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(See discussion on the D9K call sign issued by Korea above – 'when 2 characters are needed'.) PPNS, 2×1 call sign prefix can be letter-letter, letter-digit, or digit-letter. A call sign composed of a letter, two digits, and one-letter is always a 2×1 call sign, meaning it has a letter-digit prefix and a single-letter suffix.
At the conference, standard international amateur radio bands of 80/75, 40, 20 and 10 meters and radio callsign prefixes were established by treaty. In 1933 Robert Moore, W6DEI, begins single-sideband voice experiments on 75 meter lower sideband. By 1934, there were several ham stations on the air using single-sideband. [15]
CQ ham radio Japan: Japanese Monthly 1946–present Five Nine Japan: Japanese Monthly Radio ZS South Africa: English Monthly Unknown old man Switzerland: German, Italian, French Monthly 1932–2007 HBradio Switzerland: German, Italian, French Monthly 2008–present Practical Wireless United Kingdom: English Monthly 1932–present RadCom United ...
The call sign format for radio and television call signs follows a number of conventions. All call signs begin with a prefix assigned by the International Telecommunication Union (ITU). For example, the United States has been assigned the following prefixes: AAA–ALZ, K, N, W. For a complete list, see international call sign allocations.
Call sign information for U.S. stations are set out in chapter I of the FCC rules, Title 47 (Telecommunication) of the Code of Federal Regulations (C.F.R.): 47 CFR 2.302: General overview of call sign assignments, including a detailed summary of standards and practices for various license classes.
Call signs in Canada are official identifiers issued to the country's radio and television stations. Assignments for broadcasting stations are made by the Canadian Radio-television and Telecommunications Commission (CRTC), while amateur stations receive their call signs from Innovation, Science and Economic Development Canada (previously Industry Canada).
Amateur radio or ham radio call signs are unique identifiers for the 19,500 licensed operators in Australia. Call signs are regulated internationally by the ITU as well as nationally by the Australian Communications and Media Authority (ACMA) which is Australia's regulator for broadcasting, administering spectrum use through the provisions of ...
The following call signs and frequencies of solitary beacons and markers have been reported recently (September 2007 to September 2009) in Numbers&Oddities newsletter, [8] Utility DX Forum [9] and ENIGMA-2000: [10]