Example Of Less Amplitude Pulse Trigger - UNI-T UTD2000M Operating Manual

UTD2000M User Manual
Video Row Trigger
To do video row trigger, please follow the following steps to operate:
1． Press MENU key located in the trigger control area to display trigger menu;
2． Press F1 key and then use "MULTIPURPOSE" knob to set trigger type as "Video";
3． Press F2 key and then use "MULTIPURPOSE" knob to set trigger source as "CH1";
4． Press F5 to enter into Video Setting. Press F1 to set video format to PAL;
5． Press F2 and then use "MULTIPURPOSE" knob to select row synchronization;
6． Use "MULTIPURPOSE" knob to set the "row" to be any row;
7． Time base knob located in the horizontal control area should be used to adjust horizontal time base so as to
get a clear waveform display.
3.7 Example of Less Amplitude Pulse Trigger
Less amplitude pulse in digital signal normally represents metastable condition and may put the digital system into
an unknown state. To capture the waveform of such unknown state, we can choose less amplitude pulse trigger.
Fig. 3‐10 Video Field Trigger
Fig. 3‐11 Video Row Trigger
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