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Statements

Subject Item
dbr:SCR-270
rdf:type
yago:Whole100003553 yago:Instrument103574816 yago:WikicatWorldWarIIRadars yago:PhysicalEntity100001930 yago:Instrumentality103575240 yago:MeasuringInstrument103733925 yago:Radar104039848 yago:Object100002684 yago:Device103183080 yago:WikicatMilitaryRadioSystems yago:WikicatMilitaryRadarsOfTheUnitedStates yago:Artifact100021939 yago:System104377057
rdfs:label
SCR-270 SCR-270 SCR-270
rdfs:comment
The SCR-270 (Set Complete Radio model 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 December 7, 1941, attack on Pearl Harbor commenced. Le SCR–270 (Signal Corps Radio modèle 270) est un des tout premiers radars de veille lointaine. C'était le principal radar à longue portée utilisé à travers le monde par l'Armée de terre des États-Unis (US Army) au cours de la Seconde Guerre mondiale. On l'a surnommé le « Radar de Pearl Harbor » car c'est un SCR–270 qui a détecté la flotte aérienne japonaise une heure et demie avant l’attaque de Pearl Harbor du 7 décembre 1941 mais dont l’information n’a pas été prise en compte par le commandement américain. SCR-270 (Signal Corps Radio № 270) — основной радиолокатор дальнего обнаружения армии США периода Второй мировой войны. Одной из радиолокационных станций данного типа были заблаговременно обнаружены самолёты Японской империи при нападении на Пёрл-Харбор.
dbp:name
-270.0
foaf:depiction
n9:SCR-270-set-up.jpg n9:Opana_Radar_Original_Plot_Dec_7,_1941.jpg n9:Opana_SCR-270_radar_display_Dec_7,_1941.jpeg n9:Opana-Radar-Station.png n9:SCR-271-D-600.jpg n9:SCR-270_(Okinawa,_AWS-6_-_crop).jpg n9:SCR-270_on_Guadalcanal_1942.jpg n9:SCR-270-in-k-30-truck-300.jpg n9:BC-403_Oscilloscope_TM-11-1510.jpeg
dcterms:subject
dbc:World_War_II_radars dbc:Military_radars_of_the_United_States_Marine_Corps dbc:Military_equipment_introduced_from_1940_to_1944 dbc:Military_radars_of_the_United_States dbc:World_War_II_American_electronics
dbo:wikiPageID
965462
dbo:wikiPageRevisionID
1112370262
dbo:wikiPageWikiLink
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dbo:thumbnail
n9:SCR-270-set-up.jpg?width=300
dbp:caption
SCR-270: Similar to the model that detected the attacking Pearl Harbor planes . The scale for reading the direction the antenna is pointing to can be seen at the base.
dbp:country
dbr:United_States
dbp:diameter
8
dbp:frequency
106.0
dbp:power
100
dbp:type
2
dbo:abstract
The SCR-270 (Set Complete Radio model 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 December 7, 1941, attack on Pearl Harbor commenced. Two versions were produced, the mobile SCR-270, and the fixed SCR-271 which used the same electronics but used an antenna with somewhat greater resolution. An upgraded version, the , was also produced, but saw little use. The -270 versions were eventually replaced by newer microwave units based on cavity magnetron that was introduced to the US during the Tizard Mission. The only early warning system of the sort to see action in World War II was the AN/CPS-1, which was available in mid-1944, in time for D-day. SCR-270 (Signal Corps Radio № 270) — основной радиолокатор дальнего обнаружения армии США периода Второй мировой войны. Одной из радиолокационных станций данного типа были заблаговременно обнаружены самолёты Японской империи при нападении на Пёрл-Харбор. Le SCR–270 (Signal Corps Radio modèle 270) est un des tout premiers radars de veille lointaine. C'était le principal radar à longue portée utilisé à travers le monde par l'Armée de terre des États-Unis (US Army) au cours de la Seconde Guerre mondiale. On l'a surnommé le « Radar de Pearl Harbor » car c'est un SCR–270 qui a détecté la flotte aérienne japonaise une heure et demie avant l’attaque de Pearl Harbor du 7 décembre 1941 mais dont l’information n’a pas été prise en compte par le commandement américain. Deux versions du système ont été produites, une mobile (SRC–270), et une fixe (SRC–271) dont l'équipement électronique était le même, mais dont les antennes permettaient une meilleure résolution. Une version améliorée, le SCR–289, a également vu le jour. Toutes les versions 270 ont été équipées par la suite de systèmes à micro–onde après que le magnétron à cavité fut introduit aux États-Unis grâce à la mission Tizard. Le seul autre système radar de veille lointaine opérationnel était le AN/CPS-11 qui n'a été disponible qu'à la fin de l'année 1944.
dbp:azimuth
0
dbp:introdate
1940
dbp:precision
2
dbp:prf
621.0
dbp:pulsewidth
10
dbp:rpm
1
gold:hypernym
dbr:Radars
prov:wasDerivedFrom
wikipedia-en:SCR-270?oldid=1112370262&ns=0
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wikipedia-en:SCR-270