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About: RCA AN/FPS-4 radar     Goto   Sponge   NotDistinct   Permalink

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The AN/FPS-4 Radar was a Height-Finder Radar used by the United States Air Force Air Defense Command. MIT's Radiation Laboratory developed and produced the first version of this radar near the end of World War II. Zenith produced the A-model sets in the post-war period. The vertically mounted antenna was three feet wide and ten feet long. Two operators were needed to run the set. The initial model operated at a frequency of 9000 to 9160 MHz and had a maximum reliable range for bombers of 60 miles at 10,000 feet.