Tektronix TDS5000B Series

TDS5000B Online Programmer Guide
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TRIGger:A:VIDeo:POLarity
Description
This command sets or queries the polarity of the A video trigger.
Group
Trigger
Syntax 1
TRIGger:A:VIDeo:POLarity {INVERTed|NORMAl}
Syntax 2
TRIGger:A:VIDeo:POLarity?
Argument
H INVERTed
This argument sets the instrument to trigger on a positive video sync
pulse.
H NORMAl
This argument sets the instrument to trigger on a negative video sync
pulse.
Example 1
TRIGger:A:VIDeo:POLarity?
This query might return
:TRIGger:A:VIDeo:POLARITY INVERTED
indicating that the instrument is set to trigger on a positive video sync
pulse.
Example 2
TRIGger:A:VIDeo:POLarity NORMAl
This command sets the instrument to trigger on a negative video pulse.