Triggers 11
Keysight InfiniiVision 3000T X-Series Oscilloscopes User's Guide 191
 
9 Press the <Hold softkey, and turn the Entry knob to select the hold time.
Video Trigger
Video triggering can be used to capture the complicated waveforms of most 
standard analog video signals. The trigger circuitry detects the vertical and 
horizontal interval of the waveform and produces triggers based on the video 
trigger settings you have selected.
The oscilloscope's MegaZoom IV technology gives you bright, easily viewed 
displays of any part of the video waveform. Analysis of video waveforms is 
simplified by the oscilloscope's ability to trigger on any selected line of the video 
signal.
1 Press the [Trigger] key.
It is important, when using a 10:1 passive probe, that the probe is correctly compensated. The 
oscilloscope is sensitive to this and will not trigger if the probe is not properly compensated, 
especially for progressive formats.