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Amateur radio or ham radio call signs are unique identifiers for about 9,100 licensed operators in the Middle East. Call signs are regulated internationally by the International Telegraph Union (ITU) and nationally by local government and international agencies in Israel, Jordan, Lebanon, Syria, The Palestine Authority, occupied territories and other nations or DXCC entities. Since callsign allocation from the ITU is administered by national political authorities and international mandates, it is a story of transition, compromise, and internationally unrecognized operation to follow the history of such allocations in the 20th century in this area.〔(Amateur Radio in and around Palestine )〕 ==Call sign blocks for telecommunication== The ITU has assigned countries in the Middle East the following call sign blocks for all radio communication, broadcasting or transmission:〔(International Telecommunication Union country call sign assignments )〕 The DXCC deleted entities list notes that for the British Protectorate prefix of ZC6 and the Palestine prefix of 4X1, only contacts made June 30, 1968, and before, count for Palestine as an entity. Contacts made July 1, 1968, and after, count as Israel (4X).〔(ARRL deleted entities list )〕 4W used to be a prefix for Yemen, but only contacts made May 21, 1990, and before, count for this entity. With the merger of North and South Yemen, only "7O" is used. However, amateur operation from this entity is extremely rare. While not directly related to call signs, the ITU further has divided all countries assigned amateur radio prefixes into three regions; the Middle East is located in ITU Region 1. It is assigned ITU Zone 39 with Egypt being mainly in ITU Zone 38 and Iran in ITU Zone 40, and CQ Zones 20 & 21 with Egypt mainly in CQ Zone 34. 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「Amateur radio call signs of the Middle East」の詳細全文を読む スポンサード リンク
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