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Command Descriptions
2–340
TDS Family Oscilloscope Programmer Manual
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TRIGger :
:
POSITIVe
NEGAtive
VIDeo
MAIn
SYNc
:
POSITIVe specifies a positive going voltage.
NEGAtive specifies a negative going voltage.
TRIGGER:MAIN:VIDEO:SYNC POSITIVE
selects a positive going voltage for the desired synchronization pulse.
TRIGger:MAIn:VIDeo:SYStem
TDS 400A Option 05 Only
Sets or queries the video trigger class. This is equivalent to selecting the class in
the Video Class side menu of the Video menu.
Trigger
TRIGger:MAIn:VIDeo:SYStem { NTSc | PAL | SECAM | CUSTom }
TRIGger:MAIn:VIDeo:SYStem?
TRIGger :
:
VIDeo
MAIn
SYStem
:
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PAL
?
CUSTom
SECAM
NTSc
NTSc selects a condition that adheres to the National Television System
Committee standards. Specifically, it assumes a line rate of 525 lines per frame
and a frame rate of 30 Hz.
PAL selects a condition that adheres to the Phase Alternate Line standard.
Specifically, it assumes a line rate of 625 lines per frame and a frame rate of
25 Hz.
SECAM selects a condition that adheres to the SECAM standard.
Arguments
Examples
Group
Syntax
Arguments