Agilent Technologies N9913A User Manual page 94

 Then
Tip To improve sound quality, try increasing power by reducing the Attenuation
setting and, if available, turn ON the Preamplifier. Learn how on page 87.
Listen Time
While Tune & Listen is actively demodulating a signal, the SA does not sweep
and update the display. Listen Time sets the amount of time that the FieldFox
demodulates, then stops to perform a single sweep and update the display, then
again demodulates.
To select Listen Time:
 Press Meas Setup 4
 Then
 Enter a value using the numeric keypad, ▲|▼ arrows, or the rotary knob.
Volume Control
 To increase or decrease the Volume of the demodulated signal:
 Press Meas Setup 4
 Then
 Enter a value in percent between 0 and 100 (loudest) using the numeric
 Volume can also be changed and easily muted from the System menu. Learn
Demod ON and OFF
To quickly stop the audio demodulation and perform only the normal SA sweeps,
select the following:
 Press Meas Setup 4
 Then
Independent Source/Tracking Generator
This feature may require an option. For a comprehensive list, view the FieldFox
Configuration Guide at:
9836EN.pdf
A tracking generator, a popular option with Spectrum Analyzers, is a source
which always tracks the SA receiver.
Like a traditional tracking generator, the Independent Source feature can set the
internal FieldFox source to track the SA receiver frequency range. It can also set
the internal source to a CW frequency that is independent of the SA frequency.
Independent Source can be enabled ONLY when the FieldFox is in SA mode.
To view the internal source, you must connect a cable or device between the RF
Output connector and the RF Input connector.
How to make Independent Source Settings
 Press Measure 1
94
Mkr->Tune Freq
Listen Time
Then select a multiplier key. Learn about multiplier abbreviations on page 19.
Volume
keypad, ▲|▼ arrows, or the rotary knob.
more on page 200.
Demod ON OFF
http://cp.literature.agilent.com/litweb/pdf/5990-
to change the Tune Frequency to that of the marker.
FieldFox User's Guide