Instrument Function > RF Block > RF Measurement > NRP-Z Power Viewer
NRP-Z Power Viewer

The R&S SMA features the power viewer function for measuring or monitoring either the RF output power, or a freely selectable signal source with R&S NRP-Z power sensors.

The instrument can perform up to 4 power measurements simultaneously.

To connect the sensors you have the following options:
  • connect the sensor directly at a USB connector
    To connect a sensor directly via USB, use one of the appropriate adapter cables R&S NRP-Z3 or R&S NRP-Z4.
  • connect the sensor indirectly via USB using the R&S NRP-Z5 USB Sensor Hub.

For the assignment to the available connectors, see "Preparing for Use".

A sensor continuously measures the average signal power of the selected source, such as an external signal, or the output signal of the signal generator with the RF level used as reference value. The signal generator shows the result in the "NRP-Z Power Viewer Settings" settings dialog, but you can also permanently display the readings in the block diagram.

Further functions of the R&S SMA related to R&S NRP-Z power sensors are:
  • Acquisition of level correction data, see "User Correction".
    The acquired level correction data is used to create and activate lists in which level correction values predefined by the user are freely assigned to RF frequencies. Correction is performed by the user-defined table values being added to the output level for the respective RF frequency.
  • NRP-Z Level Control, see "NRP-Z Level Control".
    Note that "NRP-Z Power Viewer" automatically disables "NRP-Z Level Control", and vice versa.
  • Sweep measurements on DUTs (see "NRP-Z Power Analysis"). To perform pulse data analysis, use a suitable power sensor, like the R&S NRP-Z81.
  • The software version of the connected power sensor can be retrieved by means of the remote control command SENSe<ch>[:POWer]:TYPE?.
    Use the "NRP-Z Info/Update" dialog to update the sensor software.

"NRP-Z Power Viewer" automatically disables "NRP-Z Level Control" and "NRP-Z Power Analysis", and vice versa.

 


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