RIGOL DS1000B - Manual (Page 48)

RIGOL Command Systems
Programming Guide for DS1000B Series 2-36
VIDEO Trigger
1. :TRIGger:VIDEO:MODE
Command Format:
:TRIGger:VIDEO:MODE
:TRIGger:VIDEO:MODE?
Function:
The command sets the trigger sync mode as ODDfield, EVENfield, LINE or
ALLlines.
Returned Format:
The query returns ODD FIELD, EVEN FIELD, LINE or ALL LINES.
Example:
:TRIG:VIDEO:MODE EVEN
Set the trigger sync mode as even field.
:TRIG:VIDEO:MODE? Return EVEN FIELD.
2. :TRIGger:VIDEO:POLarity
Command Format:
:TRIGger:VIDEO:POLarity {POSitive|NEGative}
:TRIGger:VIDEO:POLarity?
Function:
The command sets the video polarity as POSitive (it is applicable for the video
signal that the black level is low) or NEGative (the black level is high).
Returned Format:
The query returns POSITIVE or NEGATIVE.
Example:
:TRIG:VIDEO:POL POS Set the video polarity as positive.
:TRIG:VIDEO:POL? Return POSITIVE.