Rohde & Schwarz NRV-Z3 2.5 GHz 13 mW 75 Ohm Power Sensor

The Rohde & Schwarz NRV-Z3 is a zero-bias Schottky diode power sensor engineered for precise RF and microwave power measurements in 75 Ohm systems. Operating from 1 MHz to 2.5 GHz, this high-sensitivity detector measures average power from 100 pW to 13 mW with exceptional linearity and minimal noise. The NRV-Z3 integrates directly with Rohde & Schwarz power meter base units, making it ideal for applications demanding sub-microwatt resolution across modulated and unmodulated signals.

Technical Specifications

• Sensor Type: Zero-bias Schottky diode power sensor


• Impedance: 75 Ohm


• Frequency Range: 1 MHz to 2.5 GHz


• Power Measurement Range: 100 pW to 13 mW (-70 dBm to +13 dBm)


• Average Power Handling: 70 mW


• Peak Power Handling: 70 mW


• SWR Performance: - 1 MHz to 1 GHz: ≤ 1.11

Greater than 1 GHz to 2.5 GHz: ≤ 1.20

Zero Offset: ±40 pW

Display Noise Floor: 16 pW

Linearity Uncertainty: 0.03 dB (0.7%)

Connector: Type N, 75 Ohm

Key Features

• Picowatt-level sensitivity enables detection of extremely low-power RF signals


• Excellent impedance matching across the full frequency band


• Minimal zero offset and noise floor support precision measurements below 1 µW


• Tight linearity specifications ensure measurement accuracy across the dynamic range

Typical Applications

• Cable TV network testing and verification


• Low-level RF signal detection and characterization


• Modulated signal power measurement in 75 Ohm networks


• System gain and loss measurements at RF and microwave frequencies

Compatibility & Integration The NRV-Z3 connects to Rohde & Schwarz power meter base units: NRVD, NRVS, URV35, and URV55.