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Trigger
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
from the trigger event. However, in some cases it is desirable to eliminate this delay, so that trigger
events line up exactly with the zero time point in zero span. You can use the
Zero Span Delay Comp
On/Off
feature to enable or disable zero span delay compensation.
Remote Command: :TRIGger[:SEQuence]:EXTernal1:DELay <time>
:TRIGger[:SEQuence]:EXTernal1:DELay?
:TRIGger[:SEQuence]:EXTernal1:DELay:STATe OFF|ON|0|1
:TRIGger[:SEQuence]:EXTernal1:DELay:STATe?
Example: TRIG:EXT1:DEL:STAT ON
TRIG:EXT1: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 SCPI: :TRIGger[:SEQuence]:EXTernal:DELay
For backward compatibility, the parameter EXTernal is mapped to EXTernal1
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
Key Path:
Trigger, External 1
Remote Command: :TRIGger[:SEQuence]:EXTernal1:DELay:COMPensation
OFF|ON|0|1
:TRIGger[:SEQuence]:EXTernal1:DELay:COMPensation?
Example: TRIG:EXT1:DEL:COMP ON