The Marconi IFR Aeroflex 6428 is a millimeter-wave power head for RF power measurement in the 26.5 GHz to 40 GHz band. This accessory extends the measurement capability of compatible IFR and Aeroflex power meters into high-frequency applications, handling up to 10 mW of input power. Designed for precision and repeatability, it delivers accurate power readings across demanding test, laboratory, and production environments.
Technical Specifications
• Frequency Range: 26.5 GHz to 40 GHz
• Maximum Power Handling: 10 mW
– Key Features
• Purpose-built for millimeter-wave power measurement
• Direct interface with IFR and Aeroflex meter platforms
• Reliable performance in high-frequency test environments
• Compact form factor for integration into test setups
– Typical Applications
• Millimeter-wave component validation and characterization
• RF power verification in laboratory settings
• Production testing of high-frequency assemblies
• Antenna and transmission line power measurement
– Compatibility & Integration
The 6428 power head integrates with IFR and Aeroflex power meter instruments, providing direct measurement capability without external conversion or interface adapters. Its design assumes standard RF connectors and metering protocols established across the Marconi, IFR, and Aeroflex product lines.

















