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  2. Amateur radio call signs - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_call_signs

    Some call sign block ranges are unassigned by the ITU, e.g. the 1AA–1ZZ and QAA-QZZ blocks. Any call sign used by an amateur in these unassigned block ranges usually had it assigned to them by a group with an unrecognized national claim. Unless otherwise noted, they have no value for DXCC awards, nor are they valid under UK license conditions ...

  3. Maidenhead Locator System - Wikipedia

    en.wikipedia.org/wiki/Maidenhead_Locator_System

    [Maidenhead] grid square for any location or amateur radio call sign "Generate a KML file that outlines a grid position". w8an.net. "Maidenhead locator". dev.unclassified.de. C# class to convert between geographic coordinates and Maidenhead locators, including distance calculation "View Maidenhead grid on Google Earth". earthpoint.us

  4. Call signs in North America - Wikipedia

    en.wikipedia.org/wiki/Call_signs_in_North_America

    Several other prefixes, including CG, CY-CZ, VA-VE, VG, and the XJ-XO range, are available, but are not used in broadcasting. Conventional radio and television stations almost exclusively use "C" call signs; with the exception of a few commercial radio stations in St. John's, Newfoundland and Labrador which existed prior to the admission of ...

  5. Call signs in Canada - Wikipedia

    en.wikipedia.org/wiki/Call_signs_in_Canada

    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).

  6. File:US Amateur callsign regions.svg - Wikipedia

    en.wikipedia.org/wiki/File:US_Amateur_callsign...

    Description: Map of amateur radio callsigns in the United States, showing 50 US States and populated territories. Date: 1 September 2010, 21:24 (UTC): Source

  7. ITU prefix - Wikipedia

    en.wikipedia.org/wiki/ITU_prefix

    A call sign can be any number of letters and numerals but each country must only use call signs that begin with the characters allocated for use in that country. With regard to the second and/or third letters in the prefixes in the list below, if the country in question is allocated all callsigns with A to Z in that position, then that country ...

  8. Amateur radio propagation beacon - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_propagation...

    An amateur radio propagation beacon is a radio beacon, whose purpose is the investigation of the propagation of radio signals. Most radio propagation beacons use amateur radio frequencies. They can be found on LF, MF, HF, VHF, UHF, and microwave frequencies. Microwave beacons are also used as signal sources to test and calibrate antennas and ...

  9. Amateur radio - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio

    Amateur radio licenses may also be granted to organizations or clubs. In some countries, hams were allowed to operate only club stations. [41] An amateur radio license is valid only in the country where it is issued or in another country that has a reciprocal licensing agreement with the issuing country. [42] [43]