Instrument Function > RF Block > RF Measurement > Power Sensors
Power Sensors

The R&S SMA supports R&S NRP-Z power sensors to measure the power of the output signal in the RF path or any freely selectable source. The generator performs up to four power measurements, with the sensors either directly connected, or via the R&S NRP-Z5 USB 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 sensor connectors 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 SMA provides the SENSOR connector. 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 indicates it in the "NRP-Z Power Viewer" dialog. In addition, you find device specific information on the connected sensor in "NRP-Z Info/Update". For information on the scope of your power sensor refer to the manual of your R&S NRP-Zxx power sensor.

For a more detailed analysis of the power of the RF signal, use the "NRP-Z Power Analysis" 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.

 


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