190 Keysight N9915-90020 User’s Guide
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)FUTURE
SA Mode Settings
Oversweep
In SA mode, the FieldFox uses Oversweep to quickly analyze input signals.
Oversweep is meant to verify that your setup is correct, but Oversweep is not
meant to be as accurate as FFT and Step sweeps. See also,
“How to set Sweep
Type” on page 189
.
How to set Oversweep
1. Press BW 2 > Advanced then
2. Press
Oversweep –To enable/disable the Oversweep. Over sweep enables
you to quickly evaluate your setup.
IF Output
The FieldFox IF (intermediate frequency) can be output for external signal
processing. The signal is available from the IF Out connector on the FieldFox
right-side panel. See the connector in “Right Side Panel” on page 42.
The IF Out signal, centered at approximately 33.75 MHz (Narrow) or 225 MHz
(with Wide path Option B04 or Option B10), is simply a down-converted
version of the RF Input signal that is present at the tuned frequency.
While outputting an IF signal, the FieldFox stops performing the InstAlign
process. Therefore, the amplitude of traces on the FieldFox screen is NOT
accurate and
Meas UNCAL appears on the screen to indicate this. Learn more
in
“Individual Alignments” on page 209. See also Figure 9-12 on page 191.
Learn more about the IF Output frequencies and bandwidths in the
Supplemental Online Help:
https://rfmw.em.keysight.com/wireless/helpfiles/FieldFoxOnlineSupplement
alHelp/Home.htm.
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