The Aeroflex RDX-7708BRW Weather Radar Test Set is a precision instrument for performance verification and calibration of airborne weather radar systems. It simulates radar return signals across the X band, enabling comprehensive functional testing and maintenance of radar transmitters and receivers in avionics service centers and aircraft maintenance facilities.
Technical Specifications
Frequency Performance
• Operating range: 9295 to 9425 MHz (X band)
• Reference RF input: 78.6616 MHz (RDX-7708BRW specific)
• Frequency counter accuracy: ±3 kHz with 1 kHz resolution
RF Output Characteristics
• Output level range: -50 to -127 dBm in 1 dB steps (at 20 dB coupler output)
• Output accuracy: ±2 dB over frequency and attenuation range
• RF ON/OFF ratio: ≥70 dB
• Contour boost: 0 to 19.9 dB in 0.1 dB increments (for outputs ≤-70 dBm)
Signal Modulation and Generation
• Pulse and continuous wave signal capability
• Internal PRF generator: 0 to 9999 pps with 1 Hz resolution
• Output pulse width: 0 to 99 ms and 270 µs (fixed) with 0.1 µs resolution
• Return delay: 1 to 999 µs or nautical miles with 1 unit resolution
• Doppler offset: 0 to +29 kHz in 1 kHz steps
• Built-in variance modulator and Doppler shift capability
Measurement and Power
• Peak power indicator: 40 to 250 W range with -0.6 dB accuracy and 1 W resolution
• Transmitter power measurement via waveguide-mounted RF power module
• Monitor outputs for detector, spectrum analyzer, and sync signals
Electrical and Physical
• Power requirements: 110/220 VAC, 50-400 Hz
• Power consumption: 100 W
• Dimensions: 427 mm (W) × 178 mm (H) × 467 mm (D)
• Weight: 15 kg
– Key Features
• GPIB (IEEE 488-1978) interface for remote control and automation
• Precision attenuation in 1 dB steps with ±2 dB accuracy
• Fine Doppler control supporting 1 kHz resolution
• Flexible pulse width and PRF programming for radar simulation
• Integrated RF power measurement without external instrumentation
– Typical Applications
Weather radar system calibration, airborne radar receiver testing, transmitter performance verification, maintenance validation in avionics service operations, and functional acceptance testing of installed weather radar systems.
– Compatibility & Integration
Standard GPIB connectivity enables integration into automated test systems. Supplied with line cord, microwave coaxial cable, BNC video detector cable, RF power module, and 20 dB attenuator.
