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36
V5.1‐March2010
TRIGGERINGCONTROL
There are three triggering modes: Edge triggering, Video triggering, and Alternating
triggering. Each trigger mode has its own function menu.
Edge triggering: The edge trigger triggers on the incoming signal edge. Use the
edge trigger for all signals except for video.
Video triggering: Perform video field trigger or line trigger on standard video signals.
Alternate trigger: Use this mode when the CH1 and CH2 signal frequency differs.
The following describes the Edge triggering, Video triggering and Alternating
triggering menus respectively.
EDGE TRIGGERING
Edge triggering is a mode by which triggering occurs at the threshold of the input signal’s
edge. With Edge triggering selected, the trigger occurs on the rising or falling edge of
the input signal (Figure 23).
Figure 23: Edge Trigger