Keysight N9912-90001 User’s Guide 8- 17
SA (Spectrum Analyzer) Mode
SA Mode Settings
How to select Tune & Listen
—Press Measure 1.
—Then Tune & Listen
.
— Then choose a demodulation type. Select a setting based on the type of
interfering signal you suspect is being broadcast.
— None
Turns Tune & Listen OFF
— AM
Amplitude Modulation
— FM Narrow
Frequency Modulation; Narrow bandwidth. Choose when
interfering transmission consist of voice or data.
— FM Wide
Frequency Modulation; Wide bandwidth. Choose for high
quality music transmissions of FM broadcast radio.
Tune Frequency
The Tune & Listen tuner is separate from the SA display. This allows you to
listen to one frequency while displaying a different range of frequencies.
Set the Tune Frequency using one of three methods:
1. Selecting Preset, Mode Preset, or Meas Preset sets Tune Frequency to 3.0
GHz.
2. Specify Tune Frequency:
—Press Meas Setup 4
.
—Then Tune Freq
.
—Enter a value using the numeric keypad, arrows, or the rotary
knob. Then select a multiplier key. Learn about multiplier
abbreviations “Multiplier Abbreviations” on page 2-14.
3. Using Mkr->Tune Freq:
— Create a normal marker at the frequency of interest. Learn how in
“How to create Markers” on page 16-2.
— Press Mkr->/Tools
— Then Mkr->TuneFreq to change the Tune Frequency to that of the
marker.
To improve sound quality, try increasing power by reducing the
Attenuation setting and, if available, turn ON the Preamplifier. Learn how
in “Attenuation Control” on page 8-10
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