Marcus Island LORAN-C transmitter
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Marcus Island LORAN-C transmitter, or Minami Torishima LORAN-C transmitter, is a former LORAN-C transmitter on Minami-Tori-shima (Marcus Island) in Ogasawara, Tokyo, Japan at (Script error: No such module "Coordinates".). Until 1993 it was part of Grid 9970 and used a transmission power of 4000 kilowatts, which was more than the most powerful broadcasting stations ever used.
Until 1985 Marcus Island LORAN-C transmitter had a Script error: No such module "convert". tall guyed mast radiator as an antenna, which was built in 1964. In 1985/86 this tower was replaced by a Script error: No such module "convert". tall tower.[1][2]
In October 1993 the authority over the transmitter was transferred from the United States Coast Guard to the Japan Coast Guard. In 2000 the tower of the station was again dismantled and replaced by a new one with a height of 213 meters.
Marcus Island LORAN-C transmitter was the X-Ray secondary station of the North West Pacific LORAN-C Chain GRI 8930. Its transmission power was reduced to 1100 kilowatts.
On December 1, 2009, the station was abolished due to a decline in users.[3] The mast has been demolished.
See also
References
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External links
- Excel-File with information about LORAN-C transmitters
- Template:Webarchive
- Building 56828
- Building 57079
- Building 57185
- Minami Torishima LORAN-C transmission mast (1964) at StructuraeTemplate:EditAtWikidataTemplate:WikidataCheck
- Minami Torishima LORAN-C transmission mast (1986) at StructuraeTemplate:EditAtWikidataTemplate:WikidataCheck
- Minami Torishima LORAN-C transmission mast (1993) at StructuraeTemplate:EditAtWikidataTemplate:WikidataCheck