For example, :TRIGger:VIDeo:LINE 100 /*Set the line number to 100*/ :TRIGger: VIDeo: LINE? /*The query returns 100*/ :TRIGger:VIDeo:STANdard For example, :TRIGger:VIDeo:STANdard NTSC /*Select NTSC video standard*/ :TRIGger:VIDeo:STANdard? /*The query returns NTSC*/ :TRIGger:VIDeo:LEVel 75 / 136 1 至525（480P） 1 至625（576P） 1 至750（720P） 1 至1125（1080P/1080i）。 Return format The query returns an integer. Command format :TRIGger:VIDeo:STANdard :TRIGger:VIDeo:STANdard? Function description Set or query the video standard of the video trigger. Parameter Name Type Range Default Integer {PALSecam|NTSC|480P|576P|720P| 1080P|1080I} NTSC Description PALSecam: PAL:
The frame rate is 25 frames per second, the TV scan line is 625 lines, the odd field is first, and the even field is rear; SECAM: the frame rate is 25 frames per second, the TV scan line is 625 lines, and interlaced. NTSC: The field frequency is 60 fields per second and the frame rate is 30 frames per second. The TV scan line is 525 lines, with even fields in front and odd fields in back. 480P: Frame rate is 60 frames per second, TV scan line is 525 lines, progressive scan, line frequency is 31.5 kHz. 576P: The frame rate is 60 frames per second, and the TV scan line is 625 lines, progressive scanning. 720P:
The frame rate is 60 frames per second, and the TV scan line is 625 lines, progressive scanning. 1080P: The frame rate is 60 frames per second, and the TV scan line is 625 lines, progressive scanning. 1080i: Frame rate is 60 frames per second, TV scan line is 625 lines, progressive scan. Return format The query returns PALS, NTSC, 480P or 576P / 720P, 1080P, 1080i. Command format :TRIGger:VIDeo:LEVel :TRIGger:VIDeo:LEVel? Function description Set or query the trigger level when the video is triggered. The unit is the same as the current amplitude unit. Parameter Name Type Range Default