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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 .
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 ...
ARRL World Grid Locator Atlas. Newington, CT: American Radio Relay League. 2007. Containing all 32,400 Maidenhead Locator Squares; IARU Locator of Europe. Potters Bar, UK: Radio Society of Great Britain. 1984. IARU Locator of Western Europe. Potters Bar, UK: Radio Society of Great Britain. 1985. (scale 1:2,000,000) ARRL Amateur Radio Map of ...
Many amateurs also enjoy setting up and contacting special event stations. Set up to commemorate special occurrences, they often issue distinctive QSLs or certificates. . Some use unusual prefixes, such as the call signs with "96" that amateurs in the US State of Georgia could use during the 1996 Atlanta Olympics, [1] or the OO prefix used by Belgian amateurs in 2005 to commemorate their ...
The Associazione Radioamatori Italiani (A.R.I.), holds its Field Days with the Region 1 schedule: CW: First full weekend of June from Saturday 15:00 UTC to Sunday 15:00 UTC (June 4–5, 2022). SSB: First full weekend of September from Saturday 13:00 UTC to Sunday 13:00 UTC (September 3–4, 2022).
Although the Amateur Radio Emergency Service is a program (and trademark) of the American Radio Relay League (ARRL) in the U.S., the structure is more supportive than directive in nature, providing mostly for mutual aid in the event of large-scale emergencies. As long as local units are operating in the best interests of Amateur Radio in ...
Research by amateur operators has founded new industries, [5] built economies, [6] empowered nations, [7] and saved lives in times of emergency. [ 8 ] [ 9 ] Ham radio can also be used in the classroom to teach English, map skills, geography, math, science, and computer skills.
IARU Region 1 is encouraging individual beacons to move to 50.4 MHz to 50.5 MHz. [4] [5] In the United States, the Federal Communications Commission (FCC) only permits unattended 6-meter beacon stations to operate between 50.060 and 50.080 MHz. [6] Amateur beacons at 50 MHz have also been used as signal sources for academic propagation research [7]