User Manual

5 To Trigger the Oscilloscope RIGOL
MSO4000D/S4000 User’s Guide
5-21
the odd field follows behind.
 PAL: the frame frequency is 25 frames per second. The TV sweep line is 625
with the odd field goes first and the even field follows behind.
 SECAM: the frame frequency is 25 frames per second. The sweep line is 625
with interlacing sweep.
 HDTV: HDTV consists of 480P, 576P, 720P, 1080P and 1080I display formats.
The specified video standards are as follows:
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. Line-by-line sweep.
720P
the frame frequency is 60 frames per second. The TV sweep
line is 750. Line-by-line sweep. The line frequency is 45 KHz.
1080P
the frame frequency is 60 frames per second. The TV sweep
line is 1125. Line-by-line sweep.
1080I
the frame frequency is 25 to 30 frames per second. The TV
sweep line is 1125. Interlacing sweep. The line frequency is
33.75 KHz.
Trigger Mode:
Press Sweep to select the Trigger Mode (page 5-3) under this trigger type as auto,
normal or single. The corresponding status light of the current trigger mode turns on.
Trigger Setting:
Press Setting to set the trigger parameters (trigger holdoff and noise rejection)
under this trigger type.
Trigger Level:
Use TRIGGER LEVEL to modify the level. For details, please refer to the
description of “
Trigger Level” on page 5-9.