User Manual

5 To Trigger the Oscilloscope RIGOL
DS4000 User’s Guide
5-29
press User and use to input the desired rate within 1 kb/s and 10.0 Mb/s.
Sample Point:
Sample point is the point within the bit’s time. The oscilloscope samples the bit level
at this point. “Sample point” is represented by the percentage of “the time from the
start of the bit’s time to the sample point time” in the “bit’s time”.
Press SamplePoint and use to modify the parameter with a step of 1% and the
range is from 5% to 95%.
Trigger Mode:
Press Sweep to select the Trigger Mode (page 5-3) under this trigger type as auto,
normal or single. The corresponding status light of the current trigger mode turns on.
Trigger Setting:
Press Setting to set the trigger parameters (trigger coupling, trigger holdoff and
noise rejection) under this trigger type.
Trigger Level:
Use TRIGGER LEVEL to modify the level. For details, please refer to the
description of “Trigger Level” on page 5-9.
1Bit
60%
70%
80%