The Rohde & Schwarz NRP18S-20 is a high-power three-path diode sensor engineered for precision average power measurements across 10 MHz to 18 GHz. It measures power from 10 nW to 15 W with an integrated 20 dB upstream attenuator, delivering a dynamic range of 93 dB and a lower measurement limit of -70 dBm. The three-path diode architecture ensures accurate readings regardless of modulation type, while measurement speeds reach 10,000 triggered measurements/s or over 50,000 readings/s in fast continuous average mode. Rise time is 100 kHz. The sensor connects via Type N male connector and interfaces through USB USBTMC for system integration and power supply. Absolute measurement uncertainty ranges from 0.083 dB to 0.198 dB at +20 °C to +25 °C. Design supports continuous average, burst average, timeslot average, gate average, and trace measurements. Impedance matching (SWR) maintains <1.14 from 10 MHz to 2.4 GHz, degrading to <1.41 above 12.4 GHz. Weight is 1 kg.
Technical Specifications
• Frequency range: 10 MHz to 18 GHz
• Measurement range: 10 nW to 15 W (-50 dBm to +42 dBm)
• Integrated attenuator: 20 dB
• Dynamic range: 93 dB
• Lower measurement limit: -70 dBm
• Rise time: 100 kHz
• Measurement speed: 10,000 triggered measurements/s; >50,000 readings/s (fast continuous); up to 100,000 readings/s (buffered)
• Minimum trigger repetition time: 100 µs
• Absolute uncertainty: 0.083 dB to 0.198 dB
• Relative uncertainty: 0.022 dB to 0.087 dB
• Impedance (SWR): <1.14 (10 MHz–2.4 GHz); <1.25 (2.4–8.0 GHz); <1.30 (8.0–12.4 GHz); <1.41 (12.4–18.0 GHz)
• Connector: Type N male
• Weight: 1 kg
– Key Features
• Three-path diode architecture optimized across distinct power ranges
• Handles high power to 15 W without saturation
• USB USBTMC interface for direct PC and base unit connection
• Supports buffered mode for unlimited-duration measurements at high sampling rates
• Detachable cables (R&S NRP-ZKU or R&S NRP-ZK6) enable flexible deployment
– Typical Applications
• Production test and manufacturing
• R&D laboratories
• Calibration facilities
– Compatibility & Integration
• USB USBTMC connectivity for power and data
• Optional LAN interfaces available on specific models
• Compatible with detachable sensor cables for modular operation
