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  2. Amateur radio - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio

    Amateur radio, also known as ham radio, is the use of the radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communications. [1] The term "amateur" is used to specify "a duly authorized person interested in radioelectric ...

  3. History of amateur radio - Wikipedia

    en.wikipedia.org/wiki/History_of_amateur_radio

    In the United States, Congress ordered all amateur radio operators to cease operation and even dismantle their equipment. These restrictions were lifted after World War I ended, and the amateur radio service restarted on October 1, 1919. Between the wars Early homebrew amateur radio transmitter German amateur radio and ski enthusiast in 1924

  4. 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. Popular modes of operation include speaking over amplitude modulation (AM), and communicating using Morse code through continuous wave ...

  5. R. L. Drake Company - Wikipedia

    en.wikipedia.org/wiki/R._L._Drake_Company

    Website. www.rldrake.com. Drake TR-4, W-4, MS-4 circa 1971. The R. L. Drake Company is a manufacturer of electronic communications equipment located in Springboro, Ohio. It is also known for its line of equipment for amateur radio and shortwave listening, built in the 1950s through the 1980s. The company operates as a separate entity owned by ...

  6. Amateur radio station - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_station

    An amateur radio station established in a permanent structure with equipment that is not intended for portable operation is referred to as a fixed station. This is the most common form of amateur radio station, and can be found in homes, schools, and some public buildings.

  7. List of amateur radio transceivers - Wikipedia

    en.wikipedia.org/wiki/List_of_amateur_radio...

    Kenwood TS-820S. The Kenwood TS-820S is a model of amateur radio transceiver produced primarily by the Kenwood Corporation from the late 1970s into the 1980s; some were produced by Trio Electronics before Kenwood's 1986 name change). The transceiver's predecessor was the TS-520, which began production a year earlier.

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