User Manual

Falling edge
Rising edge
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Picture 2-38
Note: Ɣ Press the SINGLE button when you want the oscilloscope to
acquire a single waveform.
Ɣ. Trigger coupling affects only the signal passed to the trigger
system. It does not affect the bandwidth or coupling of the
signal displayed on the screen.
Ɣ Normal Polarity Sync triggers always occur on negative-going
horizontal sync pulses. If the video waveform has positive-going
horizontal s
y
nc
p
ulses, use the Inverted Polarit
y
selection.
2.8.6 Trigger Holdoff
You can use the Trigger Holdoff function to produce a stable display of complex
waveforms. Holdoff is time between when the oscilloscope detects one trigger and
when it is ready to detect another. The oscilloscope will not trigger during the holdoff
time. For a pulse train, you can adjust the holdoff time so the oscilloscope triggers
only on the first pulse in the train.
Holdoff time
Trigger position
Trigger leve
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Picture 2-39
If you want to change holdoff time, please follow next operations:
1. Press the “TRIG MENU” button to show the “TRIG Menu”.
2. Press the “Type” option button to select trigger type.
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