The Rohde & Schwarz NRT-Z44 is a high-precision directional power sensor for accurate RF power and reflection measurements across 200 MHz to 4 GHz. It operates as a standalone instrument capable of direct PC connection via USB, RS-232, LAN, or IEC625 interfaces, eliminating the need for external base units. The sensor delivers a 35 to 40 dB dynamic measurement range with average power capability from 3 mW to 120 W and peak power measurement to 300 W.
Technical Specifications
Power Measurement
• Average Power: 3 mW to 120 W
• Peak Power: 75 W to 300 W
• Dynamic Range: 35 to 40 dB
Frequency Response
• Operating Range: 200 MHz to 4 GHz
RF Characteristics
• SWR (50 Ω): ≤1.07 (0.2–3 GHz); ≤1.12 (3–4 GHz); typically ≤1.06
• Insertion Loss: ≤0.06 dB (0.2–1.5 GHz); ≤0.09 dB (1.5–4 GHz)
• Directivity: ≥30 dB (0.2–3 GHz); ≥26 dB (3–4 GHz)
Physical
• Dimensions: 120 × 95 × 39 mm
• Weight: 0.65 kg
• Display: 5″ TFT touchscreen (800 × 480)
– Key Features
• Measures average power (RMS), burst power, peak envelope power (PEP), and crest factor
• Calculates load matching from forward and reverse power measurements
• CCDF (Complementary Cumulative Distribution Function) analysis
• Supports remote operation to 500 meters via serial interface
• 5-inch color touchscreen with direct measurement display
– Typical Applications
• Base station maintenance and transmitter monitoring
• EMC test setups requiring real-time power data
• Continuous field-based power collection
• Remote-controlled station operations
• Modulation-independent power assessment across signal types
– Compatibility & Integration
Supports GSM/EDGE, 3GPP (W-/TD-CDMA), CDMA (IS-95), CDMA2000, PHS, NADC, PDC, TETRA, DECT, DAB, and DVB-T standards. Compatible with R&S Virtual-NRT Windows software for PC-based control and data logging. Legacy NAP series sensors connectable via optional adapter.
