Trig Delay - Keysight x-series User Reference Manual

7 Trigger Functions
Trigger
Preset
State Saved
Backwards
Compatibility SCPI
Backwards Compatibility
Notes
Initial S/W Revision

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
Remote Command
Example
Notes
Preset
State Saved
Min
Max
Default Unit
Backwards Compatibility
Notes
Initial S/W Revision
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
POSitive
Saved in instrument state
:TRIGger[:SEQuence]:FRAMe:EXTernal2:SLOPe
The legacy :TRIGger[:SEQuence]:SLOPe command affects the slopes for the VID, LINE, EXT1, EXT2,
and RFB triggers.
Prior to A.02.00
Trigger, External 2
:TRIGger[:SEQuence]:EXTernal2:DELay <time>
:TRIGger[:SEQuence]:EXTernal2:DELay?
:TRIGger[:SEQuence]:EXTernal2:DELay:STATe OFF|ON|0|1
:TRIGger[:SEQuence]:EXTernal2:DELay:STATe?
TRIG:EXT2:DEL:STAT ON
TRIG:EXT2:DEL 100 ms
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.
Off, 1.000 us
Saved in instrument state
–150 ms
500 ms
s
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.
Prior to A.02.00
EMI Receiver Mode Reference