Keysight N9030A Measurement Manual

Also see for x series: Manual Installation note Measurement guide Measurement guide Measurement guide

Contents

Keysight N9030A Measurement Manual Manual pdf 19 page image

19Demodulating AM, FM, ΦM, FM Stereo/RDS SignalsDemodulating an FM Stereo/RDS SignalMeasuring L=R FM Stereo/RDS SignalsThe parameters of the signal under test are as below.FM reference deviation: 75 kHzPilot deviation: 10%Pilot frequency: 19 kHzStereo frequency: 38 kHzLeft = Right tone: 1.0 kHzRDS deviation: 6%RDS frequency: 57 kHzStep Action Notes1 Select Analog Demodmode.Press Mode, Analog Demod.2 Preset the mode. Press Mode Preset.3 Select FM Stereo/RDSmeasurement.Press Meas, FM Stereo/RDS.4 Set the center frequency tothe center of the signal andset the AF stop frequency.Press FREQ Channel, CenterFreq, 98, MHz.Press FREQ Channel, AF StopFreq, 65, kHz.AF start frequency and AF stopfrequency settings determine thespan of the X axis in AF Spectrumwindow in MPX, Mono, Stereo, Left,and Right views.5 Set the FM referencedeviation.Press Meas Setup, Advanced,Ref Deviation, 75, kHz.6 View the measurementresult of the multiplexedsignal.Press View/Display, MPX. To display only the current trace inthe Demod Waveform window,press Meas Setup and toggleAvg/Hold Num to Off.