126
Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes User's Guide
12
Trigger Mode/Coupling
You can use HF Reject to remove high-frequency noise, such as AM or FM
broadcast stations or noise from fast system clocks, from the trigger path.
1
Press the
[Trigger]
key.
2
In the Trigger menu, press
Reject
; then, select
HF Reject
.
3
Press
Reject
again (or push the Entry knob) to enable or disable.
To set the trigger holdoff
Trigger holdoff sets the amount of time the oscilloscope waits after a trigger
before re-arming the trigger circuitry.
Use the holdoff to trigger on repetitive waveforms that have multiple edges (or
other events) between waveform repetitions. You can also use holdoff to trigger on
the first edge of a burst when you know the minimum time between bursts.
For example, to get a stable trigger on the repetitive pulse burst shown below, set
the holdoff time to be >200 ns but <600 ns.
To set the trigger holdoff:
1
Press the
[Trigger]
key.
Pass
Band
50 kHz
DC
0 dB
-3 dB
200 ns
Oscilloscope triggers here
Holdoff
600 ns
