The Marconi IFR Aeroflex 6204B is a 10 MHz to 46 GHz microwave test set that integrates signal generation, frequency measurement, and power analysis into a single platform. Built for scalar network analysis, component characterization, and field service diagnostics, it delivers precision measurements across the microwave spectrum with real-time fault location capability and 1 Hz frequency resolution.
Technical Specifications
Frequency Range
• 10 MHz to 46 GHz
Signal Generator
• Synthesized CW and swept output
• Output power: 100 mW maximum
• Standard power range: -20 dBm to +20 dBm
• With Option 001 (70 dB step attenuator): -90 dBm to +20 dBm
• Signal purity (typical, 20 kHz offset, above 2 GHz): < -60 dBc
• Residual FM: 2 Hz to 1601 Hz (user selectable)
Frequency Counter
• Resolution: 1 Hz
Power Meter
• Measurement range: 0.01 dB resolution
• Accuracy (including flatness at 0 dBm): ±1 dB, ±0.5 dB typical
• Dynamic calibrator and EEPROM corrected detectors
Fault Location & Analysis
• Real-time fault location: 0.1% accuracy
• Return loss and VSWR-to-distance measurement
• Reflection coefficient measurements (requires 6210 Reflection Analyzer option)
• Time domain measurements (requires 6210 Reflection Analyzer option)
– Key Features
• Precision scalar network measurements across 46 GHz bandwidth
• Integrated frequency counter with 1 Hz resolution
• Built-in power meter with ±0.5 dB typical accuracy
• Dynamic calibrator for insertion loss validation
• Programmable via GPIB/IEEE 488.2 interface
• External keyboard interface for macro editing and operator instructions
• Rear panel BNC output: voltage proportional to frequency (1 V/GHz or 0.5 V/GHz selectable, 20 V maximum)
• Optional 3.5-inch floppy disk drive for data storage (Option 003)
– Typical Applications
• Component and subsystem calibration
• Field maintenance and troubleshooting
• Automated test sequences via GPIB control
• Return loss and reflection analysis
• Transmission line fault identification
– Compatibility & Integration
GPIB/IEEE 488.2 control enables integration into automated test systems. Optional 70 dB step attenuator (Option 001) extends minimum power to -90 dBm. Optional 6210 Reflection Analyzer adds reflection coefficient and time domain capability. Optional 6149 Pulse Generator & Modulator supports pulse and modulation applications.
















