7 Trigger Functions
Trigger
Preset POSitive
State Saved Saved in instrument state
Backwards
Compatibility SCPI
:TRIGger[:SEQuence]:FRAMe:EXTernal2:SLOPe
Backwards Compatibility
Notes
The legacy :TRIGger[:SEQuence]:SLOPe command affects the slopes for the VID, LINE, EXT1, EXT2,
and RFB triggers.
Initial S/W Revision Prior to A.02.00
Trig Delay
Controls a time delay during which the analyzer will wait to begin a sweep after meeting the trigger
criteria. You can use negative delay to pre-trigger the instrument in time domain or FFT, but not in swept
spans.
Key Path
Trigger, External 2
Remote Command
:TRIGger[:SEQuence]:EXTernal2:DELay <time>
:TRIGger[:SEQuence]:EXTernal2:DELay?
:TRIGger[:SEQuence]:EXTernal2:DELay:STATe OFF|ON|0|1
:TRIGger[:SEQuence]:EXTernal2:DELay:STATe?
Example TRIG:EXT2:DEL:STAT ON
TRIG:EXT2:DEL 100 ms
Notes Video trigger delay may be set to negative values, in time domain, FFT and even swept. It makes
intuitive sense in time domain and works well in FFT mode where the bandwidth of the filter before
the video trigger is about 1.25 span. In swept spans, negative settings of Trig Delay are treated as a
zero setting within the internal hardware and the advisory message "Neg. Trig Delay unavailable in
Swept Mode, zero delay used." is generated when such a delay is set.
Preset Off, 1.000 us
State Saved Saved in instrument state
Min –150 ms
Max 500 ms
Default Unit s
Backwards Compatibility
Notes
The legacy :TRIGger[:SEQuence]:DELay command affects the delay for the VID, LINE, EXT1, EXT2,
and RFB triggers.
The legacy :TRIGger[:SEQuence]:OFFSet command is supported for the VIDeo, LINE, EXT1, and EXT2
triggers.
Initial S/W Revision Prior to A.02.00
Zero Span Delay Comp On/Off
In zero span, there is a natural delay in the signal path, which comes from the RBW filter. This is usually
desirable, as it allows you to trigger on events and also see those events, because the signal is delayed
374 EMI Receiver Mode Reference
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