Instrument Function
R&S
®
SMB100A
167Operating Manual 1407.0806.32 ─ 21
Using the R&S NRP-Z5 Sensor Hub
The R&S NRP-Z5 USB Sensor Hub (high-speed USB 2.0) can host up to 4 R&S NRP-
Z sensors and provides simultaneous internal and external triggering of all connected
sensors. You can directly connect the R&S NRP-Z Sensors to the standard NRP sen-
sor connectors of the hub.
The hub is connected to the R&S instrument via USB with the adapter cable R&S
NRP-Z4.
See also the R&S website http://www.rohde-schwarz.com in section "Power Meters &
Voltmeters > R&S NRP-Z Sensors" for information on the sensor hub and the available
accessories.
The instrument automatically detects a connected R&S NRP-Z power sensor and indi-
cates it in the "NRP-Z Power Viewer" dialog. Each connected sensor is assigned to
one of the four channels, according to the sequence of connection.
For device specific information on the connected sensor see the Chapter 5.2.3.5,
"NRP-Z Info/Update", on page 97 dialog. For information on the scope of your power
sensor refer to the manual of your R&S NRP-Zxx power sensor.
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 SMB related to R&S NRP-Z power sensors are:
●
Acquisition of level correction data, see Chapter 5.3.5.6, "User Correction",
on page 158.
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 5.3.5.5, "NRP-Z Level Control", on page 154.
Note that "NRP-Z Power Viewer" automatically disables "NRP-Z Level Control",
and vice versa.
●
The software version of the connected power sensor can be retrieved by means of
the remote control command SENSe<ch>[:POWer]:TYPE? on page 324.
Use the Chapter 5.2.3.5, "NRP-Z Info/Update", on page 97 dialog to update the
sensor software.
"NRP-Z Power Viewer" automatically disables NRP-Z Level Control, and vice versa.
NRP-Z Power Viewer Settings
► To access the dialog for configuring the RF signal level, perform one of the follow-
ing:
RF Block
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