Keysight N9927-90001 User’s Guide 273
Interference Analyzer (SA Mode) – Option 236
Spectrogram and Waterfall Displays
Averaging
Averaging can be enabled on the underlying measurement. Press
Meas 4
then
Average Type
. Learn more in
Measurement Preset
Measurement Preset resets ONLY the Spectrogram and Waterfall display
settings. It does not reset the measurement settings.
— Press
Preset
— Then
Meas Preset
Waterfall Display
The live trace is always drawn on a Waterfall display. Older trace records scroll
up from the displayed trace and eventually off the screen. Because of this,
locate the live trace on the bottom of the screen using the scale and reference
settings. Learn how in
Figure 13-2
Waterfall display- moderate angle- with time markers 1 minute apart.
The following settings all contribute to the sweep time of an individual trace,
and therefore, the total elapsed time that can appear on the screen in Waterfall
display:
— Frequency Range. Learn more in
— Resolution BW and Video BW. Learn more in
and
“Video Bandwidth (Video BW)” on page 164
— Sweep Time (Acquisition). Learn more in.
“Sweep Acquisition” on page 166
Although this document refers to past traces as ‘records’ these traces are
not saved. They are only drawn on the FieldFox screen. See
Playback Example (SA Only)” on page 284
for how to save traces.
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