The Rohde & Schwarz NRP18S(N) is a three-path diode power sensor for average and CW power measurements from 10 MHz to 18 GHz. It delivers a 93 dB dynamic range across -70 dBm to +23 dBm with high accuracy independent of modulation type. The three-path architecture minimizes susceptibility to interfering signals and harmonics, enabling reliable measurements on GSM, 3GPP, LTE, and LTE-Advanced signals. Measurement speed reaches 50,000 readings/s in fast continuous average mode, or up to 10,000 triggered measurements/s with 100 µs minimum repetition time in buffered mode. The sensor stores full calibration data internally, functioning as a standalone instrument or integrating with the R&S NRP2 base unit, USB-connected PC/laptop, or networked Rohde & Schwarz systems.
Technical Specifications
• Frequency range: 10 MHz to 18 GHz
• Power range: -70 dBm to +23 dBm
• Dynamic range: 93 dB
• Peak power range: 33.01 dBm
• Measurement noise: 20 pW typical
• VSWR: 1.13:1 (up to 2.4 GHz), 1.25:1 (above 2.4 GHz)
• Connector: N-Type Male
• Impedance: 50 Ohms
– Key Features
• Simultaneous three-path diode operation for modulation-independent accuracy
• Continuous average, burst average, timeslot average, gate average, and trace measurement modes
• Trace mode video bandwidth: 100 kHz
• Buffered mode: up to 8192 measured values per block with 10 µs minimum aperture; continuous acquisition to 81.92 ms
• High-power variants (NRP18S-10/20/25) with integrated 10/20/25 dB attenuators for measurements up to 2 W, 15 W, and 30 W respectively
• Automatic mismatch error correction
• Internal calibration—zeroing typically not required
– Typical Applications
Wireless signal characterization, production test, R&D, and service environments requiring sub-microwatt sensitivity or multi-watt peak power measurement.
– Compatibility & Integration
• USB and Ethernet/LAN interfaces
• Direct control via R&S NRP2 base unit
• PC/laptop operation using R&S Power Viewer Plus or R&S NRPV virtual power meter software
• Remote LAN control with built-in web GUI
• Power over Ethernet (PoE) support on LAN models
• Built-in trigger input/output port
