118 FieldFox User’s Guide
o Blue Limit Using the ▲|▼ arrows , rotary knob, or keypad, select the
LOWEST power levels that you expect to measure. This power level, and
those measured lower than this level, appear Blue.
How to Restart the Spectrogram
Press Sweep 3 then Restart
Averaging
Averaging can be enabled on the underlying measurement. Press Meas 4 then
Average Type. Learn more on page 99.
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 more on page 80.
NOTE Although this document refers to past traces as ‘records’ these traces are not
saved. They are only drawn on the FieldFox screen.
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 on page 77.
Resolution BW and Video BW. Learn more on page 86
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