Instrument Function
R&S
®
SMF100A
196
Operating Manual 1167.2319.02 ─ 12
For a more detailed analysis of the power of the RF signal, use the
function. It enables you, e.g. to perform sweep measurements on the DUT, or
analyse pulse data with the aid of a R&S NRP-Z81 power sensor.
5.4.6.1
NRP-Z Power Viewer
The R&S
SMF 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 sen-
sors.
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
Chapter 2, "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
settings dialog, but you can also permanently display the readings in
the block diagram.
Further functions of the R&S
SMF related to R&S NRP-Z power sensors are:
●
Acquisition of level correction data, see
Chapter 5.4.7, "User Correction"
on page 245.
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
Chapter 5.4.6.2, "NRP-Z Level Control"
Note that "NRP-Z Power Viewer" automatically disables "NRP-Z Level Control",
and vice versa.
●
Sweep measurements on DUTs (see
Chapter 5.4.6.3, "NRP-Z Power Analysis"
on page 207). 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
Chapter 5.2.3.5, "NRP-Z Info/Update"
on page 107 dialog to update the
sensor software.
"NRP-Z Power Viewer" automatically disables
RF Level