User Manual

5 To Trigger the Oscilloscope RIGOL
DS4000 User’s Guide
5-1
5 To Trigger the Oscilloscope
During work, the oscilloscope samples waveform data continuously no metter
whether the trigger is stable, but only stable trigger can garrantee stable display. The
trigger circuit guarantees that each sweep or sample starts from the trigger condition
defined by users on the input signal, namely each sweep and sample are
synchronous and the waveforms acquired overlap to display stable waveform.
Trigger setting should be based on the features of the input signal, thus you need to
have some knowledge of the signal under test to quickly capture the desired
waveform. This oscilloscope provides abundant advanced trigger functions which can
help you to focus on the waveform details of interest.
The contents of this chapter:
 Trigger Source
 Trigger Mode
 Trigger Coupling
 Trigger Holdoff
 Noise Rejection
 Trigger Type
 Trigger Output Connector