Display Settings 9
Keysight InfiniiVision HD3-Series Oscilloscopes User's Guide 125
3 Select the Persistence field, and select between:
• Off — Turns off persistence.
When persistence is off, you can select Capture Waveforms to perform a
single-shot infinite persistence. A single acquisition's data is displayed with
reduced intensity, and it remains on the display until you clear persistence or
clear the display.
Included in the persistence data are active analog channels and digital
channels.
•
∞ Persistence — (infinite persistence) Results of previous acquisitions are
never erased.
Use infinite persistence to measure noise and jitter, to see the worst-case
extremes of varying waveforms, to look for timing violations, or to capture
events that occur infrequently.
• Variable Persistence — Results of previous acquisitions are erased after a
certain amount of time.
Variable persistence gives you a view of acquired data that is similar to
analog oscilloscopes.
When variable persistence is selected, enter the amount of Time that
previous acquisitions are to be displayed.
The display will begin accumulating multiple acquisitions.
When Digital is selected, persistence of digital channel waveforms is also
displayed.
4 To erase the results of previous acquisitions from the display, select Clear
Persistence.
The oscilloscope will start to accumulate acquisitions again.
5 To return the oscilloscope to the normal display mode, turn off persistence;
then, select Clear Persistence.
Turning off persistence does not clear the display. The display is cleared if you
select Clear Display, press the [Clear Display] key, or if you press the [Auto Scale]
key (which also turns off persistence).
Persistence is not available for math or FFT functions.
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