Specifications

RIGOL
Programming Guide for DS1000B Series
2-71
Query Format:
:TRIGger:ALTernation:PULSe:TIME?□[<source>]
Return Format:
The query returns the value of pulse width, and the unit is s.
Example:
:TRIGGER:ALTERNATION:PULSe:TIME□0.002, SOURceB
Set the pulse width as 2ms.
:TRIGGER:ALTERNATION:PULSeE:TIME?□SOURCeB Return 2.000e-03.
(10) :TRIGger:ALTernation:VIDEO:POLarity
Command Format:
:TRIGger:ALTernation:VIDEO:POLarity□{POSitive |
NEGative }[,<source>]
Function:
The command sets the video polarity as Positive or Negative. The
<source> may be SOURceA or SOURceB, and the source A and B are
ivarying with the current alternation channel.
Query Format:
:TRIGger:ALTernation:VIDEO:POLarity?□[<source>]
Return Format:
The query returns POSITIVE or NEGATIVE.
Example:
:TRIGger:ALTernation:VIDEO:POLarity□POSitive, SOURceB
Set the video polarity as positive.
:TRIGger:ALTernation:VIDEO:POLarity?□SOURceB Return POSITIVE.
(11) :TRIGger:ALTernation:VIDEO:STANdard
Command Format:
:TRIGger:ALTernation:VIDEO:STANdard□{NTSC |
PALSecam}[,<source>]