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  2. Vintage amateur radio - Wikipedia

    en.wikipedia.org/wiki/Vintage_amateur_radio

    Vintage amateur radio is a subset of amateur radio hobby where enthusiasts collect, restore, preserve, build, and operate amateur radio equipment from bygone years, such as those using vacuum tube technology.

  3. Amateur radio homebrew - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_homebrew

    Homebrew is an amateur radio slang term for home-built, noncommercial radio equipment. [1] Design and construction of equipment from first principles is valued by amateur radio hobbyists, known as "hams", for educational value, and to allow experimentation and development of techniques or levels of performance not readily available as commercial products.

  4. Portable operation (amateur radio) - Wikipedia

    en.wikipedia.org/wiki/Portable_operation...

    Amateur radio operators take part in portable operations using radio equipment when traveling. "Portable" equipment indicates a configuration that allows for relatively rapid collection, transportation, and deployment of amateur radio gear. A portable station can be anything from a small QRP (Low Power) radio and antenna, to a large transceiver.

  5. AN/PRC-117 - Wikipedia

    en.wikipedia.org/wiki/AN/PRC-117

    A PRC-117 radio and SATCOM antenna. The AN/PRC-117F/G radio is currently in use with the United States Navy Seabee and EOD teams in their MRAP and JERRV vehicles. [2] The radio is also in use by the United States Marine Corps, [6] United States Army, [7] USSOCOM, [8] United States Coast Guard, United States Air Force, [9] Royal Air Force, [10] Dutch Army, Spanish Air Force, British Army ...

  6. List of projects published in Radio-Electronics magazine

    en.wikipedia.org/wiki/List_of_projects_published...

    Unicorn-1 robot: The first step on the road to radio control. James A. Gupton, Jr. 52/3: March 1981 Computer-Selectric interface: An easy way to use an IBM Selectric terminal/printer for output from your computer. E. G. Brooner: 52/4: April 1981 Unicorn-1 robot: Finishing up the conversion to radio control. James A. Gupton, Jr. 52/4: April 1981

  7. QRP operation - Wikipedia

    en.wikipedia.org/wiki/QRP_operation

    VOACAP simulation of propagation against distance, comparing effective radiations of 1 watt (top) and 99 Watts (bottom).. The practice of operating with low power was popularized as early as 1924, with a variety of reports, editorials and articles published in U.S. amateur radio magazines and journals that encouraged amateurs to lower power output, both for purposes of experimentation, and for ...

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  9. 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] Throughout its history, amateur radio enthusiasts have made significant contributions to science , engineering , industry , and social services .