To Capture A Single Event - HP 54645A User's And Service Manual

Run/Stop/Single/Autostore/Erase Operation

To capture a single event

To capture a single event
To capture a single event, you need some previous knowledge of the signal to
set up the trigger level and slope. For example, if the event is derived from
TTL logic, a trigger level of 2 volts should work on a rising edge. These steps
show you how to use the oscilloscope to capture a single event.
Connect a signal to the oscilloscope.
1
For HP 54645A, set up the trigger.
2
Press . Select a trigger source.
a
Source
Press
b
Mode/Coupling
Turn the trigger Level knob to the trigger threshold where you think
c
the trigger should work.
For HP 54645D, set up the trigger.
3
Define an edge, pattern, or advanced trigger.
a
Press
b
Mode/Coupling
If you are using the analog channels to capture the event, turn the
c
trigger Analog Level knob to the trigger threshold where you think
the trigger should work.
4-34
. Set Trigger Mode to Normal.
. Set Trigger Mode to Normal.