The Narda 3001-30 is a directional coupler engineered for precision RF and microwave signal measurement and control. Operating across 460 MHz to 950 MHz, this Type N connector device delivers 30 dB nominal coupling with exceptional directivity and minimal insertion loss, making it ideal for test and measurement, communication, and radar applications where signal fidelity and measurement accuracy are non-negotiable.
Technical Specifications
Frequency Range: 460 MHz to 950 MHz
Coupling Performance:
• Nominal coupling: 30 dB
• Coupling variation: ±1.2 dB
• Directivity: 30 dB
• Absolute calibration accuracy: ±0.1 dB per 10 dB step
Transmission Characteristics:
• Insertion loss: 0.2 dB maximum (excluding coupled power)
• VSWR: 1.15:1 maximum on primary and secondary lines
Power Handling:
• Average power rating: 500 W
• Peak power rating: 10 kW
• Incident power (30 dB coupling): 500 W
• Reflected power (30 dB coupling): 500 W
Physical & Environmental:
• Connector: Type N (Female)
• Weight: 0.70 kg
• Operating temperature: −54°C to +105°C
• Storage temperature: −55°C to +125°C
• Environmental classification: Commercial, Military
The unit meets MIL-STD-202F requirements for humidity (method 103B, condition B), mechanical shock (method 213B, condition J at 30G/11 msec), altitude (method 105G, condition B to 50,000 feet), vibration (method 204D, condition B), and thermal shock cycling (method 107D, condition A across 5 cycles).
– Key Features
• Stable 30 dB coupling across the 460–950 MHz band with tight ±1.2 dB variation
• High directivity at 30 dB minimizes measurement errors from reflected signals
• Low 0.2 dB insertion loss preserves signal integrity in cascade configurations
• Excellent VSWR (1.15:1) ensures minimal reflections on both ports
• Calibration accuracy of ±0.1 dB per 10 dB step supports traceable measurements
• Dual-rated for commercial and military environments with comprehensive environmental testing
– Typical Applications
• RF/microwave test benches and measurement setups
• Power monitoring and signal sampling in communication systems
• Incident and reflected power measurement in radar and antenna systems
• System characterization where low loss and high directivity are critical
– Compatibility & Integration
Type N female connectors on all ports enable direct integration with standard 50 Ω RF cable and instrumentation. The 0.70 kg form factor and modular connector design allow flexible bench and system-level deployment across laboratory and field environments.
