Specifications

Run/Stop/Single/Autostore/Erase Operation
During an acquisition, the oscilloscope examines the input voltage at
each input probe.
•
For analog channels on HP 54645A/D, the input voltage is
determined by the Volts/Div settings.
•
For digital channels in the HP 54645D, at each sample, the scope
compares the input voltage to the logic threshold. If the voltage is
above the threshold, the oscilloscope stores a “1” in sample
memory; otherwise, it stores a “0.”
To control the HP 54645A/D acquisition process, you can do the
following:
•
Perform continuous acquisitions by pressing the Run/Stop key, and
stop the acquisitions by pressing Run/Stop again.
•
Take exactly one acquisition, then stop, by pressing the Single key.
•
Store the results of several acquisitions by pressing Autostore.
•
Erase the results of all acquisitions by pressing Erase.
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