Spectrum Analyzer Commands 4-12 :TRIGger Subsystem
S412E PM PN: 10580-00319 Rev. N 4-49
4-12 :TRIGger Subsystem
This subsystem contains commands related to the triggering of instrument functions for the
purposes of synchronization. Related commands appear in the ABORt and INITiate
subsystems.
:TRIGger[:SEQuence]:SOURce IMMediate|EXTernal|VIDeo
:TRIGger[:SEQuence]:SOURce?
Title: Trigger Source
Description: This command defines the trigger source. IMMediate triggering is the
equivalent of free-run triggering. EXTernal triggering is triggered when
a TTL signal is applied to the External Trigger input connector.
EXTernal triggering is always done on the rising edge of the signal. It is
available only in zero span mode.
Parameter: IMMediate|EXTernal|VIDeo
Parameter Type: <char>
Default Value: Immediate
Range: IMMediate|EXTernal|VIDeo
Related Command: :TRIGger[:SEQuence]:VIDeo:LEVel
:TRIGger[:SEQuence]:VIDeo:DELay
Front Panel Access: Shift-3 (Sweep), Triggering, Source
:TRIGger[:SEQuence]:VIDeo:LEVel <amplitude>
:TRIGger[:SEQuence]:VIDeo:LEVel?
Title: Video Trigger Level
Description: This command sets the video triggering level.
Parameter: <amplitude>
Default Value: -65.0 dBm
Default Unit: Current amplitude unit
Range: 30 dBm to -150 dBm
Related Command: :TRIGger[:SEQuence]:SOURce
Front Panel Access: Shift-3 (Sweep), Triggering, Level
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