Making Spectrum Analyzer Measurements
3-20 AM/FM Audio (Requires Option 24)
This section describes the AM/FM audio demodulation capability (available with Option 24) and key
characteristics of analog amplitude modulation (AM) and frequency modulation (FM). The AM/FM analyzer
provides the following features:
• Ability to listen to audio and sweep trace data simultaneously
• Selectable demodulation frequency with ability to tie frequency to markers.
• Demodulation modes:
• AM
• Upper sideband or lower sideband
• Narrowband or wideband FM
• Record audio to WAV file
Refer to the previous sections in this chapter for details and menu overviews of general spectrum analysis
measurements including setting up frequency and bandwidth parameters, sweep settings, trigger types,
attenuator options, and preamp settings. Once the basic measurement is set up, select the AM/FM
measurement via MEASURE > MEASUREMENT > AM/FM Audio.
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Figure 3-73. AM/FM Audio Demodulation (1 of 2)
Spectrum Analyzer MG
2
PN: 10580-00447 Rev. A
3-20 AM/FM Audio (Requires Option 24)
(Figure
3-73)
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4
5
3-89
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