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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.
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.
He is considered the Patron saint of Amateur radio operators. [17] Two radios in the ARC-5 series. Unit on the left is a BC-453-B, covering 190-550 kHz; the one on the right is a BC-454-E, covering 3-6 MHz. Both have been modified for Amateur Radio use by replacing the front connector with a small control panel.
William Ittner Orr (1919–2001) was an engineer, educator, communicator, and ham radio operator. [1] [2] [3] He was the American author of numerous amateur radio and radio engineering texts.
The Amateur radio R-S-T system signal report format currently in use was first developed in 1934. [citation needed] As early as 1943, the U.S and UK military published the first guidance that included the modern "Weak but readable", "Strong but distorted", and "Loud and clear" phrases. [citation needed]
W1AW is the flagship station for amateur radio operation within the United States. Using pre-established shortwave frequencies and Maxim's distinctive call sign (W1AW), this station transmits one-way voice and digital bulletins in addition to morse code training practice.
The origins of amateur radio can be traced to the late 19th century, but amateur radio as practised today began in the early 20th century. The First Annual Official Wireless Blue Book of the Wireless Association of America , produced in 1909, contains a list of amateur radio stations. [ 4 ]
Hallicrafters founder Bill Halligan and his personal SX-28 depicted in a 1944 magazine ad. In July 1940, the Hallicrafters Company announced the SX-28 "Super Skyrider", the result of a development effort by 12 staff engineers and analysis of more than 600 reports that included input from U.S. government engineers, commercial users, and amateur radio operators.
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