Demodulating An Am Signal - Keysight X-Series Measurement Manual

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

Demodulating an AM Signal

Demodulating an AM Signal
This section demonstrates how to demodulate and listen to an AM signal. You
can tune to an AM signal and view the results of the detector output displayed
in the quad-view window or in single-window format.
Alternatively, the demodulated signal is also available as an audio output (to
the speaker or headphone jack) and as video output (on the rear panel).
The signal under test is a 680 kHz signal with AM depth of 50% and AM rate of
1 kHz. Note that if you are using a broadcast AM signal in the United States, for
example, the AM channels are broadcasting between 550 kHz and 1650 kHz.
Step
1. Select Analog Demod mode.
2. Preset the mode.
3. Set the center frequency of
the AM signal.
4. Adjust the sweep time and
view the measurement
results as in the figure
below.
Keysight N9063C Analog Demod Measurement Guide
Action
Mode/Meas Analog
— Press ,
Demod OK
, .
Mode Preset
— Press .
Center Freq
— Press and enter
680 kHz
, .
Sweep
— Press .
Demod Wfm Sweep
— Press
Time 2 ms
and enter
Notes
The default settings for Analog Demod
Mode are the AM measurement and
Quad View
This is the default setting.
.
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