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RIGOL Chapter 5 To Trigger the Oscilloscope
5-6 DS8000-R User Guide
For example, to stably trigger the repetitive pulse series as shown in the figure below,
the holdoff time should be set to a value that is greater than t1 and smaller than t2.
Figure 5-2 Schematic Diagram of Trigger Holdoff
In the "Trigger" menu, click Holdoff (for some trigger, Holdoff is a sub menu under
More, at this time, click More → Holdoff) and then set the holdoff time with the
pop-up numeric keypad or scroll with the mouse to adjust the holdoff time. The
adjustable range of holdoff time is from 8 ns to 10 s. By default, it is 8 ns.
Noise Rejection
Noise rejection can reject the high frequency noise in the signal and reduce the
possibility of miss-trigger of the oscilloscope.
In the "Trigger" menu, click Noise Reject continuously (for some trigger, Noise
Reject is a sub menu under More, at this time, click More → Noise Reject) to
enable or disable noise rejection.
Note: This function is only available when the trigger source is an analog channel.
Holdoff Time
Trigger Position
t1
t2
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