Rohde & Schwarz NRV-Z51 DC-18GHz 300mW Power Sensor

The Rohde & Schwarz NRV-Z51 is a thermal power sensor that delivers precise average power measurements across DC to 18 GHz. It accurately characterizes both continuous wave signals and modulated or distorted waveforms through RMS weighting of spectral components, maintaining exceptional linearity across frequency, temperature, and signal variations. The sensor integrates absolute calibration memory, eliminating manual calibration factor entry and enabling immediate measurement upon connection to compatible base units.

Technical Specifications

• Frequency Range: DC to 18 GHz


• Power Measurement Range: 1 µW to 100 mW


• Maximum Power: 300 mW


• Linearity Uncertainty: 0.02 dB (0.5%)


• Display Noise: 22 nW


• Impedance: 50 Ω


• RF Connector: Type N (male)


• Cable Length: 1.3 m

Key Features

• Absolute calibration with sensor-specific parameter memory


• CW and modulated signal measurement capability


• Consistent performance across frequency bands and temperature ranges


• Integral 1.3 m interconnecting lead


• Minimal contribution to overall measurement uncertainty

Typical Applications

• RF and microwave system testing and maintenance


• Power amplifier output characterization


• Modulated envelope carrier signal measurement

Compatibility & Integration The NRV-Z51 interfaces with Rohde & Schwarz NRVS, NRVD, URV35, and URV55 base units, providing plug-and-play integration into existing RF measurement systems without requiring external power or calibration setup.