Remote Control - Commands R&S NRP-Z91
1168.8579.12 6.20 E-3
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. The power sensor R&S NRP-Z91 needs up to
20 ms to fully settle after a sharp change of the input power. 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 auto-delay function takes delays within the sensor into account, so long as the level change is not
greater than 10 dB. In the case of greater level changes, particularly abrupt jumps from high to low
powers immediately before the trigger point, the TRIGger:DELay function must be used to provide a
longer delay so that the specified accuracy can be attained. 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: ON
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]
TRIGger:HYSTeresis[?] 0.0 to 10.0
TRIGger:HYSTeresis sets the hysteresis of the internal trigger threshold (parameter TRIGger:LEVel).
Hysteresis is the magnitude (in dB) by which the trigger signal level falls below the trigger threshold
(with positive trigger edge) to enable triggering again. The case is exactly the opposite with a negative
trigger edge. The trigger hysteresis setting is only relevant to the INTernal trigger source.
The query yields the trigger hysteresis in dB.
Default setting: 0.0 [dB]
TRIGger:IMMediate
TRIGger:IMMediate triggers a generic trigger event that causes the power sensor to exit immediately
the WAIT_FOR_TRIGGER state irrespective of the trigger source and the trigger delay and begin with
the measurement. The command is the only means of starting a measurement when the trigger source
is set to HOLD. Only one measurement cycle is performed, irrespective of the set averaging factor.
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