AN/FPS-4 radar

The AN/FPS-4 Radar was a Height-Finder Radar used by the United States Air Force Air Defense Command.

AN/FPS-4

RCA AN/FPS-4 Radar
Country of origin	United States
Manufacturer	Zenith, RCA
Introduced	1948
No. built	450
Type	Height-Finder Radar
Frequency	X-band (9–9.160 GHz)
Range	60 mi (97 km)
Altitude	60,000 ft (18,000 m)
Power	250 KW
Other Names	AN/TPS-10, AN/MPS-8 (Mobile)

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.

In accordance with the Joint Electronics Type Designation System, the radar's "AN/FPS-4" designation represents the 4th design of an Army-Navy fixed radar(pulsed) electronic device for searching.^[1][2]

An updated version designated the AN/FPS-4 was produced by the Radio Corporation of America (RCA) beginning in 1948. Some 450 copies of this and the trailer-mounted AN/MPS-8 version were built between 1948 and 1955.

Technical Specs: (Radio Research catalog) X BAND HEIGHT FINDER Radar type: AN/TPS-10D. Freq band: 9230 to 9404 mc. Pwr output and range: 250KW, 60/120 mi. Indicator: RHI. Magnetron type: 6002/QK221. Rep rate: .5 & 2 microsec 539 pps. Pwr input: 115 V 400 cy AC. Mfr: RCA.

RHI 12" CRT Range 0-60,000 ft. 200 miles. Input: 115 V 400 cy AC. Mfr: RCA type AN/TPS-10D Radar

See also

• Electronics portal

• Joint Electronics Type Designation System – Unclassified designation system for United States military electronic equipment
• List of radars
• List of military electronics of the United States