The Agilent/Keysight 8743A is a reflection and transmission test unit designed for evaluation of microwave components from 2.0 to 12.4 GHz. This compact instrument operates at 50-ohm impedance and integrates a reflectometer system with a transmission test system, selectable via push-button control. The 8743A uses 20 dB couplers to perform measurements on coupled ports, isolating the DUT from the RF source. It accepts input via Type N (female) connectors and routes signals through APC-7 connectors for measurement and load paths. Purpose-built for laboratory environments, the unit delivers precise, repeatable high-frequency characterization of RF and microwave devices when integrated with vector network analyzers or dedicated test sets.
Technical Specifications
• Frequency Range: 2.0 to 12.4 GHz
• Impedance: 50 ohms
• Input Connector: Type N (female), stainless steel
• Signal Routing Connectors: APC-7
• Coupler Isolation: 20 dB couplers measure on coupled ports
– Key Features
• Dual-mode operation: reflection and transmission measurement selection
• Push-button mode switching for rapid configuration changes
• Coupled-port measurement architecture eliminates direct source coupling to test port
• 50-ohm system impedance throughout RF signal chain
• Stainless steel Type N input for reliability in production and field test environments
– Typical Applications
• Microwave component characterization and acceptance testing
• Return loss and reflection coefficient measurement
• Forward and reverse transmission analysis
• High-frequency signal routing and test fixture integration
• Laboratory measurement of filter, amplifier, and network performance
– Compatibility & Integration
Designed for use with vector network analyzers and RF test sets. The 8743A provides a dedicated measurement interface, simplifying integration into automated test systems. Discontinued product; available inventory offered for legacy system support.
