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Rohde & Schwarz CMW-KM645 User Manual

Rohde & Schwarz CMW-KM645 User Manual

Fm stereo radio
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R&S
CMW-KM645
FM Stereo Radio
Firmware Applications
User Manual
(;×ïX2)
1173.9740.02 ─ 03

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  • Page 1 ® R&S CMW-KM645 FM Stereo Radio Firmware Applications User Manual (;×ïX2) 1173.9740.02 ─ 03...
  • Page 2 This user manual describes the following R&S CMW options: ● ® R&S CMW-KM645 (FM Stereo Radio, TX measurement) © 2013 Rohde & Schwarz GmbH & Co. KG Mühldorfstr. 15, 81671 München, Germany Phone: +49 89 41 29 - 0 Fax: +49 89 41 29 12 164 E-mail: info@rohde-schwarz.com...

  • Page 3: Table Of Contents

    ® Contents R&S CMW-KM645 Contents 1 Preface....................5 How to Read Firmware Application Chapters............5 1.1.1 General Description......................5 1.1.2 Application Sheets......................5 1.1.3 GUI Reference........................6 1.1.4 Programming Examples....................6 1.1.5 Command Reference......................6 2 What's New in this Revision..............7 3 General Description................8 Test Setup........................8 Measuring an FM Signal....................9 AF Filter Settings......................9...
  • Page 4 ® Contents R&S CMW-KM645 Key Features........................28 Specifying General Measurement Settings..............28 Specifying Measurement Control Settings...............29 Specifying Limits......................29 Performing Single Shot RF Measurements..............29 Continuous and AF Measurements................30 6 Command Reference................32 Conventions and General Information..............32 6.1.1 MEAS<i>........................32 6.1.2 FETCh, READ and CALCulate Commands..............32 6.1.3...

  • Page 5: Preface

    ® Preface R&S CMW-KM645 How to Read Firmware Application Chapters 1 Preface The operation of the R&S CMW is described in several user manuals: ● The R&S CMW user manual describes the base software, common features of the firmware applications and basic principles for manual operation and remote control.

  • Page 6: Gui Reference

    ® Preface R&S CMW-KM645 How to Read Firmware Application Chapters 1.1.3 GUI Reference The GUI reference describes the manual operation of the firmware application via the Graphical User Interface (GUI). The description of a configuration dialog usually starts with a screenshot presenting the preset values of the parameters (sometimes preset values are modified to enable hidden parts of a dialog).

  • Page 7: What's New In This Revision

    ® What's New in this Revision R&S CMW-KM645 2 What's New in this Revision This revision describes version 3.2.10 and later of the "FM Stereo Radio Measurement" firmware application. Compared to version 3.0.10 it provides the following new features and changes: ●...

  • Page 8: General Description

    R&S CMW-KM645 Test Setup 3 General Description The "FM Stereo Radio Measurement" application (option R&S CMW-KM645) provides transmitter (TX) tests on FM-modulated RF signals (called "FM signals" in the following). The tests cover the following FM signal properties: ● RF carrier characteristics including the carrier power, frequency error, and the fre- quency deviation due to a composite modulating signal ("multiplex deviation")

  • Page 9: Measuring An Fm Signal

    ® General Description R&S CMW-KM645 Measuring an FM Signal Fig. 3-1: Connecting an RF transmitter to the instrument The measurement is performed in free run mode; no trigger signal is needed. 3.2 Measuring an FM Signal After connecting your FM signal source to the R&S CMW as shown in section ​...

  • Page 10: Limit Settings And Conformance Requirements

    ® General Description R&S CMW-KM645 Limit Settings and Conformance Requirements A 50 μs time constant is used for FM broadcasting in Europe, North American FM stations use a 75 μs time constant. ● An A-weighting filter defined in IEC 60651. The A-weighting filter deemphasizes the...

  • Page 11: Rf Carrier Requirements

    ® General Description R&S CMW-KM645 Measurement Results 3.4.1 RF Carrier Requirements The RF signal consists of a carrier frequency-modulated by the composite audio signal. According to standard IEC 62106, the modulated carrier is transmitted with a maximum frequency deviation of ±75 kHz ("Multiplex Deviation, ± Peak / 2").
  • Page 12 ® General Description R&S CMW-KM645 Measurement Results Fig. 3-3: FM Stereo Radio: RF Carrier Results The table contains the following results: ● Carrier Power: Absolute power of the RF signal in dBm. The carrier power is mea- sured in a 500 kHz IF bandwidth.

  • Page 13: Rf Modulation Results

    ® General Description R&S CMW-KM645 Measurement Results 3.5.2 RF Modulation Results The "RF Modulation Results" characterize the properties of the audio signal which mod- ulates the RF carrier (baseband signal). Fig. 3-5: FM Stereo Radio: RF Modulation Results The table contains the following results: ●...
  • Page 14 ® General Description R&S CMW-KM645 Measurement Results Fig. 3-6: Principle of an FM stereo coder A stereo decoder can separate the three signal contributions using appropriate filter stages, add the (L + R) / 2 and (L – R) / 2 signals for the left channel ((L + R) / 2 + (L –...

  • Page 15: Af Measurement Results

    ® General Description R&S CMW-KM645 Measurement Results The complete spectrum is shown below. Fig. 3-8: FM baseband spectrum 3.5.3 AF Measurement Results The "AF Results" characterize the properties of the demodulated audio signal. The results for the left (L) and right (R) audio channels are analogous; refer to the description of the FM baseband spectrum in section ​...
  • Page 16 ® General Description R&S CMW-KM645 Measurement Results ● SINAD: Signal to Noise and Distortion ratio; the inverse of the THD + N, converted to a dB value; see description below. ● SNR: Signal to Noise Ratio, see description below. The filter settings for the audio measurements are described in ​...

  • Page 17: Selecting And Modifying Views

    ® General Description R&S CMW-KM645 Measurement Results D = P + ... The R&S CMW measures up to 10 harmonics at frequencies up to 21 kHz. (Exam- ple: with a reference frequency of 3 kHz, the distortion measurement is based on the to 7 harmonics.)
  • Page 18 ® General Description R&S CMW-KM645 Measurement Results The statistical values in the tables are calculated as follows: ● Current: Value of the result obtained in the last measurement interval. ● Average: Average of all "Current" values referenced to the last statistics cycle.

  • Page 19: Gui Reference

    ® GUI Reference R&S CMW-KM645 Measurement Control 4 GUI Reference The following sections provide detailed reference information on the Graphical User Interface (GUI) and the parameters of the "FM Stereo Radio Measurements" firmware application. ● Measurement Control....................19 ● Parameters and Settings..................19...

  • Page 20: Signal Routing And Analyzer Settings

    ® GUI Reference R&S CMW-KM645 Parameters and Settings 4.2.1 Signal Routing and Analyzer Settings The measurement is configured using the parameters in the "FM Stereo Radio Configu- ration" dialog. The following parameters configure the RF input path. See also: "Connection Control (Measurements)" in the R&S CMW user manual, chapter "System Overview"...
  • Page 21 ® GUI Reference R&S CMW-KM645 Parameters and Settings Frequency Center frequency of the RF analyzer. Set this frequency to the RF carrier frequency to obtain a meaningful measurement result. Remote command: ​ C ONFigure:​ F MSTereo:​ M EAS<i>:​ R FSettings:​ F REQuency​...

  • Page 22: Measurement Control Settings

    ® GUI Reference R&S CMW-KM645 Parameters and Settings Frequency Offset Positive or negative frequency offset to be added to the specified center frequency of the RF analyzer. Remote command: ​ C ONFigure:​ F MSTereo:​ M EAS<i>:​ R FSettings:​ F OFFset​...
  • Page 23 ® GUI Reference R&S CMW-KM645 Parameters and Settings Stop Condition Specifies the conditions for an early termination of the measurement: ● None: The measurement is performed according to its "Repetition" mode and "Sta- tistic Count", irrespective of the limit check results.

  • Page 24: Limit Settings

    ® GUI Reference R&S CMW-KM645 Parameters and Settings AF > THD (N) Freq. Left / Right Selects two reference frequencies for the AF Total Harmonic Distortion (THD), the Total Harmonic Distortion and Noise (THD + N), and the Signal to Noise Ratio (SNR) meas- urements;...

  • Page 25: Display Settings

    ® GUI Reference R&S CMW-KM645 Parameters and Settings Fig. 4-3: FM Stereo Radio limits Limits > RF Carrier Upper limits for the measurement results which characterize the RF carrier properties. An additional lower limit is specified for the RF carrier power: the carrier power must be in the range between the lower and the upper limit.

  • Page 26: Measurement Results

    ® GUI Reference R&S CMW-KM645 Measurement Results Fig. 4-4: FM Stereo Radio display settings You can also use the hotkeys associated with the "Display" softkey to select views. All display settings are self-explanatory. No remote control is provided. 4.3 Measurement Results The "FM Stereo Measurement"...
  • Page 27 ® GUI Reference R&S CMW-KM645 Measurement Results AF Results To retrieve the AF results, use the following commands. Remote command: ​ etc. F ETCh:​ F MSTereo:​ M EAS<i>:​ M EValuation:​ A FLeft:​ C URRent?​ ​ F ETCh:​ F MSTereo:​ M EAS<i>:​ M EValuation:​ A FRight:​ C URRent?​...

  • Page 28: Programming

    ® Programming R&S CMW-KM645 Key Features 5 Programming The following sections provide programming examples for the "FM Stereo Radio Mea- surement" application. The examples have been tested with the aid of a simple software tool. See also: "Remote Control" in the R&S CMW user manual ●...

  • Page 29: Specifying Measurement Control Settings

    ® Programming R&S CMW-KM645 Specifying Measurement Control Settings CONFigure:FMSTereo:MEAS:RFSettings:EATTenuation 2 CONFigure:FMSTereo:MEAS:RFSettings:FREQuency 98.2E+6 CONFigure:FMSTereo:MEAS:RFSettings:ENPower -5 CONFigure:FMSTereo:MEAS:RFSettings:UMARgin 0 CONFigure:FMSTereo:MEAS:RFSettings:FOFFset 1000 CONFigure:FMSTereo:MEAS:RFSettings:MLOFfset 6 5.3 Specifying Measurement Control Settings // ***************************************************************************** // Define stop condition (stop on limit failure) and error handling, // select a statistic count of 30 packets, enable all measurement results.

  • Page 30: Continuous And Af Measurements

    ® Programming R&S CMW-KM645 Continuous and AF Measurements FETCh:FMSTereo:MEAS:MEValuation:RFModulation:SDEViation? // ***************************************************************************** // Read limit check results. // ***************************************************************************** CALCulate:FMSTereo:MEAS:MEValuation:RFCarrier:AVERage? CALCulate:FMSTereo:MEAS:MEValuation:RFModulation:AVERage? // ***************************************************************************** // Query measurement state and measurement substates // (should be'RDY' and 'RDY,ADJ,INV). // ***************************************************************************** FETCh:FMSTereo:MEAS:MEValuation:STATe? FETCh:FMSTereo:MEAS:MEValuation:STATe:ALL? 5.6 Continuous and AF Measurements...
  • Page 31 ® Programming R&S CMW-KM645 Continuous and AF Measurements // Abort measurement and query substates again (should be "OFF, INV, INV"). // ***************************************************************************** FETCh:FMSTereo:MEAS:MEValuation:STATe:ALL? ABORt:FMSTereo:MEAS:MEValuation FETCh:FMSTereo:MEAS:MEValuation:STATe:ALL? User Manual 1173.9740.02 ─ 03...

  • Page 32: Command Reference

    ® Command Reference R&S CMW-KM645 Conventions and General Information 6 Command Reference The following sections provide detailed reference information on the remote control com- mands of the "FM Stereo Radio Measurement" application. ● Conventions and General Information..............32 ● Signal Routing and Analyzer Settings..............35...

  • Page 33: Current And Statistical Results

    ® Command Reference R&S CMW-KM645 Conventions and General Information See also: "Retrieving Measurement Results" in the R&S CMW user manual, chapter "Remote Control" 6.1.3 Current and Statistical Results The R&S CMW repeats measurements according to the selected statistic count and rep- etition mode.
  • Page 34 ® Command Reference R&S CMW-KM645 Conventions and General Information The measurement could not be started because the configured RF input path was not active. This problem may occur e.g. when a measurement is started in combined signal path mode and the master application has not yet activated the input path. The LEDs above the RF connectors indicate whether the input and output paths are active.

  • Page 35: Signal Routing And Analyzer Settings

    ® Command Reference R&S CMW-KM645 Signal Routing and Analyzer Settings ● 51 (No Reply): The DAU has received no response, for example for a ping request. ● 52 (Connection Error): The DAU could not establish a connection to internal components. Please restart the instrument.
  • Page 36 ® Command Reference R&S CMW-KM645 Signal Routing and Analyzer Settings ............38 CONFigure:​ F MSTereo:​ M EAS<i>:​ R FSettings:​ U MARgin​ ............38 CONFigure:​ F MSTereo:​ M EAS<i>:​ R FSettings:​ M LOFfset​ ............38 CONFigure:​ F MSTereo:​ M EAS<i>:​ R FSettings:​ F OFFset​...
  • Page 37 ® Command Reference R&S CMW-KM645 Signal Routing and Analyzer Settings Manual operation: "Scenario" on page 20 ROUTe:FMSTereo:MEAS<i>:SCENario? Returns the active scenario. Return values: <Scenario> SALone SALone: Standalone (Non Signaling) Usage: Query only Firmware/Software: V2.0.10 Manual operation: "Scenario" on page 20 CONFigure:FMSTereo:MEAS<i>:RFSettings:EATTenuation <RFInputExtAtt>...
  • Page 38 ® Command Reference R&S CMW-KM645 Signal Routing and Analyzer Settings Parameters: <ExpNomPwr> The range of the expected nominal power can be calculated as follows: Range (Expected Nominal Power) = Range (Input Power) + Exter- nal Attenuation - User Margin Range: –55 dBm to +55 dBm for the input power at RF 1 COM...

  • Page 39: Measurement Control And States

    ® Command Reference R&S CMW-KM645 Measurement Control and States Parameters: <FreqOffset> Range: -100E+3 Hz to 100E+3 Hz *RST: 0 Hz Default unit: Hz See ​ Example: S pecifying General Measurement Settings Firmware/Software: V3.2.10 Manual operation: "Frequency Offset" on page 22 6.3 Measurement Control and States...
  • Page 40 ® Command Reference R&S CMW-KM645 Measurement Control and States See also: "Measurement Control" in the R&S CMW user manual, chapter "Remote Con- trol" Return values: <MeasState> OFF | RUN | RDY OFF: measurement switched off, no resources allocated, no results available (when entered after ABORt...) RUN: measurement running (after INITiate..., READ...),...

  • Page 41: Measurement Control Commands

    ® Command Reference R&S CMW-KM645 Measurement Control Commands <ResourceState> QUE | ACT | INV QUE: measurement without resources, no results available ("queued") ACT: resources allocated, acquisition of results in progress but not complete ("active") INV: not applicable because <main_state>: OFF or RDY ("inva- lid")
  • Page 42 ® Command Reference R&S CMW-KM645 Measurement Control Commands See ​ Example: C ontinuous and AF Measurements Firmware/Software: V1.0.15.20 Manual operation: "Repetition" on page 22 CONFigure:FMSTereo:MEAS<i>:SCONdition <StopCondition> Qualifies whether the measurement is stopped after a failed limit check or continued. SLFail means that the measurement is stopped and reaches the RDY state as soon as one of the results exceeds the limits.
  • Page 43 ® Command Reference R&S CMW-KM645 Measurement Control Commands Parameters: <StatisticCount> Number of measurement intervals for the "RF Carrier" measure- ment Range: 1 to 1000 *RST: See ​ Example: S pecifying Measurement Control Settings Firmware/Software: V1.0.15.20 Manual operation: "RF Carrier / RF Modulation / AF > Statistic Count"...
  • Page 44 ® Command Reference R&S CMW-KM645 Measurement Control Commands Manual operation: "RF Carrier / RF Modulation / AF > Statistic Count" on page 23 CONFigure:FMSTereo:MEAS<i>:MEValuation:AF:FILTer:DEEMphasis <Filter> Selects the deemphasis filter for the AF analyzer input path. Parameters: <Filter> OFF | US50 | US75 OFF: Bypass deemphasis filter stage (filter off).
  • Page 45 ® Command Reference R&S CMW-KM645 Measurement Control Commands CONFigure:FMSTereo:MEAS<i>:MEValuation:AF:FILTer:WEIGhting <Filter> Selects the weighting filter for the AF analyzer input path. Parameters: <Filter> OFF | AWEight OFF: Bypass weighting filter stage (filter off) AWEight: Select A-weighting filter *RST: See ​ Example: C ontinuous and AF Measurements Firmware/Software: V1.0.15.20...

  • Page 46: Limits

    ® Command Reference R&S CMW-KM645 Limits Manual operation: "AF > Bandpass Variable" on page 24 CONFigure:FMSTereo:MEAS<i>:MEValuation:RESult:RFSCalars <Enable> CONFigure:FMSTereo:MEAS<i>:MEValuation:RESult:AFSCalars <Enable> Enables or disables the evaluation of results and shows or hides the views in the "FM Stereo Radio" measurement. The last mnemonic denotes the view type: statistical RF ("RF Carrier"...
  • Page 47 ® Command Reference R&S CMW-KM645 Limits ..........47 CONFigure:​ F MSTereo:​ M EAS<i>:​ M EValuation:​ L IMit:​ R FCarrier​ ........48 CONFigure:​ F MSTereo:​ M EAS<i>:​ M EValuation:​ L IMit:​ R FModulation​ ..........49 CONFigure:​ F MSTereo:​ M EAS<i>:​ M EValuation:​ L IMit:​ A FLeft​...
  • Page 48 ® Command Reference R&S CMW-KM645 Limits See ​ Example: S pecifying Limits Firmware/Software: V1.0.15.20 Manual operation: "Limits > RF Carrier" on page 25 CONFigure:FMSTereo:MEAS<i>:MEValuation:LIMit:RFModulation <PilotDevUpper>, <RDSDevUpper>, <AudioDevUpper>, <PilotFrqErrUpper>, <PilotDevEnab>, <RDSDevEnab>, <AudioDevEnable>, <PilotFrqErrEnab> Defines upper limits for the measurement results which characterize the FM modulation of the measured RF signal.
  • Page 49 ® Command Reference R&S CMW-KM645 Limits Firmware/Software: V1.0.15.20 (RDS deviation added in V2.1.10) Manual operation: "Limits > RF Modulation" on page 25 CONFigure:FMSTereo:MEAS<i>:MEValuation:LIMit:AFLeft <WeightedRmsUpp>, <BandRmsUpp>, <THDpercUpper>, <THDNUpper>, <SNR>, <WeightedRmsEnb>, <BandRmsEnable>, <THDpercEnable>, <THDNEnab>, <SNREnable> CONFigure:FMSTereo:MEAS<i>:MEValuation:LIMit:AFRight <WeightedRmsUpp>, <BandRmsUpp>, <THDpercUpper>, <THDNUpper>, <SNR>, <WeightedRmsEnb>, <BandRmsEnable>, <THDpercEnable>, <THDNEnab>, <SNREnable>...

  • Page 50: Measurement Results

    ® Command Reference R&S CMW-KM645 Measurement Results <THDpercEnable> OFF | ON Disable/enable limit check for Total Harmonic Distortion *RST: <THDNEnab> OFF | ON Disable/enable limit check for Total Harmonic Distortion and Noise *RST: <SNREnable> OFF | ON Disable/enable limit check for Signal to Noise ratio *RST: See ​...
  • Page 51 ® Command Reference R&S CMW-KM645 Measurement Results <2_OutOfTol> Out of tolerance result, i.e. percentage of measurement intervals in the statistics cycle (​ C ONFigure:​ F MSTereo:​ M EAS<i>:​ on page 42) exceeding the MEValuation:​ S COunt:​ R FCarrier​ specified limits, see ​...
  • Page 52 ® Command Reference R&S CMW-KM645 Measurement Results <OutOfTol> Out of tolerance result, i.e. percentage of measurement intervals in the statistics cycle (​ C ONFigure:​ F MSTereo:​ M EAS<i>:​ on page 42) exceeding the MEValuation:​ S COunt:​ R FCarrier​ specified limits, see ​...

  • Page 53: Rf Modulation Results

    ® Command Reference R&S CMW-KM645 Measurement Results Standard deviation of the multiplex deviation, –Peak <7_MultDevNeg> Range: 0 Hz to +96 kHz Default unit: Hz <8_MultDevRMS> Standard deviation of the multiplex deviation, RMS Range: 0 Hz to +48 kHz Default unit: Hz See ​...
  • Page 54 ® Command Reference R&S CMW-KM645 Measurement Results <5_AudioRightDev> Audio right deviation, ±Peak / 2 Range: 0 Hz to +96 kHz Default unit: Hz <6_PilotFreqErr> Pilot frequency error Range: -1500 Hz to +1500 Hz Default unit: Hz <7_RDSFreqDev> RDS deviation Range:...

  • Page 55: Af Modulation Results

    ® Command Reference R&S CMW-KM645 Measurement Results <6_PilotFreqErr> Standard deviation of the pilot frequency error Range: 0 Hz to +1500 Hz Default unit: Hz <7_RDS_Dev> Standard deviation of the RDS deviation Range: 0 Hz to +48 kHz Default unit: Hz See ​...

  • Page 56: Calculate:fmstereo:meas:Mevaluation:afleft:average

    ® Command Reference R&S CMW-KM645 Measurement Results CALCulate:FMSTereo:MEAS<i>:MEValuation:AFLeft:AVERage? CALCulate:FMSTereo:MEAS<i>:MEValuation:AFLeft:MAXimum? Returns the "AF Results" for the left audio channel. The MAXimum results correspond to the "Max/Ext" results of the GUI. The values described below are returned by FETCh and READ commands. CALCulate commands return limit check results instead, one value for each result listed below.

  • Page 57: Fetch:fmstereo:meas:Mevaluation:afleft:sdeviation

    ® Command Reference R&S CMW-KM645 Measurement Results <10_CarrierPower> Carrier power Range: -130.0 dBm to 55.0 dBm Default unit: dBm <11_AudioLeftDev> Audio left deviation Range: 0 Hz to +96 kHz Default unit: Hz See ​ Example: C ontinuous and AF Measurements...

  • Page 58: Fetch:fmstereo:meas:Mevaluation:afright:current

    ® Command Reference R&S CMW-KM645 Measurement Results <7_THDN> Standard deviation of the total harmonic distortion and noise in percent Range: 0 % to 50 % Default unit: % <8_SINAD> Standard deviation of the signal to noise and distortion ratio Range:...
  • Page 59 ® Command Reference R&S CMW-KM645 Measurement Results <2_OutOfTol> Out of tolerance result, i.e. percentage of measurement intervals in the statistics cycle (​ C ONFigure:​ F MSTereo:​ M EAS<i>:​ on page 43) exceeding the specified MEValuation:​ S COunt:​ A F​ limits, see ​...

  • Page 60: Fetch:fmstereo:meas:Mevaluation:afright:sdeviation

    ® Command Reference R&S CMW-KM645 Measurement Results FETCh:FMSTereo:MEAS<i>:MEValuation:AFRight:SDEViation? READ:FMSTereo:MEAS<i>:MEValuation:AFRight:SDEViation? CALCulate:FMSTereo:MEAS<i>:MEValuation:AFRight:SDEViation? Returns the standard deviation of the "AF Results" for the right audio channel. The values described below are returned by FETCh and READ commands. CALCulate commands return limit check results instead, one value for each result listed below.
  • Page 61 ® Command Reference R&S CMW-KM645 Measurement Results <10_CarrierPower> Standard deviation of the carrier power Range: 0 dB to +92.5 dB Default unit: dB <11_AudioRightDev> Standard deviation of the audio right deviation Range: 0 Hz to +48 kHz Default unit: Hz See ​...

  • Page 62: List Of Commands

    ® List of Commands R&S CMW-KM645 List of Commands ABORt:​ F MSTereo:​ M EAS<i>:​ M EValuation​ ......................39 CALCulate:​ F MSTereo:​ M EAS<i>:​ M EValuation:​ A FLeft:​ A VERage?​ ..............56 CALCulate:​ F MSTereo:​ M EAS<i>:​ M EValuation:​ A FLeft:​ C URRent?​ ..............55 CALCulate:​...
  • Page 63 ® List of Commands R&S CMW-KM645 FETCh:​ F MSTereo:​ M EAS<i>:​ M EValuation:​ A FLeft:​ M AXimum?​ ...............55 FETCh:​ F MSTereo:​ M EAS<i>:​ M EValuation:​ A FLeft:​ S DEViation?​ ..............57 FETCh:​ F MSTereo:​ M EAS<i>:​ M EValuation:​ A FRight:​ A VERage?​ ..............58 FETCh:​...

  • Page 64: Index

    ® Index R&S CMW-KM645 Index AF Filter Repetition FM Stereo Radio measurement ........ 23 FM Stereo Radio measurement ........ 22 Assign Views results FM Stereo Radio measurement ........ 24 FM Stereo Radio measurement ........ 11 A-Weighting RF Routing FM Stereo Radio measurement ........9 FM Stereo Radio measurement ........

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