Configuring the Signal in the RF Domain
R&S
®
SMW200A
540User Manual 1175.6632.02 ─ 16
7.8.4 Using Power Sensors
The R&S SMW works with R&S NRP power sensors and thus supports various appli-
cation tasks for improving the RF signal level. Using power sensors, you can for exam-
ple determine attenuation characteristics of downstream equipment or cables. You can
use the measured values to compensate the losses with internal control functions or
with an external control circuit in real time.
R&S NRP sensors are highly accurate standalone measuring devices, suitable for a
wide range of applications. The devices communicate directly with the signal genera-
tor, calculate the average or peak power internally, include S-parameter correction and
return the results to the generator.
The R&S SMW works with any sensor of the R&S NRP series and can perform up to
four power measurements simultaneously.
Check the firmware version of the R&S NRP sensors regularly. Update the firmware, if
necessary.
See Chapter 7.8.4.5, "How to Update the Sensor Firmware", on page 552.
You can perform the following functions when working with power sensors:
●
Chapter 7.8.4.1, "Connecting R&S NRP Power Sensors to the R&S SMW",
on page 540
Overview on the supported connectors, connection options and the required acces-
sories.
●
Chapter 7.8.4.2, "NRP Sensor Mapping", on page 541
Shows all R&S NRP sensors connected to the instrument, or in the LAN.
●
Chapter 7.8.4.3, "NRP Power Viewer", on page 543
A function for measuring and monitoring the RF output power or a user-defined sig-
nal source.
●
Chapter 7.8.4.4, "NRP Info Update", on page 551
Sensor-specific information and direct access to update the sensor firmware.
● Connecting R&S NRP Power Sensors to the R&S SMW..................................... 540
● NRP Sensor Mapping........................................................................................... 541
● NRP Power Viewer............................................................................................... 543
● NRP Info Update...................................................................................................551
● How to Update the Sensor Firmware....................................................................552
7.8.4.1 Connecting R&S NRP Power Sensors to the R&S SMW
R&S NRP sensors are connected to the R&S SMW in the following ways:
●
Connection to the SENSOR connector
– R&S NRP-ZK6 (six-pole interface cable) for R&S NRPxx power sensors
– No additional cable for R&S NRP-Zxx power sensors (cable is fixed on the sen-
sor)
●
Connection to the USB connector
Improving Level Performance
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