User Guide

Chapter 5 To Trigger the Oscilloscope RIGOL
MSO1000Z/DS1000Z User’s Guide 5-13
Video Trigger
The waveform of video signal includes image signal and timing signal and different
signals adopt different standards and formats. MSO1000Z/DS1000Z provides basic
measurement function for video signals. The oscilloscope triggers on the standard
video signal field or line of NTSC (National Television Standards Committee), PAL
(Phase Alternating Line) or SECAM (Sequential Couleur A Memoire).
Trigger Type:
Press Type, rotate to select “Video” and press down . At this point, the
trigger setting information is displayed at the upper right corner of the screen.
For example, . The trigger type is video trigger; the trigger
source is CH1; the trigger level is 0.00 V.
Source Selection:
Press Source to switch the signal source and select CH1-CH4. For the details, please
refer to the introduction in “
Trigger Source”.
Note: Select channel with signal input as trigger source to obtain stable trigger.
Video Polarity:
Press Polarity to select the desired video polarity. The polarities available are
positive polarity (
) and negative polarity ( ).
Sync:
Press Sync to select the desired sync type.
 All Line: trigger on all the horizontal sync pulses.
 Line: for NTSC and PAL/SECAM video standards, trigger on the specified line in
the odd or even field.
Note: When this sync trigger mode is selected, you can modify the line number
using in Line 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) or 1 to 625 (576P).
 Odd: trigger on the rising edge of the first sync signal in the odd field.
 Even: trigger on the rising edge of the first sync signal 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
the odd field follows behind.
 PAL/SECAM: the frame frequency is 25 frames per second. The TV sweep line is
625.
 480P: the frame frequency is 60 frames per second; the TV sweep line is 525;
line-by-line sweep; the line frequency is 31.5 kHz.
 576P: the frame frequency is 60 frames per second; the TV sweep line is 625;