidths between 480 MHz and 500 MHz depending on which setting you change For compatibility reasons the relationship of Usable I Q bandwidth 0 8 Output sam ple rate is maintained for bandwidths 480 MHz However in order to make use of the maximum possible sample rate of 600 MHz at the maximum bandwidth of 500 MHZ if you change the bandwidth between 480 MHz and 500 MHz the sample rate is adapted according to the relationship Output sample rate Usable I Q bandwidth 0 833 On the other hand if you decrease the sample rate under 600 MHz the I Q band width is adapted according to the regular relationship of Usable I Q bandwidth 0 8 Output sample rate 1 Q bandwidths for RF input Usable I Q bandwidth MHz Activated option TTT ccc EEE Output sample 10000 rate fout MHz Fig 1 3 Relationship between maximum usable l Q bandwidth and output sample rate for active R amp S FSW B500 Table 1 4 Maximum record length with activated I Q bandwidth extension option B500 Sample rate Maximum record length 100 Hz to 600 MHz 440 MSamples Sample Rates and Bandwidths for Digital I Q Data A 4 Sample Rates and Bandwidths for Digital l Q Data Definitions Clock rate the rate at which data is physically transmitted between the R amp S FSW and the connected device both instruments must be able to process data at this rate the
195. red data or more precisely which data chan nel The MSRA Master display indicates the data covered by each application restric ted to the channel bandwidth used by the corresponding standard by vertical blue lines labeled with the application name For applications that support several standards e g VSA LTE an estimated or user defined bandwidth is indicated MSRA Applications The data captured by the MSRA Master measurement or only parts of it can be eval uated by various applications The measurement channel for each application contains the settings and results for the application data extract from the capture buffer The following figure shows the screen elements specific to the MSRA application tabs MSRA View 33 MSRA Master GSM 3G FDD BTS Ref Level 10 00 d8m Freq 997 5MHz Channel 0 256 Power Rel t Att 20 dB CPICH Slot 1 SymbRate TRG EXT1 2 EVM vs Chip 2 Chip 0 256 Chip 1 Channel information bar for application 2 Analysis interval for current evaluation 3 Result display for analysis interval 4 Analysis line User Manual 1175 6455 02 14 14 Understanding the Display Information The display for the individual MSRA applications is identical to the display in Signal and Spectrum Analyzer mode except for the following differences The analysis interval indicates which part of the capture buffer is being evaluated and displayed in each window The acquisition time indicated in the channel bar
196. rements for the downlink and uplink TS 37 141 defines the tests and test requirements for the MSR BS based on these RF requirements To allow for efficient MSR BS testing TS 37 141 includes test configurations The goal of these test configurations is to significantly reduce the complexity of the many possi ble test scenarios They are limited to the worst case scenarios with the strictest crite ria Thus for example a test configuration is provided for receiver tests in which two signals a GSM carrier and an LTE carrier with a BWehanne 5 MHz are positioned at the lower and upper edge of BWer while maintaining Forrserrar This allows receiver tests to be performed with a configuration that fully utilizes the maximum bandwidth BWee of the MSR BS MSR BS Testing using R amp S FSW Multi Standard Radio Analysis The newly introduced R amp S FSW MSRA mode allows you to capture signals from a multistandard base station and analyze the same data in various standard applications 4 Measurements and Result Displays MSRA measurement The only true measurement in MSRA mode in which l Q data from the input signal is captured and stored is performed by the MSRA Master This data acquisition is per formed as in the I Q Analyzer application i e a specified frequency span of the input signal is swept for a specified measurement time The captured l Q data can then be analyzed in various different applications Result displays The data that
197. s SRate 15 0 MHz Att 20dB Freq 1 0GHz RecLength 00 RBW 14 0 kHz TRG EXT1 1 Spectrum 1001 pts Span 15 0 MHz User Manual 1175 6455 02 14 87 R amp S FSW MSRA Measurement Example Analyzing MSR Signals To analyze the GSM signal Activate an l Q Analyzer to analyze the GSM signal in more detail Only the area around the first carrier is of interest 1 Press the MODE key and select the I Q Analyzer button 2 Press the FREQ key and set the center frequency to 994 9 MHz 3 Press the MEAS CONFIG key select the Data Acquisition softkey and set the Sample Rate to 1 MHz 4 Setthe Meas Time to 5 ms The I Q Analyzer obtains an extract of the data captured by the MSRA Master Which spectrum of the captured data is analyzed is indicated by vertical blue lines in the MSRA Master window see figure 10 1 To analyze the WCDMA signal Activate a measurement channel for the 3GPP FDD BTS application to analyze the WCDMA signal in more detail Now the second carrier is of interest 1 Press the MODE key and select the 3GPP FDD BTS button 2 Press the FREQ key and set the center frequency to 997 5 MHz The 3GPP FDD BTS application obtains an extract of the data captured by the MSRA Master 3 Select the MSRA View tab to see the captured data and the GSM and WCDMA results at once Which spectrum of the captured data is analyzed is indicated by vertical blue lines in the MSRA Master window MSRA View 22 MSRA M
198. s only considered the next time the measurement in that channel is activated by the Sequencer Suffix n irrelevant Capturing Data and Performing Sweeps Parameters State 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 74 INITiate lt n gt IMMediate This command starts a single new measurement You can synchronize to the end of the measurement with OPC OPC or WAI For details on synchronization see the Remote Basics chapter in the R amp S FSW User Manual Suffix lt n gt irrelevant Usage Event Manual operation See Single Sweep RUN SINGLE on page 75 INITiate lt n gt 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 lt n gt SEQuencer IMMediate on page 157 To deactivate the Sequencer use SYSTem SEQuencer on page 160 Suffix n irrelevant Usage Event Manual operation See Sequencer State on page 25 INITiate lt n gt SEQuencer IMMediate This command starts a new sequence of measurements by the Sequencer Its effect is similar to the INITiate lt n gt IMMediate command used for a single measurement Capturing Data and Performing Swee
199. se eene 133 DISPlay WINDow lt n gt TRACe lt t gt Y SCALe AUTO ONCE eseseeeeeeeenenenen 133 DISPlay WINDow n TRACe t Y SCALe MODE eese 134 DISPlay WINDow n TRACe t Y SCALe PDlVision seeseeseseeeeeeeene nee 134 DISPlay WINDow n TRACe t Y SCALe RPOSition sese 134 DISPlay WINDow n TRACe t Y SPACing esses nnne nennt 134 DISPlay WINDow lt n gt TRACe lt t gt Y SCALe Range This command defines the display range of the y axis for all traces t is irrelevant Example DISP TRAC Y 110dB Usage SCPI confirmed Manual operation See Range on page 59 See Y Axis Max on page 60 DISPlay WINDow lt n gt TRACe lt t gt Y SCALe AUTO ONCE Automatic scaling of the y axis is performed once then switched off again for all traces t is irrelevant Usage SCPI confirmed Configuring MSRA Measurements DISPlay WINDow lt n gt TRACe lt t gt Y SCALe MODE Mode This command selects the type of scaling of the y axis for all traces t is irrelevant When the display update during remote control is off this command has no immediate effect Parameters Mode ABSolute absolute scaling of the y axis RELative relative scaling of the y axis RST ABSolute Example DISP TRAC Y MODE REL Manual operation See Scaling on page 59 DISPlay WINDow lt n gt TRACe lt t gt Y SCALe P
200. sh on page 169 Continuous Sweep RUN CONT After triggering initiates data acquisition continuously until stopped If the Sequencer is off only the evaluation for the currently displayed measurement channel is updated R amp S FSW MSRA Configuration 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 controls 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 controls the Sequencer not individual sweeps RUN CONT starts the Sequencer in continuous mode For details on the Sequencer see the R amp S FSW User Manual Remote command INITiate lt n gt CONTinuous on page 156 Single Sweep RUN SINGLE After triggering starts a single data acquisition If the Sequencer is off only the evalua tion for the currently displayed measurement channel is updated 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 high lighted
201. sion options R amp S FSW B500 B320 B160 are deactivated the maximum analysis bandwidth is restricted to 80 MHz This parameter corresponds to the 80 MHZ setting in manual operation RST ON Manual operation See Maximum Bandwidth on page 70 Configuring MSRA Measurements TRACe IQ WBANd MBWIDTH Limit Defines the maximum analysis bandwidth Any value can be specified the next higher fixed bandwidth is used Defining a value other than MAX is useful if you want to specify the sample rate directly and at the same time ensure a minimum bandwidth is available see Restrict ing the maximum bandwidth manually on page 177 Parameters Limit 80 MHz Restricts the analysis bandwidth to a maximum of 80 MHz The bandwidth extension option R amp S FSW B160 B320 B500 is deactivated TRACe IQ WBANd STATe is set to OFF 160 MHz Restricts the analysis bandwidth to a maximum of 160 MHz The bandwidth extension option R amp S FSW B320 is deactivated Not available or required if bandwidth extension option R amp S FSW B500 is installed TRACe IQ WBANd STATe is set to ON 500 MHz 320 MHz MAX All installed bandwidth extension options are activated The cur rently available maximum bandwidth is allowed see chapter A 3 Sample Rate and Maximum Usable l Q Bandwidth for RF Input on page 173 TRACe IQ WBANd STATe is set to ON RST maximum available Default unit Hz Example TRAC IQ WBAN MBW 82
202. ss 55 56 Enhanced mode Digitall 64 180 Errors IFOVED uscar 54 57 Exporting VQ data coat 81 External MIXET ositos orate oe em e ih cre E tele 39 Activating remote control s es 108 Band Basi settings usi oto E traicion Bree R Conversion loss Conversion loss tables oooooocccccoccccccccccconononccnnos 44 45 Frequency range imita atrio Handover frequency Harmonic GOIder z uei ruens spas terat c tenen Iain epic Name Programming example cernentes 118 RAMO sion roban ola ER Restoring bands FRE overrange cuori ata RF Start RF Stop Serial number TYPE kannen ad External iQ QO abc sata tots Level remiote tereti F FFT Window functions 2 cecinit tuno tainen 72 Filters Bandwidth VQ data sse 70 High pass remote tet tate tts 106 High pass RF input YIG remote tna a rere Format BI ENS 173 Data remota Wii ici 161 I Q data files rite reete 172 Free Run Ee I 63 Frequency ConfiguratiOr ctione tret tee rates 60 Configuration remote esee 135 SIE Tm 61 Frontend settings A 104 Full scale level Analog Baseband B71 remote control 125 Analog Baseband B71 sss 58 Digital II ice tn t e em esee 49 Digital I Q remote 122 123 Unit digital I Q remote iriri eisirean 123 G GSM MSRA applicatiori nieto r
203. ste tette tet teet te tentent st od 159 SYSTem SEQUORGG erit rette AA ee vore du dau eo dub A 160 ABORt This command aborts the measurement in the current measurement channel and resets the trigger system To prevent overlapping execution of the subsequent command before the measure ment 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 INITiate lt n gt SEQuencer ABORt command 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 to the R amp S FSW is blocked for further commands In this case you must inter rupt 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 Depend ing on the used interface and protocol send the following commands e Visa viClear e GPIB ibclr e RSIB RSDLLibclr Capturing Data and Performing Sweeps Now you can send the ABORt command on the remote channel performing the mea surement Example ABOR INIT IMM Aborts the current measurement and immediately
204. steresis 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 153 8 O 8 1 Configuring the Analysis Line Analysis The data that was captured by the MSRA Master can be analyzed in various different applications The analysis settings and functions available in MSRA mode are those described for the individual applications The MSRA Master is in effect an I Q Analyzer application and has the same analysis functions and settings See the R amp S FSW I Q Analyzer User Manual for a description of the analysis functions and settings available for the I Q Analyzer and thus the MSRA master Configuring the application data extract and analysis interval The settings required to configure the application data extract or analysis intervals vary depending on the application See the corresponding application manuals for details For the I Q Analyzer the settings are the same as those used to define the actual data acquisition see chapter 7 6 1 Data Acquisition on page 68 In MSRA application channels they define
205. surement Time Meastime Manual 79 Upper Level Hysteresis naeia innin nnana aaaeaii aaa akhna daadaa aeai 79 ower Laval Hystarosis cei Doom i lend e oce o R 80 Adjusting all Determinable Settings Automatically Auto AII Activates all automatic adjustment functions for the current measurement settings This includes e Auto Level Note MSRA operating modes In MSRA operating mode this function is only available for the MSRA Master not the applications Remote command SENSe ADJust ALL on page 152 Adjusting the Center Frequency Automatically Auto Freq The R amp S FSW adjusts the center frequency automatically Automatic Settings The optimum center frequency is the frequency with the highest S N ratio in the fre quency span As this function uses the signal counter it is intended for use with sinus oidal signals Remote command SENSe ADJust FREQuency on page 153 Setting the Reference Level Automatically Auto Level Automatically determines a reference level which ensures that no overload occurs at the R amp S FSW for the current input data At the same time the internal attenuators and the preamplifier for analog baseband input the full scale level are adjusted so the sig nal to noise ratio is optimized while signal compression and clipping are minimized To determine the required reference level a level measurement is performed on the R amp S FSW If necessary you can
206. t LIST on page 101 Activating MSRA Measurements 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 INSTrument LIST on page 101 Example INST CRE IQ IQAnalyzer2 Adds an additional I Q Analyzer channel named IQAnalyzer2 Manual operation See New Channel on page 24 INSTrument CREate REPLace lt ChannelName1 gt lt ChannelType gt lt ChannelName2 gt This command replaces a measurement channel with another one Setting parameters ChannelName1 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 INSTrument LIST on page 101 lt ChannelName2 gt String containing the name of 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 INSTrument LIST on page 101 Example INST CRE REPL IQAnalyzer2 IQ IQAnalyzer Replaces the channel named IQAnalyzer2 by a new measure ment channel of type IQ Analyzer named IQAnalyzer Usage Setting only Manual operation See Replace Current Channel on page 24 INSTrument DELete lt ChannelName gt
207. t is defined as an offset to the beginning of the capture buffer Thus the beginning of the application data extract is calculated as time of trigger event trigger offset capture offset Note that while the trigger offset value may be negative thus starting before the trigger event the capture offset may not A negative capture offset would mean the applica tion data would start before the first sample of the capture buffer The pre trigger off set in the MSRA Master must be configured such that the required number of pre trig ger samples for the applications are available Analysis line A frequent question when analyzing multi standard radio signals is how each data channel is correlated in time to others Thus an analysis line has been introduced The analysis line is a common time marker for all MSRA applications It can be posi tioned in any MSRA application or the MSRA Master and is then adjusted in all other applications Thus you can easily analyze the results at a specific time in the measure ment in all applications and determine correlations e g cross talk If the marked point in time is contained in the analysis interval of the application the line is indicated in all time based result displays such as time symbol slot or bit dia grams By default the analysis line is displayed however it can be hidden from view manually In all result displays the AL label in the window title bar indicates whether
208. tandards Multiple analyzing rrt itte 16 Status Capture finished Status bar Status registers Querying remote nse apte t Hee 164 STAT QUES POW eit rie eter 104 STATUS OPERAtION curia Adie 164 STATUS OPERAtION sucias tee 27 Suffixes COMMON sisii Remote commands Sweep ADOR NG oiiro TN MSRA attired lio dotes Performing remote is Points I Q Analyzer sssssseeeee 74 jul rc M M 73 TIME REMOLE eite trie tiet ed 159 Sweep status Status register eo eerte te Pin 164 T Tabs Channels duree esten d i Bie hs tonta Pen ERU MSRA Master MSRA VIEW iiic tods TD SCDMA BTS MSRA application uet ia 22 Time trigger Repetition interval 2 ri 66 TPIS lem m 149 Traces Maximum number Retrieving data remote Transient Analysis APplicati n sons 22 Trigger Configuration softkey onooiocnccnnnncincoconccncnrnncnnnnns 61 D r p OULtiIme uoce cts Coi te de tratte a or bx SER Das 66 External remote essen 141 Holdoff Hysteresis Offset Offset softkey Output 62e Remote control DIODES S ep M M Status register Trigger level sico 2x External trigger remote sssssss VQ Power remote seen 140 IF Power remote
209. tbe oett etus eti pe tad open etr cepe d E 165 STATUS OPERatinENABle x rrr e eei e cuore oe b ades eco Eroa aa NNE 165 STATus OPERation NTRAtSILOE Lao ioo cdi Ree MMRERIHs 166 STATUus OPERati n P TRASIUOR 1 2 11 ise Inca dance nina eaa ETa R raD EE e cR avene daniela 166 STATus OPERA en EVEN oia AA A RA 166 STATus OPERation CONDition lt ChannelName gt This comand reads out the CONDition section of the status register The command does not delete the contents of the EVENt section Query parameters lt ChannelName gt String containing the name of the channel The parameter is optional If you omit it the command works for the currently active channel Usage Query only STATus OPERation ENABle lt SumBit gt lt ChannelName gt This command controls the ENABle part of the register The ENABle part allows true conditions in the EVENt part of the status register to bere ported in the summary bit If a bit is 1 in the enable register and its associated event bit transitions to true a positive transition will occur in the summary bit reported to the next higher level Querying the Status Registers Parameters lt SumBit gt Range 0 to 65535 lt ChannelName gt String containing the name of the channel The parameter is optional If you omit it the command works for the currently active channel Usage Query only STATus OPERation NTRansition lt SumBit gt lt ChannelName gt This command controls the Negat
210. tch on the R amp S FSW or press the PRESET key For details on operating modes see chapter 5 Applications and Operating Modes on page 19 Parameters lt OpMode gt SANalyzer Default Defines Signal and Spectrum Analyzer operating mode as the presetting MSRA Defines Multi Standard Radio Analysis MSRA as the preset default operating mode RTSM Defines Multi Standard Real Time MSRT as the preset default operating mode RST SAN Usage Event SYSTem PRESet CHANnel EXECute This command restores the default instrument settings in the current channel Use INST SEL to select the channel 11 4 11 4 1 11 4 1 1 Configuring MSRA Measurements 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 34 Configuring MSRA Measurements e Configuring Input Output and Frontend Settings sssssssssssuss 104 e oS ERIS NUI URS a NE EUR NEN ARQERS MER AURIS NDA TM UNTERE 137 e Configuring Dotar ACQUIS OM ctr o ene nte epa hn re xen e n eR ere LR RR RIS 145 e Adjusting Settings Automatically cecinere 151 Configuring Input Output and Frontend Settings The following commands are required to define input output and frontend settings Any settings related to data acquisition or data output are only ava
211. the analysis interval Be sure to select the correct measurement channel before executing these commands Exporting I Q Data Access Save Recall gt Export The captured l Q data from the MSRA Master can be exported for further analysis in external applications For details on exporting I Q data see the R amp S FSW l Q Analyzer User Manual Configuring the Analysis Line Access toolbar The analysis line is a common time marker across all applications only available in MSRA mode You can hide or show and change the position of the analysis line in each application The current position of the analysis line is indicated on the icon Show Line O O ce aco deeb eee Detlev ee e xb enter aie sete eet odie ces cs 82 inter a I RECTE DUTIES a 82 Configuring the Analysis Line Position Defines the position of the analysis line in the time domain The position must lie within the measurement time of the multistandard measurement Remote command CALCulate lt n gt MSRA ALINe VALue on page 168 Show Line Hides or displays the analysis line in the time based windows By default the line is displayed Note even if the analysis line display is off the indication whether or not the currently defined line position lies within the analysis interval of the active application remains in the window title bars Remote command CALCulate lt n gt MSRA ALINe SHOW on page 168 9 How to Perform Measurements in MSRA Mode The
212. the icon disappears e The Hicon indicates that an error or warning is available for that measurement channel This is particularly useful if the MSRA View tab is displayed An orange IQ indicates that the results displayed in the MSRA application s no lon ger match the data captured by the MSRA Master The IQ disappears after the results in the application s are refreshed R amp S9FSW MSRA Welcome to the MSRA Operating Mode LEM EIN e MSRA m 1 MSRA Master Ref Level 0 dr Meas Time 21 SRate 10 Att 1008 Freq 1325 GHz RecLength 21000 RBW L pe 1 Spectrum Q 6 7 Magnitude 1 MSRA View overview of all active channels in MSRA mode 2 MSRA Master data acquisition channel with global configuration settings 3 Measurement channel tab for individual MSRA application 4 Channel bar for firmware and measurement settings of current application 5 6 Window title bar with diagram specific trace information and analysis interval applications 7 Diagram area 8 Diagram footer with diagram specific information depending on evaluation 9 Instrument status bar with error messages progress bar and date time display The diagram area varies depending on the type of measurement channel as described in detail in the following topics Window title bar information For each diagram the header provides the following information 1 Magnitude ysis Interval Fig 2 1 Window title bar information in MSRA mode
213. the val ues of the MSRA Master Capture offset must be smaller than the record length of the MSRA Master Trace averaging only for sweep count 0 e AUTO SET functions in applications only the frequency can be adjusted auto matically all other adjustment functions require a new data acquisition General restrictions concerning sample rates and maximum usable l Q bandwidths for 1 Q data also apply in MSRA mode see the R amp S FSW l Q Analyzer User Manual for details 6 5 Measurements in the Time and Frequency Domain The I Q Analyzer application not Master in multistandard mode can also perform measurements on the captured l Q data in the time and frequency domain In order to do so the I Q Analyzer performs an FFT sweep on the captured l Q data providing power vs frequency results or uses the RBW filter to obtain power vs time zero span results This data is then used for the common frequency or time domain measure ments provided by the R amp S FSW Spectrum application such as ACLR SEM or CCDF Configuration Apart from the data capturing process the measurements are identical in the Spectrum and I Q Analyzer applications They are configured using the same settings and pro vide the same results The Magnitude result display in the I Q Analyzer for instance will principally show the same results as the zero span measurement for the same data However while the Magnitude evaluation is configured by the I Q ana
214. ting the MSRA operating mode eeseeeeeeeeeeeeneeen enne nnn 9 2 2 Understanding the Display Information eene 10 3 Typical AppIICatlONS ereecuu runtur orania nina ann nn Ke erui nona natur prae aane 16 4 Measurements and Result Displays eeeeeeee 17 5 Applications and Operating Modes eeees 19 5 1 Available ApplicatiONS ccococononcnnnnoonccncncnnnonennnnannnnnnnncnnnnnnnnnnnnnnnn nn nan cn ner nr narran 20 5 2 Selecting the Operating Mode and ApplicatiON ooococcconncccconnnosceccnonnnscencnnnarnnennns 23 5 3 Using the Sequencer in MSRA Mode esee enne 24 60 MSRA Bas 26 6 1 Configuration 26 6 2 Data Acquisition ies anat eea aae aaa REB ER URERERRENRAXRM MARNE RRRER cia Anda 27 6 3 Multi Standard Analysis sees ercer 28 6 4 Restrictions for ApplicatiONS ccoomnnnnonoononcccncnncnonennnnnnnnannnncnnnnnnnnnnnnnnnnnnannnnnnnnes 29 6 5 Measurements in the Time and Frequency Domain eene 30 T CONTIQUIAN ON e M 32 7 1 Configuration Overview ecuaciones sana eine dde cananea 33 7 2 Input Source Settings niece eene nuam nna bn nna kk uana kk RR Rn RR ka RR nana 35 7 3 IUUD iii enanas a rrada eneur kanadar Daaa Aaa N iaratn i Enua iirf Eisd
215. to a total of 6 to analyze the data in the configured interval Arrange them on the display to suit your preferences T Exit the SmartGrid mode Repeat these steps for any other applications How to perform multi standard analysis of the I Q data 1 Perform a single l Q data aquisition measurement as described in How to capture I Q data in MSRA mode on page 83 2 Activate measurement channels for the MSRA applications you require as descri bed in How to analyze the captured l Q data in MSRA applications on page 84 3 Select the MSRA View to get an overview of the captured data and the configured applications Determine the individual data ranges that are relevant for a specific standard If necessary adapt the application data and analysis interval settings for the applica tions to reflect the relevant data ranges 4 Ifthe results indicate that dependencies between different standards in the signal may exist a Select the application in which unusual data occurs b If necessary perform a new data acquisition c Determine the bandwidth or measurement time of the unusual data d Select the MSRA View to compare the data with the other standard applica tions If a specific event e g a burst spur etc occurs in another standard at the same time as the unusual data in the first application the two effects may be correlated e Select the possibly dependant standard application f Define an analysis interval for
216. trument is performing a calibration 1 2 Not used 3 SWEeping Sweep is being performed in base unit applications are not considered identical to bit 4 In applications this bit is not used 4 MEASuring Measurement is being performed in base unit applications are not considered identical to bit 3 In applications this bit is not used 5 Waiting for TRIgger Instrument is ready to trigger and waiting for trigger signal 6 7 Not used 8 HardCOPy in progress This bit is set while the instrument is printing a hardcopy Querying the Status Registers Bit No Meaning 9 For data acquisition in MSRA mode only For data acquisition in MSRA mode only Multi Standard capture finish This bit is set if a data acquisition measurement was completed successfully in MSRA operating mode and data is available for evaluation For details on the MSRA operating mode see the R amp S FSW MSRA User Manual For details on the MSRT operating mode see the R amp S FSW Real Time Spectrum Application and MSRT Operating Mode User Manual 10 Range completed This bit is set when a range in the sweep list has been completed if Stop after Range has been activated 11 14 Not used 15 This bit is always 0 11 7 2 Commands to Query the STATus OPERation Register The following commands are required to query the contents of the STATus OPERation register STATUS OPER ao CONDIHOF i td nri
217. ttings Use band V to full possible range extent for assigned harmonic 6 SENS MIX HARM BAND V SENS MIX RFOV ON Query the possible range SENS MIX FREQ STAR Result 47480000000 47 48 GHz SENS MIX FREQ STOP Result 138020000000 138 02 GHz Use a 3 port mixer type SENS MIX PORT 3 Split the frequency range into two ranges range 1 covers 47 48 GHz GHz to 80 GHz harmonic 6 average conv loss of 20 dB range 2 covers 80 GHz to 138 02 GHz harmonic 8 average conv loss of 30 dB SENS MIX HARM TYPE EVEN SENS MIX HARM HIGH STAT ON SENS MIX FREQ HAND 80GHz SENS MIX HARM LOW 6 SENS MIX LOSS LOW 20dB SENS MIX HARM HIGH 8 SENS MIX LOSS HIGH 30dB a Activating automatic signal identification functions Activate both automatic signal identification functions SENS MIX SIGN ALL Use auto ID threshold of 8 dB SENS MIX THR 8dB Select single sweep mode INIT CONT OFF Initiate a basic frequency sweep and wait until the sweep has finished INIT WAI Return the trace data for the input signal without distortions default screen configuration TRAC DATA TRACE3 Configuring a conversion loss table for a user defined band asa ei iei Preparing the instrument Reset the instrument Configuring MSRA Measurements RST Activate the use of the connected external mixer SENS MIX ON A Configuring a new conversion loss table
218. ubleshooting 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 func tions eliminated problems and last minute changes to the documentation The corre sponding firmware version is indicated on the title page of the release notes The most recent release notes are also available for download from the Rohde amp Schwarz website on the R amp S FSW product page at http www rohde schwarz com product FSW html Downloads Firmware Application Notes Application notes application cards white papers and educational notes are further publications that provide more comprehensive descriptions and background informa tion The latest versions are available for download from the Rohde amp Schwarz web site at www rohde schwarz com appnote 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 ments dialog boxes menus options buttons and softkeys are enclosed by quotation 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 fo
219. um signal level to ensure an optimum measurement no compression good signal to noise ratio Note that for input from the External Mixer R amp S FSW B21 the maximum reference level also depends on the conversion loss see the R amp S FSW l Q Analyzer and l Q Input User Manual for details Remote command DISPlay WINDow lt n gt TRACe lt t gt Y SCALe RLEVel on page 130 Shifting the Display Offset Reference Level Defines an arithmetic level offset This offset is added to the measured level In some result displays 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 The setting range is 200 dB in 0 01 dB steps Note however that the internal reference level used to adjust the hardware settings to the expected signal optimally ignores any Reference Level Offset Thus it is impor tant to keep in mind the actual power level the R amp S FSW must handle and not to rely on the displayed reference level internal reference level displayed reference level offset Remote command DISPlay WINDow lt n gt TRACe lt t gt Y SCALe RLEVel OFFSet on page 130 RF Attenuation Defines the attenuation applied to the RF input of the R amp S FSW Attenuation Mode Value RF Attenuation The RF attenuation
220. umber of the external mixer for which the table is to be applied The specified number is checked against the currently connected mixer number before the table can be assigned to the range Remote command SENSe CORRection CVL SNUMber on page 118 Mixer Type Specifies whether the external mixer for which the table is to be applied is a two port or three port type This setting is checked against the current mixer setting before the table can be assigned to the range Remote command SENSe CORRection CVL PORTs on page 117 Position Value Each position value pair defines the correction value for conversion loss for a specific frequency The reference values must be entered in order of increasing frequencies A maximum of 50 reference values can be entered To enter a new value pair select an empty space in the Position Value table or select the Insert Value button Correction values for frequencies between the reference values are obtained by inter polation Linear interpolation is performed if the table contains only two values If it con tains more than two reference values spline interpolation is carried out Outside the frequency range covered by the table the conversion loss is assumed to be the same as that for the first and last reference value The current configuration of the conversion loss function as described by the position value entries is displayed in the preview pane to the right of the table Remote c
221. unit and each additional firmware application The user manuals are available in PDF format in printable form on the Documenta tion DVD delivered with the instrument In the user manuals all instrument functions are described in detail Furthermore they provide a complete description of the remote control 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 soft ware functions that enhance the basic functionality for various applications are descri bed here An introduction to remote control is provided as well as information on main tenance instrument interfaces and troubleshooting Conventions Used in the Documentation In the individual application manuals the specific instrument functions of the applica tion are described in detail For additional information on default settings and parame ters refer to the data sheets Basic information on operating the R amp S FSW is not inclu ded in the application manuals All user manuals are also available for download from the Rohde amp Schwarz website on the R amp S FSW product page at http www rohde schwarz com product FSW html Service Manual This manual is available in PDF format on the Documentation DVD delivered with the instrument It describes how to check compliance with rated specifications instrument function repair tro
222. used Parameters lt NoOfFFT gt Example Usage Manual operation integer value Range 3 to 1001 RST 1001 IQ FFT WIND LENG 500 SCPI confirmed See Window Length on page 73 Configuring MSRA Measurements SENSe IQ FFT WINDow OVERIap Rate Defines the part of a single FFT window that is re calculated by the next FFT calcula tion Parameters Rate double value Percentage rate Range 0 to 1 RST 0 75 Example IQ FFT WIND OVER 0 5 Half of each window overlaps the previous window in FFT calcu lation Usage SCPI confirmed Manual operation See Window Overlap on page 73 SENSe IQ FFT WINDow TYPE Function In the I Q Analyzer you can select one of several FFT window types Parameters Function BLACkharris Blackman Harris FLATtop Flattop GAUSsian Gauss RECTangular Rectangular P5 5 Term RST FLAT Example IQ FFT WIND TYPE GAUS Usage SCPI confirmed Manual operation See Window Function on page 72 TRACe IQ BWIDth This command defines or queries the bandwidth of the resampling filter The bandwidth of the resampling filter depends on the sample rate Parameters Bandwidth For details on the maximum bandwidth see chapter A 3 Sam ple Rate and Maximum Usable I Q Bandwidth for RF Input on page 173 Configuring MSRA Measurements Manual operation See Analysis Bandwidth on page 70 TRACe IQ RLENgth lt NoOfSamples gt This command sets the record
223. verview gt Input Frontend gt Input Source gt External Mixer gt Basic Settings or INPUT OUTPUT gt Input Source Config gt Input Source gt External Mixer gt Basic Settings The basic settings concern general use of an external mixer They are only available if the External Mixer State is On Frequency Basic Settings Mixer Settings Conversion Loss Table Bias Settings Range 1 External Mixer Signal ID Bias Settings Range 2 Auto ID Bias Value MOROS 10 0 dB LO L ve p 42 aona D e 42 AOO aaran oe a a ee E a E 43 Auto ID Threshold dicet eme a a wa a et 43 Blas Settings isis rette crei red ced oe te ER ted 43 L Write to CVL table name teens 43 LO Level Defines the LO level of the external mixer s LO port Possible values are from 13 0 dBm to 17 0 dBm in 0 1 dB steps Default value is 15 5 dB Remote command SENSe MIXer LOPower on page 108 Signal ID Activates or deactivates visual signal identification Two sweeps are performed alter nately Trace 1 shows the trace measured on the upper side band USB of the LO the test sweep trace 2 shows the trace measured on the lower side band LSB i e the reference sweep Note that automatic signal identification is only available for measurements that per form frequency sweeps not in the VSA the l Q Analyzer or the Real Time application for instance Mathematical functions with traces and trace copy cannot be
224. view Input Frontend Amplitude or AMPT Amplitude Config Amplitude settings determine how the R amp S FSW must process or display the expected input power levels Amplitude settings for input from the optional Analog Baseband interface are described in chapter 7 3 2 Amplitude Settings for Analog Baseband Input on page 57 Amplitude Reference Level Input Settings Value Preamplifier Offset Input Coupling Unit Impedance Electronic Attenuation State Mode Auto Value Reference Level occiso 54 L Shifting the Display Offset tete nnns 55 RF ASW ATION C 55 L Attenuation Mode ValUC c cccccccscessscscscseescscscssssscsssssseseecsssssssssesseeeeeseeeens 55 Using Electronic Atle mu t OE ina 56 Mpt SOUNGE P 56 L Preamplifier c c cecccescscscsessscscscesescscscscscscscsesesececsvevecsesesusesesevevscssscseseesesevenes 56 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 OVLD for analog baseband or digitial baseband input R amp S FSW MSRA Configuration The reference level is also used to scale power diagrams the reference level is then used as the maximum on the y axis Since the hardware of the R amp S FSW is adapted according to this value it is recom mended that you set the reference level close above the expected maxim
225. was captured by the MSRA Master can be evaluated in various different applications All evaluation modes available for the MSRA applications are displayed in the selection bar in SmartGrid mode O For details on working with the SmartGrid see the R amp S FSW Getting Started manual The result displays available in MSRA mode are those described for the individual applications The MSRA Master is implemented as an I Q Analyzer application and has the same result displays See the R amp S FSW I Q Analyzer User Manual for a description of the result displays available for the I Q Analyzer and thus the MSRA Master Measurements in the time and frequency domain The I Q Analyzer application not Master in MSRA mode can also perform measure ments on the captured l Q data in the time and frequency domain see also chap ter 6 5 Measurements in the Time and Frequency Domain on page 30 This allows you to perform standard specific and general power measurements such as ACLR or SEM or statistical evaluations as well as analyzing the EVM or modula tion accuracy on the same captured l Q data R amp S9FSW MSRA Measurements and Result Displays A H T e ee Tuque MSRA View EE MSRA Master 36 FOO BTS Ref Le SRate MSRA Master aet Raw 1 Spectrum CF 1 0 GHz 1001 pts 10 0 M i Raf Level m Rent 1 Chanel 0 256 Ra TQ Analyzer age dB SWI 69 7242 VBW Auto FF IGFOD BTS a
226. wever this behavior can be deactivated If Direct Path is set to Off the spectrum analyzer always uses the ana log mixer path Auto Default The direct path is used automatically for frequencies close to zero Off The analog mixer path is always used Remote command INPut DPATh on page 105 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 analyzer in order to measure the harmonics for a DUT for example This function requires an additional hardware option 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 suppressed sufficiently by the YIG filter Remote command INPut FILTer HPASs STATe on page 106 YIG Preselector Activates or deactivates the YIG preselector if available on the R amp S FSW An internal YIG preselector at the input of the R amp S FSW ensures that image frequen cies 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 YIG preselector at the input of the R amp S FSW which may lead to image frequency display Note that the YIG preselector is active only on frequencies greater than 8 GHz There fore switching the YIG preselector on or off has no effect if the fre
227. xam ple for manual operation described in chapter 10 Measurement Example Analyzing MSR Signals on page 86 Preset RST Select Trace data output format ASCII FORM ASCII Switch to MSRA mode INST MODE MSR Set Sequencer in single mode INIT SEQ MODE SING Preconfigure MSRA Master for general I Q data acquisition Set initial center frequency FREQ CENT 1000MHz Set Level DISP WIND TRAC Y SCAL RLEV 10 dBm Set Trigger to External 1 TRIG SOUR EXT Set Sample Rate to 15MHz TRACe IQ SRATe 15E6 Set Record Length to 1Msample gt AQT 21 ms TRACe IQ RLENgth 315000 Create new measurement channel for I Q Analyzer INST CRE IQ IQ Analyzer Programming Example Analyzing MSR Signals Set initial center frequency FREQ CENT 994 9 MHz Set Sample Rate to 1MHz TRACe IQ SRATe 1E6 Set Record Length to 1Msample gt AQT 5 ms TRACe IQ RLENgth 5000 Create measurement channel for 3GPP FDD BTS application INST CRE BWCD 3GPP FDD BTS Set initial center frequency FREQ CENT 997 5MHz Select Composite EVM vs slot in Window 1 EVM vs Chip in Window 3 Result Summary remains in Window 2 as default LAY REPL WIND 1 CEVM LAY ADD WIND 2 BEL EVMC Result new window is 5 Meas all tabs with synchronisation in MSRA mode INIT SEQ IMM OPC Retrieve Results of IQ Analyzer INST SEL IQ Analyzer Check for Rising edge CALCulate MARKer X 1 14ms CALCulate MARKer Y
228. y of the R amp S FSW By default the command returns all 1 Q data in the memory You can however narrow down the amount of data that the command returns using the optional parameters Retrieving Results Parameters lt OffsetSamples gt Selects an offset at which the output of data should start in rela tion to the first data If omitted all captured samples are output starting with the first sample Range 0 to lt of samples 1 with lt of samples being the maximum number of captured values RST 0 lt NoOfSamples gt Number of samples you want to query beginning at the offset you have defined If omitted all captured samples starting at offset are output Range 1 to lt of samples gt lt offset samples gt with lt of samples gt maximum number of captured values RST lt of samples gt Return values lt QData gt Measured value pair 1 Q for each sample that has been recor ded The data format depends on FORMat DATA Default unit V Example TRAC IQ STAT ON Enables acquisition of I Q data TRAC IQ SET NORM 10MHz 32MHz EXT POS 100 4096 Measurement configuration Sample Rate 32 MHz Trigger Source External Trigger Slope Positive Pretrigger Samples 100 Number of Samples 4096 INIT WAI Starts measurement and wait for sync FORMat REAL 32 Determines output format To read the results TRAC 1Q DATA MEM Reads all 4096 I Q data TRAC IQ DATA MEM 0 2048 Reads 204
229. y span of the input signal is swept for a specified measurement time Capturing Data and Performing Sweeps As soon as data has been stored to the capture buffer successfully a status bit 9 in o the STAT OPER register is set see chapter 11 7 1 STATus OPERation Register on page 164 Once the bit has been set the device under test can already be recon figured while the R amp S FSW performs analysis on the captured data For measure ments that require long measurement times and comprehensive analysis tasks using the capture finished information can reduce the overall measurement time signifi cantly See also e INITiate lt n gt REFResh on page 169 POOP M Rm 155 INI Tiate sh CON MGS sno 1 2 5 EE IIo EET Re eae eed edn 156 INITiate sns CONTINUOUS incer Rettore ne eo raria ERR Inr aA E Ree D n dR araa eNi 156 Il rratensrIMMeiale oia ertet tex ete nene cenar 157 INITiatesh SEQuencerABOREL rit rne vane Io eva Ob pc UNN N E RII FR RE N TOERE 157 INITiate lt n gt SEQuencer IMMediate cccccecccceecccessseeceaccceceaeecesseeeceaeeeesuseeseeeeeseneeeeas 157 INITiate lt n gt SEQuencer MODE c ccccccssceceeccceceececeseseeceeeeeecaaeeseseseeteeeseesagecesuaseesanees 158 INI TIatesnsSEQuencerREFResh pALL 1 1 recorte ttti tette aa a Inn 159 SENS amp e SWEep POINIS 2 ere ue arsina bi 159 SENSe SWEep TIME ce
230. ying the Status RegisterS oomnoonnnnncinnnncnnnnnnnnnnccnnarrcnnncc cnn arre 164 Analyzing MSRA MeasurementS oonmoccccccnnonnccnnnnnnncnoncnnnnncn nn nnnn corn n ran crac cnn rra 167 Commands Specific to MSRA ApplicatiOns oooccccconnnnnnoonencccnnnnenencnnnnannananennns 167 Programming Example Analyzing MSR Signals eee 170 o fee PP 172 Reference Format Description for I Q Data Files cssssss 172 Formats for Returned Values ASCII Format and Binary Format 173 Sample Rate and Maximum Usable I Q Bandwidth for RF Input 173 Sample Rates and Bandwidths for Digital I Q Data esses 180 List of Remote Commands MSRA eene 182 o M n 186 About this Manual 1 Preface 1 1 About this Manual This R amp S FSW MSRA User Manual provides all the information specific to the oper ating mode 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 MSRA Operating Mode Introduction to and getting familiar with the operating mode Typical Applications Example me
231. ys up to a total of 6 required to control the acquired data Arrange them on the display to suit your preferences 9 Exit the SmartGrid mode 10 Optionally stop continuous measurement mode by the Sequencer and perform a single data acquisition a Select the Sequencer icon E from the toolbar b Set the Sequencer state to OFF c Press the RUN SINGLE key 11 Optionally export the captured or analyzed l Q data depending on the active channel to a file a Select the El Save icon in the toolbar b Select the I Q Export softkey c Define a file name and storage location and select Save The captured data is stored to a file with the extension iq tar Now you can analyze the captured I Q data in various MSRA applications at the same time How to analyze the captured I Q data in MSRA applications 1 Press the MODE key and select an MSRA application 2 Select the Overview softkey to display the Overview for the MSRA application 3 Define the application data extract i e the range of the capture buffer you want to analyze in this application 4 Define the analysis interval i e the frame number or similar within the application data you want to analyze in this application not necessary for I Q Analyzer or Ana log Demodulation applications 5 Select the Frequency button and define the center frequency for the analysis interval 6 Select the Display Config button and select other displays up
232. z to 600 MHz 320 MHz User Manual 1175 6455 02 14 177 Sample Rate and Maximum Usable I Q Bandwidth for RF Input Usable I Q bandwidth 1 Q bandwidths for RF input MHz Activated option 320 LLLELLELLLLELLLLLLLI 532010320 A TET TT TT PETE T TTT TT TTT ET AT LLLELLELLLECE LLIALLI PET TT TTT ET TT Ty yy tT TT TTT TT TT tty tt PET TTT TTT TAT ET B LA TLLLLLLLL V ILLLLLLII tata tt ET ET TT PTET TT ATT ET FETT TAT TEE EEE LL LLL LLLLLELLLLLLIT PEE TT ETT ETT TT APPLE Output sample 40 80 120 160 200 240 280 320 360 400 10000 rate fa MHz Fig 1 2 Relationship between maximum usable I Q bandwidth and output sample rate for active R amp S FSW B320 Table 1 3 Maximum record length with activated I Q bandwidth extension option B320 or U320 Sample rate Maximum record length 100 Hz to 200 MHz 440 MSamples 200 MHz to 468 MHz 470 MSamples sample rate 1GHz 468 MHz to 600 MHz 220 MSamples for sample rates lt 200 MHz the I Q Bandwidth Extension B320 is not used A 3 9 Max Sample Rate and Bandwidth with Activated I Q Bandwidth Extension Option B500 The bandwidth extension option R amp S FSW B500 provides measurement bandwidths up to 500 MHz Sample rate Maximum I Q bandwidth 100 Hz to 600 MHz proportional up to maximum 500 MHz 500 MHz Sample Rate and Maximum Usable I Q Bandwidth for RF Input Bandwidths between 480 MHz and 500 MHz Note the irregula

R&S®FSW MSRA Mode User Manual

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R&amp;S&reg;FSW MSRA Mode User Manual

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R&S®FSW MSRA Mode User Manual