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Chapter 5 To Trigger the Oscilloscope RIGOL
MSO2000A/DS2000A User’s Guide 5-25
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 scan line is 525 with the even field goes first and the
odd field follows behind.
PAL/SECAM:
--PAL: the frame frequency is 25 frames per second. The TV scan 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 interlaced scan.
480P: the frame frequency is 60 frames per second; the TV scan line is 525;
progressive scan; the line frequency is 31.5 kHz.
576P: the frame frequency is 60 frames per second; the TV scan line is 625;
progressive scan.
HDTV: The specified video standards are as follows.
720P: the frame frequency is 60 frames per second. The TV scan line is
750. Progressive scan. The line frequency is 45 KHz. The field frequencies
available are 60 Hz, 50 Hz, 30 Hz, 25 Hz and 24 Hz.
1080P: the frame frequency is 60 frames per second. The TV scan line is
1125. Progressive scan. Professional format. The f ield frequencies
available are 60 Hz, 50 Hz, 30 Hz, 25 Hz and 24 Hz.
1080I : the f ield frequency is 50 to 60 f ields per second and the frame
frequency is 25 to 30 frames per second. The TV scan line is 1125.
Interlaced scan. The line frequency is 33.75 KHz. The field frequencies
available are 30 Hz, 25 Hz and 24 Hz.
Trigger Mode:
Press Sweep and select “Auto”, “Normal” or “Single”. For the details, please refer to
“
Trigger Mode”. The corresponding status light of the current trigger mode turns
on.
Trigger Setting:
Press Setting to set the trigger parameters (noise rejection) under this trigger type.
Trigger Level:
Use TRI GGER
LEVEL to modify the level. For the details, please refer to the
introduction of “
Trigger Level”.
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