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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.
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.
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
[24] [25] [26] Introduced in the year 2000, the radio was known for its "all-in-one" functionality. It can transmit on all amateur radio bands between 160 meters and 70 centimeters , with the exception of the 1.25 meters band, and the "X" model also has built-in 23 centimeters band capability option.
The robot included a Motorola 6808 processor, ultrasonic sensor, and optionally a manipulator arm; the complete robot could be purchased assembled for $2495 or a basic kit without the arm purchased for $999. This was the first in a popular series of Heathkit robot kits sold to educational and hobbyist users.
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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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