Measuring L=R Fm Stereo/Rds Signals - Keysight X-Series Measurement Manual

Demodulating AM, FM, ΦM, FM Stereo/RDS Signals
Demodulating an FM Stereo/RDS Signal

Measuring L=R FM Stereo/RDS Signals

The parameters of the signal under test are as below.
Step
1. Select Analog Demod mode.
2. Preset the mode.
3. Select FM Stereo/RDS
measurement.
4. Set the center frequency to
the center of the signal and
set the AF stop frequency.
5. Set the FM reference
deviation.
6. View the measurement
result of the multiplexed
signal.
Keysight N9063C Analog Demod Measurement Guide
FM reference deviation: 75 kHz
Pilot deviation: 10%
Pilot frequency: 19 kHz
Stereo frequency: 38 kHz
Left = Right tone: 1.0 kHz
RDS deviation: 6%
RDS frequency: 57 kHz
Action
Mode
— Press ,
Demod
.
Mode Preset
— Press
Mode/Meas
— Press
Stereo/RDS
FREQ
— Press ,
MHz
98, .
AF Stop Freq
— Press
Meas Setup
— Press
Ad vanced Ref Deviation
,
kHz
75, .
Display, View
— Press
Notes
Analog
.
FM
,
.
Center Freq
AF start frequency and AF stop
,
frequency settings determine the span
of the X axis in AF Spectrum window in
kHz
, 65, .
MPX, Mono, Stereo, Left, and Right
views.
,
,
MPX To display only the current trace in the
, .
Demod Waveform window, press
Setup
Off
.
Meas
Averaging
and toggle to
19