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• Chain_Home abstract "Chain Home, or CH for short, was the codename for the ring of coastal Early Warning radar stations built by the British before and during the Second World War. It was one of the first practical radar systems, and the main component of the world's first integrated air defence system, the Dowding system. Chain Home radars stretched across the shoreline of the British Isles, looking outward, offering almost continuous coverage of the over-water areas offshore. CH systems would often detect larger formations while still over France, offering invaluable early warning of an impending raid. The presence of radar strongly swung the balance of power in the direction of defence, it was no longer the case that "the bomber will always get through".The radar sets, otherwise known as AMES Type 1 (Air Ministry Experimental Station), consisted of fixed cable array antennae slung between three or four 360 ft (110 m) steel towers. Reception was on separate towers that located the return signal within about 5 degrees using radio direction finding. The radar transmitted on the upper end of the HF 12 m frequency band between 22–25 MHz depending on operational requirements. Although the long wavelength had numerous practical problems, it was easy to build out of existing widely-available components, and was strongly reflected from propellers. Robert Watson-Watt was aware of the drawbacks, but was adamant in delivering a "good enough" system immediately, as opposed to a better system never.The installations were known as 'stations' and were designed to provide long-range detection of aircraft.CH was not able to detect aircraft at lower altitudes and thus was used in conjunction with the high-VHF band (200 MHz frequency) Chain Home Low system, or AMES Type 2, which could detect aircraft flying at minimum altitude level of 500 ft (150 m). This was further refined by the addition of Chain Home Extra Low, or AMES Type 13 / 14, which gave cover down to 50 ft (15 m) but at short ranges of only approximately 30 miles (50 km). CHEL was the first RAF centimetric radar system working on a 3 GHz frequency of 10 cm wavelength — the same frequency as the original form of the pioneering H2S bomb-aiming airborne radar — rather than the 12 m HF band Type 1.".
• Chain_Home thumbnail Chain_home_coverage.jpg?width=300.
• Chain_Home wikiPageExternalLink deflating-british-radar-myths-of-world-war-ii.html.
• Chain_Home wikiPageExternalLink early-radar-memories.html.
• Chain_Home wikiPageExternalLink chain_home_extra_low_map.html.
• Chain_Home wikiPageExternalLink chain_home_low_map.html.
• Chain_Home wikiPageExternalLink chain_home_map.html.
• Chain_Home wikiPageExternalLink a7907916.shtml.
• Chain_Home wikiPageExternalLink www.chainhome.org.uk.
• Chain_Home wikiPageExternalLink hob.aspx?hob_id=1306901.
• Chain_Home wikiPageExternalLink hob.aspx?hob_id=1309533.
• Chain_Home wikiPageExternalLink hob.aspx?hob_id=1377189.
• Chain_Home wikiPageExternalLink hob.aspx?hob_id=1412472.
• Chain_Home wikiPageExternalLink hob.aspx?hob_id=1476520.
• Chain_Home wikiPageExternalLink hob.aspx?hob_id=1476551.
• Chain_Home wikiPageExternalLink hob.aspx?hob_id=1476819.
• Chain_Home wikiPageExternalLink hob.aspx?hob_id=1476863.
• Chain_Home wikiPageExternalLink www.purbeckradar.org.uk.
• Chain_Home wikiPageExternalLink www.radarmuseum.co.uk.
• Chain_Home wikiPageExternalLink chainhome.htm.
• Chain_Home wikiPageExternalLink photos3.htm.
• Chain_Home wikiPageExternalLink index4.shtml.
• Chain_Home wikiPageID "382754".
• Chain_Home wikiPageRevisionID "605196117".
• Chain_Home hasPhotoCollection Chain_Home.
• Chain_Home image "Type 1 Chain Home Map shows modern aerial photographs of the locations of AMES Type 1 Chain Home.".
• Chain_Home image "Type 2 Chain Home Extra Low Map shows modern aerial photographs of the locations of Chain Home Extra Low.".
• Chain_Home image "Type 2 Chain Home Low Map shows modern aerial photographs of the locations of AMES Type 2 Chain Home Low.".
• Chain_Home width "180".
• Chain_Home subject Category:Battle_of_Britain.
• Chain_Home subject Category:Ground_radars.
• Chain_Home subject Category:Military_history_of_the_United_Kingdom_during_World_War_II.
• Chain_Home subject Category:Radar_networks.
• Chain_Home subject Category:World_War_II_British_electronics.
• Chain_Home subject Category:World_War_II_radars.
• Chain_Home type Artifact100021939.
• Chain_Home type Device103183080.
• Chain_Home type GroundRadars.
• Chain_Home type Instrument103574816.
• Chain_Home type Instrumentality103575240.
• Chain_Home type MeasuringInstrument103733925.
• Chain_Home type Object100002684.
• Chain_Home type PhysicalEntity100001930.
• Chain_Home type Radar104039848.
• Chain_Home type Whole100003553.
• Chain_Home type WorldWarIIRadars.
• Chain_Home comment "Chain Home, or CH for short, was the codename for the ring of coastal Early Warning radar stations built by the British before and during the Second World War. It was one of the first practical radar systems, and the main component of the world's first integrated air defence system, the Dowding system. Chain Home radars stretched across the shoreline of the British Isles, looking outward, offering almost continuous coverage of the over-water areas offshore.".
• Chain_Home label "Chain Home".
• Chain_Home label "Chain Home".
• Chain_Home label "Chain Home".
• Chain_Home label "Chain Home".
• Chain_Home label "Chain Home".
• Chain_Home label "Chain Home".
• Chain_Home label "Chain home".
• Chain_Home sameAs Chain_Home.
• Chain_Home sameAs Chain_Home.
• Chain_Home sameAs Chain_home.
• Chain_Home sameAs Chain_Home.
• Chain_Home sameAs Chain_Home.
• Chain_Home sameAs m.021tm7.
• Chain_Home sameAs Q1059083.
• Chain_Home sameAs Q1059083.
• Chain_Home sameAs Chain_Home.
• Chain_Home wasDerivedFrom Chain_Home?oldid=605196117.
• Chain_Home depiction Chain_home_coverage.jpg.
• Chain_Home isPrimaryTopicOf Chain_Home.