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International Radiotelegraph Convention (1912) : ウィキペディア英語版 | International Radiotelegraph Convention (1912) The International Radiotelegraph Convention (1912) established international callsigns, replacing the three letter callsigns prevalent then. Major world powers were given single prefixes such as N/K/W (United States), A (Germany), F (France), B (Great Britain). British colonies were given the call signs starting with V.〔http://earlyradiohistory.us/1913call.htm〕 The convention was signed at the International Radiotelegraph Conference in London on July 5, 1912.〔http://www.itu.int/en/history/Pages/RadioConferences.aspx?conf=37&dms=S0201000012〕 ==See also==
*Global Communications Conference
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「International Radiotelegraph Convention (1912)」の詳細全文を読む
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