The AN/FPS-5 was a nodding height-finding radar used by the United States Air ForceAir Defense Command. It was unique in that it used a fixed reflector and a moving feed in order to steer the beam. It was produced in the early 1950s by Hazeltine, and deployment was limited. It was normally used with the AN/FPS-3 search radar.
In accordance with the Joint Electronics Type Designation System (JETDS), the "AN/FPS-5" designation represents the 5th design of an Army-Navy electronic device for fixed ground search radar.[1][2] The JETDS system also now is used to name all Department of Defense electronic systems.
