Agilent Technologies DP235 Guía de usuario Pagina 164

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Using the Oscilloscope
The Scope Trigger Menu
The Scope Trigger Menu
The Scope Trigger menu allows you to choose the method you want to
use to trigger the oscilloscope for a particular application.
Trigger marker
The trigger marker is the dotted vertical line at the center of the
waveform display. The point where the waveform from the trigger
source crosses the trigger marker is called the trigger point. The
trigger point always represents a delay time of zero seconds.
If you set Delay time to greater than 5 times the setting for s/Div, the
trigger marker will move off the screen.
Mode/Arm menu
The Mode/Arm field provides a pop-up menu with three types of
triggering, plus a fourth choice identical to the Arming Control field in
the Analyzer Trigger menu. The three types of triggering are Edge,
Pattern, and Immediate. For information on Arming Control, refer to
"Arming Control field" earlier in this chapter. Note that to time-
correlate the oscilloscope and the analyzer waveforms when the
oscilloscope is armed by a logic analyzer, the Mode must be set to
Immediate.
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