The Agilent/Keysight 8512A Reflection/Transmission Test Set is a measurement accessory designed to interface with the HP 8510 network analyzer for characterizing RF and microwave devices under test. The test set employs a single coupler architecture with three RF to IF converters to enable simultaneous reflection (S11) and transmission (S21) parameter measurements across the microwave frequency spectrum.
Technical Specifications
The 8512A uses the HP 85132C 7 mm Test Port Return Cable, a 36-inch cable with dual 7 mm connectors rated to 18 GHz. The test set lacks internal step attenuators for incident power control and does not include bias tees for external DC bias application to test port center conductors. – Key Features • Three RF to IF converter channels for simultaneous reflection and transmission measurements
• Single coupler signal separation architecture
• Direct DUT connection via HP 85132C cable (DC to 18 GHz)
• Optional IF switching capability enabling up to four test sets to be connected simultaneously to the HP 8510B with front-panel selection
• S-parameter characterization across microwave frequencies – Compatibility & Integration The 8512A is engineered exclusively for operation with the HP 8510 network analyzer. The IF switching option allows multi-test-set configurations under single analyzer control, expanding measurement flexibility for complex test scenarios. – Product Status The Agilent/Keysight 8512A is obsolete. Operating and service manuals remain available through Keysight’s self-support resources. Direct product support and sales have been discontinued.
