The Rohde & Schwarz NRP40TN is a thermal power sensor for accurate power measurements across DC to 40 GHz. Built for reference measurements and calibration labs, this sensor delivers highest-level measurement accuracy through sophisticated design that minimizes noise and eliminates thermal environmental drift. Excellent impedance matching across the entire frequency range reduces reflection-induced measurement uncertainty, while internal calibration tests ensure stable, reliable operation. The sensor tolerates any modulation format and achieves measurement speeds exceeding 500 measurements/s in buffered triggered mode.
Technical Specifications
• Frequency Range: DC to 40 GHz
• Power Measurement Range: −35 dBm to +20 dBm (300 nW to 100 mW)
• Connector Type: 2.92 mm (m)
• Impedance Matching (SWR):
– DC to 100 MHz: 100 MHz to 2.4 GHz: 2.4 GHz to 12.4 GHz: 12.4 GHz to 18.0 GHz: 18.0 GHz to 26.5 GHz: 500 measurements/s (buffered triggered mode)
• Weight: 0.34 kg
– Key Features
• Internal calibration tests for stable, repeatable measurements
• Hardware optimized for noise minimization
• Thermal-stable measuring cell with rapid equilibration to applied power
• Modulation-agnostic design accepts any signal type
• Detachable cable with screw connection prevents accidental disconnection
– Interfaces & Connectivity
• LAN interface
• USB (via NRP-ZKU or NRP-ZKC cable)
• Trigger I/O port
• SCPI remote control support
– Compatibility & Integration
Operates standalone via NRP2 base unit or integrates with PC/laptop via USB. Compatible with Rohde & Schwarz signal generators, signal and spectrum analyzers, and network analyzers.
















