Tektronix MDO4054-3, Руководство пользователя, Страница: 100 / 222

Trigger Setup
Trigger Holdoff
Adjust holdoff to obtain stable triggering when
the instrument is triggering on undesired
trigger events.
Trigger holdoff can help stabilize triggering,
since the oscilloscope does not recognize
new triggers during the holdoff time. When
the instrument recognizes a trigger event, it
disables the trigger system until acquisition
is complete. In addition, the trigger system
remains disabled during the holdoff period
that follows each acquisition.
Holdoffs
Trigger Coupling
Trigger coupling 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 coupling 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 signi
fi cant interval of time.
MDO4000 Series Oscilloscopes User Manual 81