HDO9000 High Definition Oscilloscopes Operator's Manual
Note:
Because there is only one trigger per acquisition, the trigger event will always belongs
to the new acquisition. The processing time shown here is for purposes of illustration only.
Regardless of where in the acquisition record the trigger event was found (first edge or last), the
display will show time pre- and post-trigger based on your Time/Div and Delay settings.
Hold Off by Events
Events refers to the number of times the trigger conditions have been met following the arming event.
For example, if the Holdoff is two edges counted from the start of the acquisition, the oscilloscope
readies, arms on the first edge, holds off for the next two, triggers on the fourth edge, then completes
the acquisition. Because there must always be a first arming edge, the Holdoff appears to be "Holdoff
plus one."
Positive Edge trigger with Holdoff by events counted from start of acquisition.
As with Holdoff by time, when a Holdoff by events is counted from the last trigger time, the
oscilloscope re-arms immediately following the trigger and begins the Holdoff count. If the count is
satisfied by the time the oscilloscope is again ready, the trigger occurs on the next event at the start
of the new acquisition.
Positive Edge trigger with Holdoff by events counted from last trigger time.
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