Trigger Setup
Trigger Holdoff
Adjust holdof
f to obtain stable triggering when
the instrument is triggering on undesired
trigger events.
Trigger holdo
ff can help stabilize triggering,
since the oscilloscope does not recognize
new triggers during the holdoff time. When
the instrume
nt recognizes a trigger event, it
disables the trigger system until acquisition
is complete. In addition, the trigger system
remains dis
abled during the holdoff period
that follows each acquisition.
Holdoffs
Trigger Coupling
Trigger co
upling determines what part of the
signal is passed to the trigger circuit. Edge
and Sequence triggering can use all available
coupling
types: DC, AC, Low Frequency
Rejection, High Frequency Rejection, and
Noise Rejection. All other trigger types use
DC coupl
ing only.
Horizontal Position
When Delay Mode is on, use horizontal
position to acquire waveform detail in a
region
that is separated from the trigger
location by a significant interval of time.
MSO4000B and DP O4000B Series Oscilloscopes User Manual 77
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