The Marconi IFR Aeroflex 6581 Transmission Line Test Head is a specialized accessory that interfaces with compatible Marconi/IFR network analyzers to deliver precise characterization of transmission lines and associated RF components. It measures critical parameters including impedance, return loss, and insertion loss—essential metrics for optimizing communication and RF system performance across DC to 26.5 GHz.
Technical Specifications
Frequency Range
• Operating range determined by host network analyzer: up to 20 GHz and 26.5 GHz configurations available
Measurement Parameters
• Return Loss: Ratio of reflected to incident power; VSWR and dB specifications vary by frequency band
• Insertion Loss: Signal power loss through transmission line or component
• Impedance Characterization: Characteristic impedance determination across frequency bands
Performance by Frequency Band
• 0.01–0.05 GHz: 1 dB return loss
• 0.05–2 GHz: 33 dB return loss
• 2–8 GHz: 30 dB return loss
• 8–12 GHz: 25 dB return loss
• 12–26.5 GHz: 20 dB return loss
Power Specifications
• Maximum reverse input power: 100 mW
• Total power supplied: Not to exceed 1.25 W or 2.5 W depending on configuration
Options Impact
• Option 001 (70 dB step attenuator): May degrade minimum return loss by up to 5 dB
• Option 002 (field-replaceable RF connectors): May degrade minimum return loss by up to 3 dB
– Key Features
• Measures return loss, insertion loss, and impedance across extended frequency range
• RF connectors matched to host analyzer ports
• Proprietary control and data interface integration
• Field-replaceable connector options available
– Compatibility & Integration
Designed for Marconi/IFR network analyzers including Marconi 6200 series (to 20 GHz) and 6203 series (to 26.5 GHz). Utilizes host analyzer control interfaces and RF port architecture for seamless system integration.
