Fluke CombiScope PM3370B User Manual page 43

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The video trigger mode can be programmed to field1, field2, or lines using the
TRIGger:VIDeo:FIELd... commands. The video trigger line can be programmed
using the TRIGger:VIDeo:LINE command.
The video system can be selected using the TRIGger:VIDeo:FORMat:...
commands. The following standard video systems are supported:
- NTSC : 525 lines per frame
- PAL : 625 lines per frame
- SECAM : 625 lines per frame
- HDTV : 1050/1125/1250 lines per frame
1) Select video triggering and video standard.
Examples: TRIGger:TYPE VIDeo
TRIGger:VIDeo:FORMat:TYPE SECAM
TRIGger:VIDeo:FORMat:LPFRame 1125
2) Select video "lines" triggering and program the line to trigger on.
Examples: TRIGger:VIDeo:FIELd:SELect ALL
TRIGger:VIDeo:LINE 512
3) Select video "field1/2" triggering and program the line to trigger on.
Examples: TRIGger:VIDeo:FIELd:SELect NUMBer
TRIGger:VIDeo:FIELd:NUMBer 2
TRIGger:VIDeo:FORMat:TYPE PAL
TRIGger:VIDeo:LINE 123
TRIGger:VIDeo:LINE 325
TRIGger:VIDeo:FIELd:NUMBer 1
USING THE COMBISCOPE INSTRUMENTS
Selects TV video triggering.
Selects the SECAM standard with 625 lines per frame.
Selects the HDTV standard with 1125 lines per frame.
Selects the video lines trigger mode.
Selects video line number 512 .
Selects video field triggering.
Selects the video field2 trigger mode.
Selects the PAL standard with 625 lines per frame.
Selects video line number 123 . As a result the video mode is
automatically switched to field1 (field1 = lines 1 .. 312).
Selects video line number 325 . As a result the video mode is
automatically switched to field2 (field2 = lines 313 .. 625).
Selects the video field1 trigger mode. As a result the video
line number is automatically switched to 13 (= 325 - 625/2).