Keysight N9912A User Manual page 103

Spectrogram display- Overlay view- with time markers 23 seconds 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 Spectrogram
display:
 Frequency Range. Learn more on page 68.
 Resolution BW and Video BW. Learn more on page 78
 Sweep Time (Acquisition). Learn more on page 82.
 Resolution (Number of Points). Learn more on page 87.
How to select Spectrogram
 Press Meas 1
 Then
 Then
How to modify the Spectrogram
You can change how the spectrogram is displayed relative to the data trace. This
setting affects the total number of trace records that can be displayed.
 Press Meas Setup 4.
 Then
 Then
 Then choose from the following:
Interference Analyzer (SA Mode) - Option 236
Interference Analysis
Spectrogram
Spectrogram Settings
Spectrogram View
Displays the data trace over the spectrogram with NO graticules. Total
Overlay
o
trace records: 340.
Displays the spectrogram with NO data trace. Total trace records:
Full Screen
o
340.
Displays the data trace above the spectrogram. Total trace records: 130.
Top
o
Displays the data trace below the spectrogram. Total trace records:
Bottom
o
130.
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