SCPI Command Reference 6
TRIGer Subsystem
Trigger subsystem is only valid when the analyzer is in zero span.
External Trigger Slope
:TRIGer[:SEQuence]:EXTernal:SLOPe
POSitiveNEGative
:TRIGer[:SEQuence]:EXTernal:SLOPe?
The external trigger signal must be a TTL signal at 0 V to 5 V. This function controls the trigger polarity (for positive or negative- going signals).
*RST state: | Positive |
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Trigger Source
:TRIGer[:SEQuence]:SOURce
IMMediateVIDeoEXTernal
:TRIGer[:SEQuence]:SOURce?
This command sets the source (or type) of triggering used to start a measurement.
•Immediate is a free- run triggering.
•Video triggers on the video signal level.
•External allows you to connect an external trigger source.
*RST state: | Immediate (free- run triggering) |
Key access: | [Span] > {Trigger} |
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N9340A User’s Guide | 139 |