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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.
The Homebrew Computer Club was an early computer hobbyist group in Menlo Park, California, which met from March 1975 to December 1986. The club had an influential role in the development of the microcomputer revolution and the rise of that aspect of the Silicon Valley information technology industrial complex.
Yagi demonstrated a proof of concept, but the engineering problems proved to be more onerous than conventional systems. [18] Yagi published the first English-language reference on the antenna in a 1928 survey article on short wave research in Japan and it came to be associated with his name.
Federmeyer used the term homebrew to describe hobbyist-driven development, inspired by the California Homebrew Computer Club of the 1970s. [14] After designing the cartridge for his own use, Federmeyer advertised it on Usenet, [15] followed by an unlicensed version of Tetris. [13] Since then, over 100 games have been released, [16] many ...
However, a Yagi with the same number of elements as a log-periodic would have far higher gain, as all of those elements are improving the gain of a single driven element. In its use as a television antenna, it was common to combine a log-periodic design for VHF with a Yagi for UHF, with both halves being roughly equal in size.
As with the Moxon antenna, the design omits the directors found in a Yagi-Uda. Its antenna gain is between 5dBi and 6dBi, the forward/reverse attenuation is up to 20 dB. The hexbeam consists of six arms of non-conductive materials such as fiberglass or plastic pipes, and insulated metallic wire is used to form the elements.