Data Sheet

RIGOL 5 To Trigger the Oscilloscope
MSO4000/DS4000 User’s Guide
5-20
Video Trigger
Trigger on the standard video signal field or line of NTSC (National Television
Standards Committee), PAL (Phase Alternating Line), SECAM (sequential color with
memory) or HDTV (High Definition Television).
Trigger Type:
Press Type to select “Video”. At this point, the trigger setting information as shown
in the figure below is displayed at the upper right corner of the screen.
Source Selection:
Press Source to select CH1 to CH4 as the Trigger Source. The current trigger
source is displayed at the upper right corner of the screen.
Note: Select the channel with the signal input as the trigger source to obtain stable
trigger.
Video Polarity:
Press Polarity to select the desired video polarity. You can select (positive
polarity) or
(negative polarity).
Sync:
Press Sync to select the desired sync type.
 All Lines: trigger on all the horizontal sync pulses.
 Line Num: for NTSC and PAL/SECAM video standards, trigger on the specified
line in the odd or even field; for HDTV video standard, trigger on the specified
line. Note that when this sync trigger mode is selected, you can modify the line
number using in the Line Num menu with a step of 1. The range of the line
number is from 1 to 525 (NTSC), 1 to 625 (PAL/SECAM), 1 to 525 (480P), 1 to
625 (576P), 1 to 750 (720P), 1 to 1125 (1080P) or 1 to 1125 (1080I).
 Odd field: trigger on the rising edge of the first ramp waveform pulse in the odd
field.
 Even field: trigger on the rising edge of the first ramp waveform pulse in the
even field.
Video Standard:
Press Standard to select the desired video standard.
 NTSC: the field frequency is 60 fields per second and the frame frequency is 30
frames per second. The TV sweep line is 525 with the even field goes first and