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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 .
Logbook of the World (LoTW) is a web-accessed database provided by the American Radio Relay League (ARRL) to implement a contact verification service among amateur radio operators. Using LoTW, radio amateurs (hams) are able to claim and verify contacts (QSOs) made with other amateurs, generally for claiming credit for operating awards, such as ...
Amateur radio contests on VHF and UHF are often scored based on the distance of contacts, typically 1 point per kilometre, [3] so there is a need for amateurs to exchange their locations over the air. To facilitate this, following the growth of the sport in the 1950s, the German QRA locator system was adopted in 1959. [2]
The NTS as it exists today was first outlined by George Hart, W1NJM (died 24 March 2013) in "New National Traffic Plan: ARRL Maps New Traffic Organization for All Amateurs" as part of the September 1949 issue of QST. While traffic passing between amateur radio operators was nothing new, Hart's system extended coverage of traffic capability in a ...
An All-Time New One (ATNO) [2] is an operator's contact with an amateur station that they have never worked before on any band or mode. [3] [4] Many amateurs will send QSL cards to stations they have worked. [5] Computer-based logging software, such as the American Radio Relay League's Logbook of the World, can also be used for logging contacts ...
For example, the peak envelope power limits for the highest available license classes in a few selected countries are: 2.25 kW in Canada; [67] 1.5 kW in the United States; 1.0 kW in Belgium, Luxembourg, Switzerland, South Africa and New Zealand; 750 W in Germany; 500 W in Italy; 400 W in Australia, India, and the United Kingdom; and 150 W in Oman.
In addition, all such data are typically ingested into the APRS Internet System (APRS-IS) via an Internet-connected receiver (IGate) and distributed globally for ubiquitous and immediate access. [2] Data shared via radio or Internet are collected by all users and can be combined with external map data to build a shared live view.
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 ...