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Interference Analyzer (SA Mode) – Option 236
Spectrogram and Waterfall Displays
— Press Meas Setup 4.
— Then
— Then choose from the following:
How to Restart the Spectrogram/Waterfall
Press Sweep 3 then
Averaging
Averaging can be enabled on the underlying measurement. Press Meas 4 then
Average
Mode Preset
Mode Preset resets ONLY the Spectrogram and Waterfall display settings. It
does not reset the measurement settings.
— Press Preset
— Then
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
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 554
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
— Sweep Time (Acquisition). Learn more
540
Spectrogram Settings
Red Limit
—
Using the
HIGHEST power level that you expect to measure. This power level,
and those measured higher than this level, appear Red.
Blue Limit
—
Using the
LOWEST power levels that you expect to measure. This power level,
and those measured lower than this level, appear Blue.
Restart
Type. Learn more in
Mode Preset
"Scale and Units" on page
BW)" on page 187
and
or
Waterfall Settings
arrows, rotary knob, or keypad, select the
arrows, rotary knob, or keypad, select the
"Average Type" on page
for how to save traces.
"Frequency Range" on page
"Resolution Bandwidth (Res
"Video Bandwidth (Video BW)" on page
in."Sweep Acquisition" on page 193
Keysight N9915-90020 User's Guide
204.
159.
"Record
151.
188.
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