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  2. American Radio Relay League - Wikipedia

    en.wikipedia.org/wiki/American_Radio_Relay_League

    The American Radio Relay League (ARRL) is the largest membership association of amateur radio enthusiasts in the United States. ARRL is a non-profit organization and was co-founded on April 6, 1914, by Hiram Percy Maxim and Clarence D. Tuska of Hartford, Connecticut .

  3. Field Day (amateur radio) - Wikipedia

    en.wikipedia.org/wiki/Field_Day_(amateur_radio)

    Field Day is an annual amateur radio contest, widely sponsored by IARU regions and member organizations, encouraging emergency communications preparedness [1] among amateur radio operators. In the United States, it is typically the largest single emergency preparedness exercise in the country, with over 30,000 operators participating each year.

  4. Maidenhead Locator System - Wikipedia

    en.wikipedia.org/wiki/Maidenhead_Locator_System

    ARRL World Grid Locator Atlas. Newington, CT: American Radio Relay League. 2007. Containing all 32,400 Maidenhead Locator Squares; IARU Locator of Europe. Potters Bar, UK: Radio Society of Great Britain. 1984. IARU Locator of Western Europe. Potters Bar, UK: Radio Society of Great Britain. 1985. (scale 1:2,000,000) ARRL Amateur Radio Map of ...

  5. QRP operation - Wikipedia

    en.wikipedia.org/wiki/QRP_operation

    [4] [7] Typical awards include the QRP ARCI club's "thousand-miles-per-watt" award, available to anyone presenting evidence of a qualifying contact. QRP ARCI also offers special awards for achieving the ARRL's Worked All States, Worked All Continents, and DX Century Club awards under QRP conditions. Other QRP clubs also offer similar versions ...

  6. National Traffic System - Wikipedia

    en.wikipedia.org/wiki/National_Traffic_System

    The NTS as it exists today was first outlined by George Hart, W1NJM (died 24 March 2013) in "New National Traffic Plan: ARRL Maps New Traffic Organization for All Amateurs" as part of the September 1949 issue of QST. While traffic passing between amateur radio operators was nothing new, Hart's system extended coverage of traffic capability in a ...

  7. Contact (amateur radio) - Wikipedia

    en.wikipedia.org/wiki/Contact_(amateur_radio)

    An All-Time New One (ATNO) [2] is an operator's contact with an amateur station that they have never worked before on any band or mode. [3] [4] Many amateurs will send QSL cards to stations they have worked. [5] Computer-based logging software, such as the American Radio Relay League's Logbook of the World, can also be used for logging contacts ...

  8. Amateur radio international operation - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio...

    Map of Canadian amateur radio prefixes/suffixes. Citizens of the United States or Canada may operate in the other country as a domestically licensed station, as if their license had been issued in said country, without the requirement of obtaining any license or permission from the other government. [15] [5]

  9. Logbook of The World - Wikipedia

    en.wikipedia.org/wiki/Logbook_of_The_World

    Logbook of the World (LoTW) is a web-accessed database provided by the American Radio Relay League (ARRL) to implement a contact verification service among amateur radio operators. Using LoTW, radio amateurs (hams) are able to claim and verify contacts (QSOs) made with other amateurs, generally for claiming credit for operating awards, such as ...