Instrument Function
R&S
®
SMBV100A
164Operating Manual 1407.6062.32 ─ 08
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 sen-
sors.
You can directly connect the R&S NRP-Z Sensors to the standard NRP sensor connec-
tors of the hub. The hub is connected to the R&S instrument either with the R&S NRP-
Z2 extension cable, or via USB using 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.
To connect an R&S NRP-Z sensor directly, the R&S SMBV provides the SENSOR con-
nector. A sensor connected there is always assigned as "Sensor 1". Alternatively, you
can connect a sensor at a USB interface, using one of the USB adapters R&S NRP-Z3
or R&S NRP-Z4.
The instrument automatically detects a connected R&S NRP-Z power sensor and indi-
cates it in the "NRP-Z Power Viewer" dialog. In addition, you find device specific infor-
mation on the connected sensor in the chapter 5.2.3.6, "NRP-Z Info/
Update", on page 115. 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. The
signal generator shows the result in either the "NRP-Z Power Viewer" dialog, or directly
in the block diagram. You can activate the permanent display in the block diagram in the
"NRP-Z Power Viewer" dialog. This dialog provides access to all parameters concerning
sensor settings, like average or peak display, reference source, filter and level offset, see
NRP-Z Power Viewer Settings.
The signal generator also supports the use of R&S NRP-Z power sensors for the acqui-
sition of level correction data. 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 (see chapter 5.4.10, "User Correc-
tion", on page 181).
5.4.6.1 NRP-Z Power Viewer Settings
To open the "NRP-Z Power Viewer" menu, select "RF/A Mod" > "Configure" > "NRP-Z
Power Viewer" or use the MENU key under "RF/A Mod".
The dialog shows the settings and measurement values of the sensor selected in the field
next to the connector symbol. For indicating the parameters of another sensor, switch to
the respective sensor in the selection list.
The instrument detects connected sensors automatically and lists all in the selection field.
"Sensor 1" is firmly assigned to the sensor on the circled SENSOR socket. If no sensor
is connected to this socket, channel 1 remains not assigned. Sensors 2...4 are assigned
to the sensors at the USB connectors, according to their sequence of connection.
RF Signal and Analog Modulations - RF Block
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