Trigger Controls - Agilent Technologies 3000 Series User's And Service Manual

Trigger Controls

The trigger determines when the oscilloscope starts to acquire data and display
a waveform. When a trigger is set up properly, it can convert unstable displays
or blank screens into meaningful waveforms. The oscilloscope acquires data
while waiting for the trigger condition to occur. After it detects a trigger, the
oscilloscope continues to acquire enough data so that it can draw the waveform
on the display.
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