Rohde NRP6AN Overview
In EMC applications, usually only the average power is of interest. This is where the R&S NRP6AN average power sensors are the perfect fit. They cover measurement ranges that are used in telecommunications as well as the important lower frequency bands down to 8 kHz. Users benefit from the excellent properties of the three-path diode power sensors, including a dynamic range of up to93 dB, very low influence of the modulation on the measurement and outstanding impedance matching.
Several models available
Rohde and Schwarz offers several versions of its average power sensor. Both of the models shown below are also available in a LAN version, which would have the same part number but with the letter "N" on the end. For example, NRP6A and NRP6AN.
| Sensor type | Frequency range | Level range | Connector type |
| NRP6A(N) | 8 kHz to 6 GHz | -70 dBm to +23 dBm | N (m) |
| NRP18A(N) | 8 kHz to 18 GHz | -70 dBm to +23 dBm | N (m) |
Connecting the sensor to your computer or instrument
These power sensors can use various, detachable cables for connection to diverse display units. A screw connection is provided on the sensor end to prevent accidental loosening of the cable.
The R&SNRP-ZKU USB interface cable can be used to connect a power sensor to a laptop/PC via the USB interface. This is an extremely space-saving and also cost-efficient solution that does not require a base unit. Two software tools - R&S Power Viewer Plus and R&S NRPV virtual power meter - are available to simplify sensor operation from a laptop/PC. These tools support all measurement functions implemented in the sensors.
The R&S NRP-ZK6 interface cable is intended for operating a power sensor on the R&S NRX base unit. It can also be used to connect the power sensor to diverse Rohde & Schwarz signal generators and signal and spectrum analyzers to enhance these instruments with a high performance power meter.
Please note, the NRP-ZKU and NRP-ZK6 are sold separately.
Multiple ways to operate the R&S NRP power sensors
LAN versions
As mentioned previously, both sensors in this series are available with a LAN connection. These are denoted by an "N" at the end of the part number. LAN models are equipped with an additional LAN interface without compromising sensor features or performance. Please note, the LAN connection is not a standard feature for the series and is only available on certain models.
LAN power sensors are ideal for remote monitoring applications, e.g. for satellite systems or particle accelerators, where sensors need to be placed at different points in the system. The LAN interface makes it easy to overcome large distances between the various test points and the control center.
In LAN operation, the sensors are powered via a PoE capable LAN interface on the power sensor. If the LAN used does not support the PoE standard, then the sensors are connected to the LAN via a PoE switch (R&S NRP-ZAP2).
NRP series overview
Rohde & Schwarz offers several varieties of its NRP power sensor. The NRPxxS(N), NRPxxT(N), NRPxxTWG, NRPxxA(N) and NRP-Zxx power sensors are immediately ready for use. In contrast to conventional power sensors, no calibration is required prior to making measurements since the sensors are fully characterized over frequency, level and temperature and feature longterm stability. All calibration data is stored in the sensors, so they function as independent measuring instruments. Usually, no zeroing is required. Users can plug in a sensor and simply start measuring.
| Versatile use of the R&S NRP power sensors | ||||||
| Available measurement functions (modes) | ||||||
| Sensor type | Features | Continuous average | Trace | Timeslot/ time gate | Burst average | Statistics |
| NRPxxS(N) three-path diode power sensors |
fast, accurate and packed with features to measure CW and modulated signals | • | • | • | • | - |
| NRP33SN-V TVAC-compliant three-path diode power sensor |
specially designed for use in thermal vacuum (TVAC) chambers | • | • | • | • | - |
| NRPxxT(N)/TWG thermal power sensors |
most accurate power measurements for reference applications and use in calibration labs | • | - | - | - | - |
| NRPxxA(N) EMC average power sensors |
accurate average power measurements for EMC applications | • | - | - | - | - |
| NRP-Z8x wideband power sensors |
time domain analysis and automatic pulse analysis for radar applications and universal use | • | • | • | • | • |
| NRP-Z211/-Z221 two-path diode power sensors |
cost-effective power measurement solution for production | • | • | • | • | - |
| NRP-Z27/-Z37 power sensor modules |
level calibration of signal sources in conjunction with the R&S FSMR measurement receiver | • | - | - | - | - |
| NRP-Z28/-Z98 level control sensors |
highly accurate signal level generation in conjunction with a signal generator | • | •1) | •1) | •1) | - |
| 1) NRP-Z28 only. | ||||||
[split]
