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Functions and Measurements
Demodulate the AM/FM signal
Demodulate the AM/FM signal
The N9320B provide you the AM/FM demodulation function.
Demodulating an AM Signal
The demodulation functions listed in the menu under
> {Demod} allow you to demodulate and hear signal
information displayed on the analyzer.
Simply place a marker on a signal of interest, set the
analyzer in zero span, activate AM demodulation, turn the
speaker on, and then listen.
1 Press > Preset. (With Preset Type of Factory)
2 Connect an antenna to the analyzer input.
3 Select a frequency range on the analyzer, such as the range
for AM radio broadcasts. For example, the frequency range
for AM broadcasts in the United States is 550 kHz to 1650
kHz:
Press >{Start Freq}> 550 > {kHz} > {Stop Freq} > 1650>{kHz}.
4 Place a marker on the signal of interest:
Press > {Next Pk Right} or {Next Pk Left}
5 Set the frequency of interest to center frequency:
Press > {Next Pk Right} or {Next Pk Left} (as necessary).
6 Change the resolution bandwidth to 100 kHz:
Press > 100 > {kHz}.
7 Press > {Zero Span}.
8 Set the detector type and turn on AM demodulation:
Press > {Detector} > {Sample}.
Press > {Demod} > {AM ON}.
SPAN
Preset/
System
Frequency
Peak
Search
Peak
Search
BW/
Avg
SPAN
Det/
Display
SPAN