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Portishead Radio
Portishead Radio (callsign GKA) was a radio station in England that provided worldwide s and long-range aeronautical communications from 1928 until 2000. It was the world's largest and busiest radiotelephony station. In 1974, there were 154 radio operators who handled over 20 million words per year.〔(【引用サイトリンク】 date=2001-04-06 )〕
==1920–1939==
The station's control centre, which was based at Highbridge, near Burnham-on-Sea, opened in July 1928. It was constructed by Marconi Wireless Telegraph Company and operated by the General Post Office (GPO). Following the privatisation of the post office in 1981, the station was operated by British Telecommunications PLC (now known as BT Group PLC).
The main transmitting station, which was remotely operated, originally consisted of a large array of radio masts at nearby Portishead Downs; it was replaced by a single radio mast at Clevedon. It was used until 1972. Various other remotely operated transmitting stations, including Devizes, Rugby, Leafield, Chipping Ongar, and Dorchester, were also used.
By 1936, the station had a staff of 60 radio officers who handled over 3 million words of radio traffic per year.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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