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Chain Home

Chain Home, or CH for short, was the codename for the ring of coastal early warning radar stations built by the Royal Air Force (RAF) before and during the Second World War to detect and track aircraft. Initially known as RDF, and given the official name Air Ministry Experimental Station Type 1 (AMES Type 1) in 1940, the radar units were also known as…

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Azimuth
150º
Beamwidth
150º
Country of origin
United Kingdom
Designer
AMES
Elevation
2.5 to 40º
Frequency
Between 20 and 55 MHz

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Overview

Development

Description

Detection, jamming and counter-jamming

Comparison with other systems

Bibliography

  • ISBN ISBN (identifier)
  • OCLC OCLC (identifier)

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Map overview Semantic statistics

Chain Home

Nodes211
Edges210
Triples212
Avg. degree1.99
Density0.009479
Components1

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Chain Home

Top relations

related to Further reading · 47
Chain Home → Aircraft, Airwaves, Anne, Batt, Bristol, Britain's Shield, Chain Home Radar, Colin, David, Defeat, England, GEC Review, Hawkhead Publishing, Institute, ISBN, ISSN, Latham, London, Louis, Luftwaffe
related to External links · 37
Chain Home → April, Bawdsey Chain Home Radar, Bawdsey Chain Home Station, BBCGreat Baddow Chain Home, Britain's, Canewdon Chain Home Station, Darsham Deprecated, Dunkirk Chain Home Station, Early Radar Memories Archived, Fighter Command Archived, GEC Review, Great Bromley Chain Home, Group, High Street, High Street Chain Home, Historic England, Jean Semple, Mast, November, October
related to CH today · 22
Chain Home → AMES, BAE Systems, Dover, English Heritage, Essex, Grade II, Great Baddow, It, Kent, Lincolnshire, Linesman/Mediator, Marconi Research Centre, North Yorkshire, One, RAF Canewdon, RAF Stenigot, ROTOR, RRH Staxton Wold, Some, Swingate
related to Early detection · 22
Chain Home → August, Battle, Britain's North Sea, Deutsche Versuchsanstalt, During, DVL, English Channel, France, From May, German, German Aeronautic Research Institute, Germans, Handel, In, June, Luftfahrt, LZ130, LZ130 Graf Zeppelin II, Other, Portsmouth
related to Upgrades · 17
Chain Home → AMES Type, An, Both, By, CH, Fruit Machine, GCI, Identification, IFF, The, The Fruit Machine, To, Type, UK, When, Whereas CH, With
related to ROTOR · 13
Chain Home → AMES Type, CH, Chain Home's, However, If, In, It, ROTOR, Soviet Union, Specific, The British, The GCI, These
related to Battle of Britain · 11
Chain Home → August, Because, Dover CH, During, Isle, Kent, Luftwaffe, On, Though, Ventnor, Wight
related to Comparison with other systems · 10
Chain Home → Additionally, CH, Direction, Freya, German, However, In, MHz, Modern, This
related to Mechanical layout · 9
Chain Home → Between, Located, One, The, The CH, They, Three, WAAF, Women's Auxiliary Air Force
see also · 6
Chain Home → Air Defence Radar MuseumCastles, BeamsBritish, History, LowCivilian Technical CorpsGround-controlled, Sky, World War IIChain Home

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Important terminology

system radar could would ch chain signal radio home station aircraft receiver transmitter range time used stations systems war signals

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Chain HomeAzimuth150º1.00infobox
Chain HomeBeamwidth150º1.00infobox
Chain HomeCountry of originUnited Kingdom1.00infobox
Chain HomeDesignerAMES1.00infobox
Chain HomeElevation2.5 to 40º1.00infobox
Chain HomeFrequencyBetween 20 and 55 MHz1.00infobox
Chain HomeIntroduced19381.00infobox
Chain HomeManufacturerMetropolitan-Vickers, AC Cossor1.00infobox
Chain HomeOther namesRDF, RDF1, AMES Type 1, AMES Type 3, AMES Type 91.00infobox
Chain HomePower100 kW to 1 MW depending on version1.00infobox
Chain HomePrecision8 km (5.0 mi) or better (1 kilometre (0.62 mi) typical) in range, ±12º in azimuth (typically less)1.00infobox
Chain HomePRF25 pps1.00infobox
Chain HomePulsewidth6 to 25 µs1.00infobox
Chain HomeRange160 km (99 mi)1.00infobox
Chain HomeTypeEarly warning1.00infobox

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