Bird RF Directional Coupler

Bird RF Directional Coupler

Original Bird RF directional coupler used for measuring forward and reflected RF power in radio, radar, and communications systems. The front calibration chart shows compatibility with multiple Bird wattmeter models across a wide frequency range. Features original coaxial connectors and rugged aluminum housing. An excellent piece of vintage RF test equipment for military communications, radar, or radio collections. Untested and sold as a collectible display piece.