The "Configure NRP-Z Analysis" dialog is divided into several sections. The power sensor area additionally provides specific parameters for the power sensor. This part of the dialog can differ from the following description depending on the sensor used. Refer to the manual of the power sensor in this case.
![]() | The "Pulse Data..." button is displayed only for measurement mode time and if an R&S NRP-Z81 power sensor is connected. |
Selects the power sensor to be set if more than one sensor is connected to the instrument.
Remote command:n.a.
In remote control, the sensor is selected via the numeric suffix in the sense key word of the command, for example SENSe2:POWer:SWEep:….
Activates the auto zero function.
Zeroing calibrates the external power sensor by adjusting its reading at zero signal power. For this purpose, the RF power source must be switched off or disconnected from the sensor. If a Rohde & Schwarz power sensor receives an input power during the zeroing process, it aborts zeroing and generates an error message. Zeroing takes a few seconds, depending on the sensor model. Refer to the documentation of your power sensor for more information.
Tips for zeroing
- During warm up after switching on or connecting the instrument
- After a substantial change of the ambient temperature
- After fastening the power sensor module to an RF connector at high temperature
- After several hours of operation
- When low-power signals are to be measured, e.g. less than 10 dB above the lower measurement limit.
- Switch off the RF power source for zeroing, but do not disconnect it from the power sensor. This proceeding keeps the thermal equilibrium, and the zeroing process also compensates the noise that superimposes the measured signal (e.g. from a broadband amplifier).
Opens the dialog for configuring the settings for pulse data analysis, see "Configure Pulse Data". This mode assumes that you are working in the time domain analysis (Measurement Mode - Power Analysis "Time") and the sensor supports automatic pulse analysis.
Opens the dialog for configuring the trigger settings, see "Configure Trigger". This mode assumes that you are working in the time domain analysis (Measurement Mode - Power Analysis "Time").
Activates the use of the s-parameters correction data of the connected power sensor. For sensors with attenuator this checkbox is automatically checked.
Refer also to the manual of the connected R&S NRP power sensor for a description on how to use the s-parameters table.
Remote command:Activates a level offset at the sensor input. Set the appropriate value in the entry field on the right, see "Level Offset - Power Analysis".
Remote command:Sets the level offset at the sensor input. To consider the value, activate the offset with "Level Offset State- Power Analysis".
Remote command:This setting is offered for measurements with DUTs that change the measurement frequency (like modulators), thus changing the input frequency of the sensor.
- Power versus frequency measurement
Activates the use of a different frequency range other than the set signal generator frequency range for the measurement. The separate minimum and maximum frequency values are set below.
The x-scale of the diagram can be adjusted to the separate frequency range with functions "Use as X Scale" and "Map to X Scale". - Power versus power measurement / Power versus time measurement
Activates the use of a different frequency other than the set signal generator frequency for the measurement. The separate frequency value is set in the entry window below.
Power versus frequency measurement only with active "Use Separate Frequency".
Sets the minimum frequency of the measurement.
Remote command:Power versus frequency measurement only with active "Use Separate Frequency" only.
Sets the maximum frequency of the measurement.
Remote command:Measurement Mode Frequency only.
Activates the use of the separate frequency min and max values for the scaling of the x-axis. Thus, the trace for this sensor is visible in the diagram , especially for frequency ranges that differ substantially from the generator settings.
If more than one sensor is active, which use separate frequencies, the option is only available for one sensor. To indicate the traces of the other sensors, use function "Map to X Scale".
Remote command:n.a.
Mode Frequency and active "Use Separate Frequency" only.
Maps the trace of a sensor that uses separate frequency to the current scaling of the diagram. Usually the scale is determined by the set frequency range of the generator. If more than one sensor is active, which use separate frequencies, the scale can also be determined by the separate frequency range of one of the other sensors.
Remote command:n.a.
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