Tektronix TDS5000B Series - Trigger:a:video:source

TDS5000B Online Programmer Guide
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TRIGger:A:VIDeo:SOUrce
Description
This command sets or queries the source for the A video trigger. This
command is equivalent to selecting Video Setup from the Trig menu
and selecting a channel from the Source drop--down menu.
Group
Trigger
Syntax 1
TRIGger:A:VIDeo:SOUrce {CH<x>}
Syntax 2
TRIGger:A:VIDeo:SOUrce?
Arguments
H CH<x>
This argument specifies one of the input channels of the instrument as
the A video trigger. The value of x ranges from 1 through 4 for four--
channel instruments or 1 through 2 for two--channel instruments.
Example 1
TRIGger:A:VIDeo:SOUrce?
This query might return
:TRIGger:A:VIDeo:SOURCE CH2
indicating that the source for the A video trigger is set to Channel 2.
Example 2
TRIGger:A:VIDeo:SOUrce CH1
This command sets the source for A video trigger to Channel 1.