Triggering On Video Signals - Fluke 125 User Manual

Fluke 125
Users Manual

Triggering on Video Signals

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Apply an interlaced video signal to the red input A.
To trigger on a random video line, continue from point
of the previous example as follows:
Highlight VIDEO on A....
Open the VIDEO TRIGGER
submenu.
Highlight PAL.
Select PAL.
Highlight RANDOM.
Select RANDOM.
2-20
Highlight POSITIVE.
Accept the video trigger
selections .
Trigger level and slope are now fixed. (See Figure 2-17.)
Positive video is indicated as a "+" icon on bottom of the
screen.
Figure 2-17. Measuring Video Signals