SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)
SA Mode Settings
— Average Type – Selects the way the demodulated signal values are
averaged. Choices are Power (#PAvg annotation is displayed), Log (#LgAv
annotation is displayed), Voltage (#VAvg annotation is displayed). Auto is
the default and when selected the FieldFox chooses the type of averaging
that is used based on the current settings.
— Average Count
– Determines the amount of averaging used (1 to 10K;
Default = 10).
— Demod Filters
– Refer to “How to Set the Demod Filters” on page 173.
— Demod View Time Freq
– Toggles how the demodulated signals are
displayed (Time (waveform) or Frequency (spectrum)); Default = Time).
— Audio Capture Playback
– Refer to “Setting the Audio Capture Playback
Softkeys” on page 172.
Setting the Alternate Frequency (AF) Freq/Dist Softkeys
When AM DSB, AM SSB, FM, FM Stereo / RDS, or PM are selected and
Demod View = Freq, you can choose from the following:
—Press Freq/Dist
then choose:
— AF Start Freq
– Sets the AF start frequency for the AM or FM demodulated
signal.
— AF Stop Freq
– Sets the AF stop frequency for the AM or FM demodulated
signal.
— AF Full Span
– Sets the AF full span frequency for the AM or FM
demodulated signal.
Also, you can set the standard Center, Freq Span, and other frequency
softkeys.
Setting the Alternate Frequency (AF) RBW Softkey
When AM DSB, AM SSB, FM, FM Stereo / RDS, or PM are selected and
Demod View = Freq, you can choose from the following:
—Press BW 2
then choose:
— AF RBW
– Sets the audio frequency (AF) resolution BW for the AM or FM
demodulated signal (Manual or Auto; default = Auto).
Keysight N9938-90003 User's Guide
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