AN/FPS-7 Radar

{{Infobox radar

|name = AN/FPS-7

|image = AN-FPS-7 Radar.jpg

|caption = General Electric AN/FPS-7 Radar

|country = United States

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|type = Long Range Search Radar

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|other names= AN/ECP-91 AN/FPS-107 (V1, V2)

}}

The AN/FPS-7 Radar was a Long Range Search Radar used by the United States Air Force Air Defense Command.

In the mid-1950s General Electric developed a radar with a search altitude of 100,000 feet and a range of 270 miles. This radar was significant in that it was the first stacked-beam radar to enter into production in the United States. The antenna was fed signals from several feed horns arranged in a vertical stack, producing a series of horizontal beams separated vertically in space. By comparing the returns from the different feeds, altitude information could be determined without the need for a separate height-finder radar.

Designed to operate in the L-band at 1250 to 1350 MHz, the radar deployed in late 1959 and the early 1960s. The AN/FPS-7 was used for both air defense and air traffic control in New York, Kansas City, Houston, Spokane, San Antonio, and elsewhere.

In the early 1960s a modification called AN/ECP-91 was installed to improve its electronic countermeasure (ECM) capability. About thirty units were produced. Another modification was the AN/FPS-107 which also operated in the L-Band which was manufactured by Westinghouse.

In accordance with the Joint Electronics Type Designation System, the radar's "AN/FPS-7" designation represents the 7th design of an Army-Navy fixed radar(pulsed) electronic device for searching.{{cite book|last=Winkler|first=David F.|title=Searching the Skies: The Legacy of the United States Cold War Defense Radar Program|chapter=Radar Systems Classification Methods|page=73|publisher=United States Air Force Headquarters Air Combat Command|location=Langley AFB, Virginia|year=1997|lccn=97020912|url=https://nuke.fas.org/guide/usa/airdef/1997-06-01955.pdf}} {{source-attribution}}{{cite book|author=Avionics Department|title=Electronic Warfare and Radar Systems Engineering Handbook|edition=4|chapter=Missile and Electronic Equipment Designations|pages=2–8.1|publisher=Naval Air Warfare Center Weapons Division|location=Point Mugu, California|year=2013|url=https://apps.dtic.mil/sti/tr/pdf/ADA617071.pdf}}