Marcus Island LORAN-C transmitter - Wikipedia

Until 1985 Marcus Island LORAN-C transmitter had a 411.48-meter (1,350.0 ft) tall guyed mast radiator as an antenna, which was built in 1964. In 1985/86 the ... MarcusIslandLORAN-Ctransmitter FromWikipedia,thefreeencyclopedia Jumptonavigation Jumptosearch Minami-Tori-shima(MarcusIsland)overviewwithtransmitter MarcusIslandLORAN-CMast(1st)GeneralinformationStatusDismantledTypeMastradiatorinsulatedagainstgroundLocationMinami-Tori-shima(MarcusIsland),JapanCompleted1963Destroyed1985Height411.48 m(1,350.0 ft) MarcusIslandLORAN-CMast(2nd)GeneralinformationStatusDismantledTypeMastradiatorinsulatedagainstgroundLocationMinami-Tori-shima(MarcusIsland),JapanCompleted1986Destroyed2000Height213.4 m(700 ft) MarcusIslandLORAN-CMast(3rd)GeneralinformationStatusDismantledTypeMastradiatorinsulatedagainstgroundLocationMinami-Tori-shima(MarcusIsland),JapanCompleted2000Destroyed2010Height213 m(698.82 ft)DesignandconstructionMaincontractorJapanSelf-DefenseForces MarcusIslandLORAN-Ctransmitter,orMinamiTorishimaLORAN-Ctransmitter,isaformerLORAN-CtransmitteronMinami-Tori-shima(MarcusIsland)inOgasawara,Tokyo,Japanat(24°17′8″N153°58′54″E/24.28556°N153.98167°E/24.28556;153.98167Coordinates:24°17′8″N153°58′54″E/24.28556°N153.98167°E/24.28556;153.98167).Until1993itwaspartofGrid9970andusedatransmissionpowerof4000kilowatts,whichwasmorethanthemostpowerfulbroadcastingstationseverused. Until1985MarcusIslandLORAN-Ctransmitterhada411.48-meter(1,350.0 ft)tallguyedmastradiatorasanantenna,whichwasbuiltin1964.In1985/86the411.48-metretowerwasreplacedbya213.4 m-tall(700 ft)talltower. InOctober1993theauthorityoverthetransmitterwastransferredfromtheUnitedStatesCoastGuardtotheJapanCoastGuard.In2000thetowerofthestationwasagaindismantledandreplacedbyanewonewithaheightof213meters. MarcusIslandLORAN-CtransmitterwastheX-RaysecondarystationoftheNorthWestPacificLORAN-CChainGRI8930.Itstransmissionpowerwasreducedto1100kilowatts. OnDecember1,2009,thestationwasabolishedduetoadeclineinusers.[1]Themasthasbeendemolished. Seealso[edit] Listofmasts References[edit] ^"北西太平洋ロランCチェーンの縮小（南鳥島局の廃止）について"(PDF)(inJapanese).JapaneseCoastGuard.2009-06-01.Retrieved2016-10-08. Externallinks[edit] Excel-FilewithinformationaboutLORAN-Ctransmitters ImageGalleryattheWaybackMachine(archivedDecember13,2010) Building56828 Building57079 Building57185 MinamiTorishimaLORAN-Ctransmissionmast(1964)atStructurae MinamiTorishimaLORAN-Ctransmissionmast(1986)atStructurae MinamiTorishimaLORAN-Ctransmissionmast(1993)atStructurae Retrievedfrom"https://en.wikipedia.org/w/index.php?title=Marcus_Island_LORAN-C_transmitter&oldid=1032928710" Categories:LORAN-CtransmittersinJapanBuildingsandstructuresinTokyoHiddencategories:CS1Japanese-languagesources(ja)InfoboxmapframewithoutOSMrelationIDonWikidataCoordinatesonWikidataWebarchivetemplatewaybacklinksStructuraeIDdifferentfromWikidataPagesusingtheKartographerextension Navigationmenu Personaltools NotloggedinTalkContributionsCreateaccountLogin Namespaces ArticleTalk English Views ReadEditViewhistory More Search Navigation MainpageContentsCurrenteventsRandomarticleAboutWikipediaContactusDonate Contribute HelpLearntoeditCommunityportalRecentchangesUploadfile Tools WhatlinkshereRelatedchangesUploadfileSpecialpagesPermanentlinkPageinformationCitethispageWikidataitem Print/export DownloadasPDFPrintableversion Languages Deutsch日本語 Editlinks