Frequency Vs Time Display - Tektronix SPECMON3 Manual

General Signal Viewing
Freq & BW Tab
The Freq & BW (Bandwidth) tab allows you to specify the measurement frequency the bandwidth
parameters used for setting measurement bandwidth. This determines what Acq BW the measurement
will request.
Settings
Span
xxx

Frequency Vs Time Display

The Frequency vs. Time Display shows how the signal frequency varies with time.
Note that the trace(s) in the Frequency vs. Time display can be set to a maximum of 100,000 points
(however, the actual number of trace points can extend up to 1,000,000 points if Max trace points is set
to Never Decimate). If the Analysis Length includes more than the selected Max trace points value, the
trace is decimated (using the method specified with the Detection control) to be equal to or less than the
Max trace points setting (except when Max trace points is set to Never Decimate). This decimated (or
undecimated) trace is what is used for marker measurements and for results export. You can set the Max
trace points on the Settings > Prefs tab.
To display the Frequency vs. Time Display:
1. Select the Displays button or Setup > Displays.
2. In the Select Displays dialog, select General Signal Viewing in the Folders box.
3. In the Available displays box, double-click the Frequency vs. Time icon or select the icon and click
Add. The Frequency vs. Time icon will appear in the Selected displays box and will no longer
appear under Available displays.
4. Click OK to display the Freq vs. Time display.
SPECMON3 & SPECMON6 Printable Help
Description
The frequency span used for analysis in the Amplitude vs. Time display. If the spectrum
display is open, the span is automatically set to the analyzer bandwidth.
Freq & BW Tab
105