HP 54645A, Руководство пользователя и сервисное руководство

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All events displayed left of the trigger point
▼
happened before the trigger
occurred, and these events are called pre-trigger information. You will find
this feature very useful because you can now see the events that led up to the
trigger point. Everything to the right of the trigger point
▼
is called
post-trigger information. The amount of delay range (pre-trigger and
post-trigger information) available depends on the sweep speed selected.
To start and stop an acquisition
•
To begin an acquisition, press the
Run/Stop
key.
•
To begin a single acquisition, press the
Single
key.
The instrument begins acquiring data while searching for a trigger condition.
The RUN indicator is shown in the upper-right corner of the display. If a
trigger occurs, the acquired data is shown in the display.
•
To stop an acquisition in process, press the
Run/Stop
key.
The instrument stops acquiring data, and the STOP indicator is shown in the
upper-right corner of the display. If the instrument was triggered (even by
auto triggering) and the pre-trigger and post-trigger buffers are full, the
results are displayed on the screen. If the buffers are not full, the waveform
display area will show nothing.
Front-Panel Overview
To start and stop an acquisition
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