Rohde & Schwarz NRV-Z4 100KHz-6GHz 20mW Power Sensor

The Rohde & Schwarz NRV-Z4 is a high-sensitivity diode power sensor delivering true RMS measurements across 100 kHz to 6 GHz. It measures power from 100 pW to 20 mW with absolute calibration, eliminating the need for manual calibration factor entry or reference adjustments upon connection to compatible base units. The sensor excels with complex signals - harmonically rich, noisy, or modulated waveforms - while maintaining excellent long-term stability and temperature response.

Technical Specifications

• Frequency Range: 100 kHz to 6 GHz


• Power Measurement Range: 100 pW to 20 mW true RMS

Sinewave signals: up to 20 mW

Harmonic, noise, or modulated signals: typically up to 10 mW

Impedance: 50 Ω

Connector: Type N (Male)

Maximum Input Power: 20 mW average and peak (+13 dBm)

Standing Wave Ratio (SWR): - 0.1 to 100 MHz: ≤ 1.01 - 0.1 GHz to 2 GHz: ≤ 1.10

Measurement Uncertainty:

Zero Error: ±50 pW

Meter Noise: 20 pW

Linearity Uncertainty: 0.03 dB

Calibration Uncertainty: 0.05 to 0.06 dB

Cable Length: 1.3 m

Key Features

• True RMS power measurement independent of signal modulation or harmonic content


• Absolute calibration with sensor-specific parameter memory


• Broad dynamic range spanning 7 orders of magnitude (100 pW to 20 mW)


• High long-term stability and superior temperature response


• Exceptional sensitivity for precision low-power applications

Typical Applications

• RF and microwave power measurement


• Signal characterization across harmonic-rich spectra


• Modulated and noise-laden signal analysis

Compatibility & Integration The NRV-Z4 integrates directly with Rohde & Schwarz NRVS, NRVD, URV35, and URV55 base units without requiring manual setup or calibration factor input.