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Statements

Subject Item
n2:FPS-20
rdf:type
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rdfs:label
Bendix AN/FPS-20 Radar Bendix AN/FPS-20
rdfs:comment
Radar AN/FPS-20 adalah sebuah Radar Umum Surveillance digunakan oleh Komando Pertahanan Udara Angkatan Udara Amerika Serikat. Produksi AN/FPS-20 Surveillance Radar dimulai pada tahun 1956. Ini dual-modulator, stasiun tetap, sistem pengawasan umum, yang dikembangkan oleh RADC menjadi radar surveillance utama untuk daratan Amerika Serikat. Dilengkapi untuk operasi dual-channel dengan pemancar klystron, sistem ini memberikan kemampuan pengawasan jarak jauh. 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.
dbp:name
AN/FPS-3, AN/FPS-20
foaf:depiction
n19:AN-FPS-20_Radar.jpg n19:AN-FPS-3_Radar.jpg
dcterms:subject
dbc:Ground_radars dbc:Radars_of_the_United_States_Air_Force dbc:Bendix_Corporation dbc:Military_equipment_introduced_in_the_1950s dbc:Military_radars_of_the_United_States
dbo:wikiPageID
30215822
dbo:wikiPageRevisionID
1088105741
dbo:wikiPageWikiLink
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dbo:wikiPageExternalLink
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owl:sameAs
n13:FPS-20_Radar wikidata:Q4887132 n21:4XZva n22:FPS-20 freebase:m.0g57ft8
dbp:wikiPageUsesTemplate
dbt:Cite_book n11:FPS dbt:Convert dbt:Infobox_radar dbt:Efn dbt:Aerospace_Defense_Command dbt:Refend dbt:Reflist dbt:Sfn dbt:Notelist dbt:Refbegin
dbo:thumbnail
n19:AN-FPS-20_Radar.jpg?width=300
dbp:caption
Bendix AN/FPS-20 radar
dbp:country
United States
dbp:frequency
dbr:L_band
dbp:otherNames
AN/FPS-3, AN/MPS-7, AN/FPS-64, AN/FPS-65, AN/FPS-66, AN/FPS-67, AN/FPS-91, AN/FPS-93, AN/FPS-100, AN/FPS-113, AN/GPS-4, AN/FPS-508
dbp:power
750
dbp:type
General Surveillance Radar
dbo:abstract
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 first AN/FPS-3 arrived in December 1950, slated for installation at Eniwetok Atoll to control aircraft involved in the atomic bomb tests of early 1951. Over the next few years, 48 FPS-3s were installed to replace older systems in the Lashup Radar Network. The FPS-3 and was also produced as the AN/MPS-7, a mobile version. The system used two 5J26 magnetrons at 750 kW peak power, operating at 1300 MHz a 400 Hz pulse repetition frequency (prf) and 2 microsecond pulse width. The antenna was driven at three fixed speeds of 3.3, 5 or 10 RPM, normally operating at 5. Many of the operating modules were mounted on the rotating platform, with the output signals fed via slip rings to amplifiers and displays at the base of the unit. The FPS-3 was limited to about 55,000 feet (17 km) altitude, which was seen as a limitation in light of new jet-powered bombers known to be in development in the USSR. This led to the development of the AN/GPA-27 add-on unit, increasing the altitude to 65,000 feet (20 km). Installations began in 1956. New-build units from Bendix with this equipment pre-installed became the AN/FPS-20 in 1957. Otherwise similar units with an antenna from General Electric were known as the AN/FPS-20B. The slotted-waveguide antenna pictured above the AN/FPS-20 is for the associated IFF system. The FPS-20s were simple pulse-radar systems and subject to jamming using basic techniques. This led to a second series of upgrades to provide anti-jamming capabilities starting in 1959. Among these were the GPA-102 (MK-448) which turned an FPS-20 into an FPS-64 and a FPS-20A to an FPS-66, and the GPA-103 (MK-447) which turned a FPS-20 into an FPS-65 and the FPS-20A into an FPS-67. Similar upgrades using a Canadian OA-4831 system produced the AN/FPS-87 and AN/FPS-87A. The BADGE 412-L upgrade of the FPS-20A created the AN/FPS-82. A more major update was the MK-747, which added a new antenna from Raytheon, the Diplex Gating Unit (DGU), a bandpass filter and other modifications, to produce the AN/FPS-91 and 91A. The similar MK-748 applied to the -60 series resulted in the AN/FPS-64A, -65A, -66A and -67A. Canadian AN/FPS-87s were also converted, becoming AN/FPS-93 and 93A. These units were used with the SAGE system. The FPS-20 was widely used in Japan. They produced their own series of modifications, including a tunnel diode based amplifier and a separate receiver for the Airborne Instruments Laboratories system, producing the AN/FPS-20/20A JAPAN, or -J. The Indian Air Force used the FPS-20 with a new digital moving target indicator (MTI) system from Bendix to create the AN/FPS-100 and 100A. These systems were known as the "Blue Pearl", or Bendix Radar Processor BRP-150. These were remanufactured units with a new antenna, and included a new low-noise front-end amplifier. General Dynamics later produced a similar digital MTI system, the AN/FPS-113. Radar AN/FPS-20 adalah sebuah Radar Umum Surveillance digunakan oleh Komando Pertahanan Udara Angkatan Udara Amerika Serikat. Produksi AN/FPS-20 Surveillance Radar dimulai pada tahun 1956. Ini dual-modulator, stasiun tetap, sistem pengawasan umum, yang dikembangkan oleh RADC menjadi radar surveillance utama untuk daratan Amerika Serikat. Dilengkapi untuk operasi dual-channel dengan pemancar klystron, sistem ini memberikan kemampuan pengawasan jarak jauh.
dbp:prf
440
dbp:pulsewidth
4
dbp:rpm
3.3
prov:wasDerivedFrom
n18:FPS-20?oldid=1088105741&ns=0
dbo:wikiPageLength
7417
foaf:isPrimaryTopicOf
n18:FPS-20