Video signal trigger
Video signal trigger is used for oscilloscope triggering on even fields, odd fields, all fields, all lines, line number/line #. When Normal Polarity is selected the trigger always occurs on negative-going sync pulses. If the video signal has positive-going sync pulses, use the inverted Polarity selection.
The animated picture below shows a video signal trigger oscillogram on odd field and even field:
The picture below demonstrates a video signal trigger oscillogram on line number/line #/
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