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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. Vintage amateur radio - Wikipedia

    en.wikipedia.org/wiki/Vintage_amateur_radio

    The ARRL published "Vintage Radio", a collection of articles from QST magazine describing vintage equipment, restoration, and operation. [ 33 ] The Antique Wireless Association of Southern Africa is devoted to the "maintenance and preservation of our amateur heritage" for enthusiasts of older types of short wave radios and amateur equipment ...

  4. Radioteletype - Wikipedia

    en.wikipedia.org/wiki/Radioteletype

    Radioteletype tuning indicator Tuning indicator on cathode ray tube. Radioteletype (RTTY) is a telecommunications system consisting originally of two or more electromechanical teleprinters in different locations connected by radio rather than a wired link.

  5. Amateur radio - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio

    Download as PDF; Printable version; ... Radio Communication Handbook (10th ed.). ... The ARRL Handbook for Radio Communications 2010 ...

  6. International Amateur Radio Union - Wikipedia

    en.wikipedia.org/wiki/International_Amateur...

    Although most of their membership is located in other IARU regions, the American Radio Relay League and the Radio Society of Great Britain are full member societies of IARU Region 3. The ARRL represents amateur radio operators in American Samoa , Guam , the Northern Marianas , and other dependent territories in the Pacific Ocean .

  7. History of amateur radio - Wikipedia

    en.wikipedia.org/wiki/History_of_amateur_radio

    The history of amateur radio, dates from the dawn of radio communications, with published instructions for building simple wireless sets appearing at the beginning of the twentieth century. [1]

  8. Amateur radio frequency allocations - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_frequency...

    (ARRL 60 meter operations ) The primary (first priority) user of the channelled 60 meter band is the U.S. National Telecommunications and Information Administration (NTIA). Effective 5 March 2012 the FCC permits CW, USB, and certain digital modes on these frequencies by amateurs on a secondary basis.

  9. Radio silence - Wikipedia

    en.wikipedia.org/wiki/Radio_silence

    Download QR code; Print/export ... The Wilderness Protocol is now included in both the ARRL ARES Field Resources Manual [2] ... In January 1965, ...

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