Remote Control - Commands R&S NRP-Z11/21/31/41/61/211/221
1137.7470.12 6.28 E-7
TRIGger:DELay[?] x to 100.0
This command is used to set a trigger delay for all measurements in sync with the signal except in the
Burst Average mode. It provides a time offset to the physical trigger event equal to the entered value.
The trigger can thus be shifted to a point in time of the measurement signal that is significant for the
measurement, for example to the start of the first timeslot for the Timeslot Average mode. If external
triggering is used, delay differences between the external trigger signal and the measurement signal
can be compensated for with a trigger delay.
It is possible to set negative trigger delays, i.e. the trigger point can occur before the physical trigger
event. No matter which measurement mode is selected, the negative limit is –5 ms. If the trigger delay
is entered in the Trace mode, an additional condition must be met: The sum of the start of recording
and the trigger delay must not exceed the length of –5 ms (see notes on the
SENSe:TRACe:OFFSet:TIME command). If full use is made of this value, the order in which the trigger
delay and the start of recording are entered determines whether a trigger delay down to –5 ms can be
set. When a different measurement mode is selected, the full –5 ms become immediately available
again. When switching (back) to the Trace mode, the trigger delay that has been set is retained and, if
there is a conflict, the start of recording is adjusted automatically.
The time resolution of the trigger delay is approx. 7 Ss with internal triggering and approx. 1 Ss with
external triggering.
Any trigger delay that is set comes into effect irrespective of the defined trigger source, but this is only
useful with the Internal und External settings.
Lower limit x of the parameter
Timeslot Average mode: x = –0.005
Trace mode: x = – (<SENSe:TRACe:OFFSet:TIME> + 0.005)
Default setting: 0.0 [s]
TRIGger:DELay:AUTO[?] OFF | ON
TRIGger:DELay:AUTO ON ensures by means of an automatically determined delay that a
measurement is only started after the sensor has settled. This is relevant mainly for thermal power
sensors (negligible for the R&S NRP-Z11/21/31/41/61/211/221). If the automatic trigger delay was
activated with the TRIGger:DELay:AUTO ON command, it has the following effect:
After exiting the WAIT_FOR_TRIGGER state – initiated by the trigger event – the first analog-digital
conversion is not performed until the settling time of the sensor has elapsed once. If the measurement
cycle has to be repeated due to an averaging factor other than one, no further delay occurs.
The automatically determined delay is ignored if a longer period was set with TRIGger:DELay.
TRIGger:DELay:AUTO OFF deactivates the automatic trigger delay.
The query yields
• 1 for OFF,
• 2 for ON.
Default setting: OFF
TRIGger:HOLDoff[?] 0.0 to 10.0
TRIGger:HOLDoff suppresses trigger events within the set holdoff time (in s), starting from the time of
the last successful triggering.
The query yields the set holdoff time (in s).
Default setting: 0.0 [s]
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