Agilent Technologies FieldFox N9912A User Manual page 96

How to Restart the Spectrogram
Press Sweep 3 then
Averaging
Averaging can be enabled on the underlying measurement. Press Trace
then
Common Settings for Waterfall and Spectrogram
Set Red and Blue Limits
The colors displayed on the Waterfall and Spectrogram represent the various
measured power levels:
 Red = Highest power levels
 Blue = Lowest power levels
NOTE: The full Red-to-Blue color spectrum is visible only with Indoor display colors.
Learn more on page 144.
Adjust the Red and Blue limits to the power levels that you expect to measure.
The Blue limit must always be less than the Red limit.
 Press Meas Setup 4.
 Then
 Then choose from the following:
Time Markers
Use Time Markers to determine the elapsed time between any two displayed
records.
NOTE: Spectrogram displays the most recent record at the top of the screen. Waterfall
displays the most recent record at the bottom.
To create Time Markers:
 Press Meas Setup 4
 Then
 Then
 Then enter a value from 0 (the most recent sweep record) to the maximum
96
Displays the data trace below the spectrogram. Total trace records:
Bottom
o
130.
Restart
[Average]. Learn more on page 78.
State
Spectrogram / Waterfall Settings
Using the ▲|▼ arrows , rotary knob, or keypad, select the
Red Limit
o
HIGHEST power level that you expect to measure. This power level, and
those measured higher than this level, appear Red.
Using the ▲|▼ arrows , rotary knob, or keypad, select the
Blue Limit
o
LOWEST power levels that you expect to measure. This power level, and
those measured lower than this level, appear Blue.
Time Markers
Time
value, using the numeric keypad, ▲|▼ arrows, or the rotary knob. A
indicates the Time Marker.
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N9912A FieldFox User's Guide