The SCR-270 was one of the first operational early-warning radars. It was the U.S. Army's primary long-distance radar throughout World War II and was deployed around the world. It is also known as the Pearl Harbor Radar, since it was an SCR-270 set that detected the incoming raid about 45 minutes before the 7 December 1941, attack on Pearl Harbor commenced.
Claysburg Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 6 miles (9.7 km) west of Claysburg, Pennsylvania. It was closed in 1961 due to budget constraints. The unit was eventually moved to Gibbsboro Air Force Station (RP-63), New Jersey.
Highlands Air Force Station was a military installation in Middletown Township near the borough of Highlands, New Jersey. The station provided ground-controlled interception radar coverage as part of the Lashup Radar Network and the Semi-Automatic Ground Environment network, as well as providing radar coverage for the Highlands Army Air Defense Site. The site's 240 acres (97 ha) is now the Rocky Point section in Hartshorne Woods Park of the Monmouth County Parks System.
Ground Equipment Facility QRC is an FAA radar station that was part of a Cold War SAGE radar station for aircraft control and warning "from Massachusetts to southern Virginia, and as far out to sea as possible." Benton AFS was also the first operational "regional data processing center" for the GE 477L Nuclear Detection and Reporting System.
The AN/FPS-6 Radar was a long-range height finding radar used by the United States Air Force's Air Defense Command. The AN/FPS-6 radar was introduced into service in the late 1950s and served as the principal height-finder radar for the United States for several decades thereafter. It was also used by the Royal Air Force alongside their AMES Type 80s. Built by General Electric, the S-band radar operated on a frequency of 2700 to 2900 MHz. Between 1953 and 1960, about 450 units of the AN/FPS-6 and the mobile AN/MPS-14 version were produced. The AN/FPS-90 and AN/FPS-116 radars were identical to the AN/FPS-6 except for receiver modifications.
The AN/FPS-7 Radar was a Long Range Search Radar used by the United States Air Force Air Defense Command.
The AN/FPS-20 was a widely used L band early warning and ground-controlled interception radar system employed by the United States Air Force Air Defense Command, the NORAD Pinetree Line in Canada, the USAF CONAD in the continental United States, and a variety of other users. The design started life as the Bendix AN/FPS-3 in 1950, was upgraded to the FPS-20, then spawned over a dozen different variants as additional upgrades were applied. The FPS-20 formed the backbone of the US air defense network through the early Cold War with over 200 units deployed. Most FPS-20 sites were replaced by modern equipment in the late 1960s, although a number were turned over to the FAA, modified for air traffic control use, and became ARSR-60s.
The AN/FPS-27 Radar was a long-range early warning radar used by the United States Air Force Air Defense Command.
The AN/FPS-4 Radar was a Height-Finder Radar used by the United States Air Force Air Defense Command.
The AN/FPS-14 was a medium-range search Radar used by the United States Air Force Air Defense Command.
The AN/FPS-18 was a medium-range search radar used by the United States Air Force Air Defense Command.
The AN/CPS-6 was an S-band medium-range search/height finder radar used by the United States Air Force Air Defense Command. The radar was developed during the later stages of World War II by the MIT Radiation Laboratory with the first units produced by General Electric in mid-1945. In accordance with the Joint Electronics Type Designation System, the designation represents the 6th design of an Army-Navy air transportable radar(pulsed) electronic device for searching.
The AN/FPS-5 was a nodding height-finding radar used by the United States Air Force Air 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.
Port Austin Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 1.2 miles (1.9 km) south-southwest Port Austin, Michigan. It was closed in 1988 by the Air Force.
Omaha Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 7.5 miles (12.1 km) north of Omaha, Nebraska. It was closed in 1968.
West Mesa Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 9.5 miles (15.3 km) west of Albuquerque, New Mexico. It was closed by the Air Force in 1968 and turned over to the Federal Aviation Administration (FAA). The site is now data-tied into the Joint Surveillance System (JSS).
Cambria Air Force Station is a closed United States Air Force General Surveillance Radar station. It is 3 miles (4.8 km) south-southeast of Cambria, California. It was closed in 1980.
Santa Rosa Island Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 5.8 miles (9.3 km) southwest of the Santa Rosa Island dock, California. It was closed in 1963.
Makah Air Force Station is a closed United States Air Force General Surveillance Radar station. It is located 2.4 miles (3.9 km) south of Neah Bay, Washington. It was closed in 1988 by the Air Force, and turned over to the Federal Aviation Administration (FAA).
The AN/CPS-1, also known as the Microwave Early Warning (MEW) radar, was a semi-mobile, S band, early-warning radar developed by the MIT Radiation Laboratory during World War II. It was one of the first projects attempted by the Lab and was intended to build equipment to transition from the British long-wave radar to the new microwave centimeter-band radar made possible by the cavity magnetron. The project was led by Luis Walter Alvarez.
