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Triggering on Waveforms
Triggering on Pulses
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Triggering on Pulses
Use pulse width triggering to isolate and display specific
pulses that you can qualify by time, such as glitches,
missing pulses, bursts or signal dropouts.
Detecting Narrow Pulses
To set the test tool to trigger on narrow positive pulses
shorter than 5 ms, do the following:
1 Apply a video signal to the red input A.
2 Display the TRIGGER key labels.
3 Open the Trigger Options menu.
4 Select Pulse Width on A... to
open the Trigger on Pulse Width
menu.
5 Select the positive pulse icon,
then jump to Condition.
6 Select <t, then jump to Update.
7 Select On Trigger.
The test tool is now prepared to trigger on narrow pulses
only. Observe that the trigger key labels at the bottom of
the screen have been adapted to set the pulse conditions: