Keysight Technologies C Series - Page 175

Keysight N9915-90020 User’s Guide 175
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)FUTURE
SA Mode Settings
In the graphic above, Analog Demod ON and Demod Metrics is indicated
above in the x2 displays of carrier spectrum content. For this example, AM
Modulation Metrics are displayed in the lower half of the display. See also,
Figure 9-7 on page 182, Figure 9-8 on page 183, Figure 9-9 on page 183, and
Figure 9-10 on page 184.
How to select Analog Demod (Metrics)
Analog demodulation can demodulate AM DSB, AM SSB, FM, FM Stereo /
RDS, PM signals. Under analog demodulation metrics the following
information is reported for each signal type: Carrier power, modulation rate,
SINAD, THD, plus deviation, depth, or RMS depending on the signal. Metrics
also displays the demodulated signal and the audio frequency spectrum.
Learn more,
Chapter 27, “AM/FM Metrics (SA Only and Option 355).”
—Press Measure 1 > Analog Demod Tune & Listen > Analog Demodulation
— Demod Type – Then choose a demodulation metric type. Select a setting
based on the type of interfering signal you suspect is being broadcast.
This section contains the following:
“How to select Analog Demod (Metrics)” on page 175
“How to make Analog Demodulation (Metrics)
Settings” on page 176
“Setting the Alternate Frequency (AF) Freq/Dist
Softkeys” on page 178
“Setting the Alternate Frequency (AF) RBW Softkey”
on page 178
“Setting the Audio Capture Playback Softkeys” on
page 178
“How to Set the Demod Filters” on page 180
“Setting the Marker Counter Gate Softkey” on
page 181
IMPORTANT! The FieldFox contains only one speaker that supports mono
audio output (i.e., if you play a stereo WAVE file, the Left and Right
channels are output in mono audio). If you want to output a stereo WAVE
file in stereo (to hear the left and right channels separately on the FieldFox)
you have to use the headphone jack and stereo headphones (i.e., most
earbuds, headphones, etcetera support stereo). Learn more, see also
Chapter 31, “System Settings.” and “Audio (Volume) Control” on page 769.