The Rohde & Schwarz NRT-Z44 is a directional power sensor engineered for accurate forward and reverse power measurements across 200 MHz to 4 GHz. It delivers precise RF power flow analysis and signal reflection characterization for transmitter testing, antenna validation, and RF generator monitoring in industrial, medical, and R&D environments. The sensor supports modern digital modulation standards and functions as a standalone instrument via digital interface.
Technical Specifications
Frequency Range: 200 MHz to 4 GHz
Power Measurement Range
• Average Power: 0.0007 W to 120 W
• Peak Power: Up to 300 W
Standing Wave Ratio (50 Ω reference): Maximum 1.06; maximum 1.07 from 0.4 GHz to 3 GHz
Insertion Loss
• Maximum 0.06 dB from 0.4 GHz to 1.5 GHz
• Maximum 0.09 dB from 1.5 GHz to 4 GHz
Directivity: Minimum 30 dB from 0.4 GHz to 3 GHz
Measurement Accuracy (CW): 3.2% of reading (0.14 dB) plus zero offset from 0.3 GHz to 4 GHz
Temperature Coefficient: 0.25%/K (0.011 dB/K) from 0.4 GHz to 4 GHz
– Key Features
• Average power and peak envelope power (PEP) measurement
• Modulated and unmodulated burst analysis via average power and duty cycle
• Peak-to-threshold exceedance monitoring (CCDF)
• Crest factor determination and power ratio measurement
• Return loss, SWR, reflection coefficient, and reverse-to-forward power ratio analysis
• Amplitude distribution display
• Independent operation with digital interface (RS-232 or PC Card)
• N female connector
– Typical Applications
Transmitter and antenna testing across GSM/EDGE, WCDMA, CDMA2000®, TETRA, DECT, DAB, and DVB-T systems. Power monitoring in radiocommunications infrastructure and signal reflection assessment in RF system validation.
– Compatibility & Integration
Operates independently or integrates with base units via direct PC connection. Compatible with predecessor NAP sensor systems via optional hardware.
