Agilent Technologies 54657A Especificações Página 80

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To trigger on a specific field of the video signal
To examine the components of a video signal, trigger on either Field 1 or
Field 2. When a specific field is selected, the oscilloscope triggers on the
rising edge of the first serration pulse in the vertical sync interval in the
specified field (1 or 2).
1
Select the TV display, TV as the trigger mode, and the appropriate
TV standard as described in the section, “To autoscale on a video
signal.
2 Press Slope/Coupling in the TRIGGER section of the front
panel, then press the
Mode softkey until Field 1 or Field 2 appears.
Triggering on Field 1
Serration pulses
Equalizing pulses
Figure 3-3
Using Option 005 Enhanced TV/Video Trigger
To trigger on a specific field of the video signal
3–8
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