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An ARRL radiogram is an instance of formal written message traffic routed by a network of amateur radio operators through traffic nets, called the National Traffic System (NTS). It is a plaintext message, along with relevant metadata (headers), that is placed into a traffic net by an amateur radio operator.
In use, ARRL Numbered Radiograms are messages encoded as one or two numbers. The numbers are always written down as words, and are always preceded by the procedure word "ARL". Throughout their transit in the Amateur radio National Traffic System, they retain this format and are only expanded to their plain-English meaning when delivered by a Ham.
ARRL Radiogram traffic typically begins and ends its journey at local nets, often through nearby repeaters. Local nets typically involve city or county-wide coverage on VHF (2-metre band) or UHF (70 cm band), and although the ARRL does not endorse a single mode for traffic passing, messages are typically relayed by voice at this level. [4]
An ARRL radiogram is an instance of formal written message traffic routed by a network of amateur radio operators through traffic nets, called the National Traffic System (NTS). It is a plaintext message, along with relevant metadata (headers), that is placed into a traffic net by an amateur radio operator.
An amateur radio net, or simply ham net, is an "on-the-air" gathering of amateur radio operators.Most nets convene on a regular schedule and specific frequency, and are organized for a particular purpose, such as relaying messages, discussing a common topic of interest, in severe weather (for example, during a Skywarn activation), emergencies, or simply as a regular gathering of friends for ...
Q code, initially developed for commercial radiotelegraph communication, later adopted by other radio services, especially amateur radio. Used since circa 1909. Used since circa 1909. QN Signals , published by the ARRL and used by Amateur radio operators to assist in the transmission of ARRL Radiograms in the National Traffic System .
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.
For the special purpose of exchanging ARRL Radiograms during National Traffic System nets, the following prosigns and signals can be used, most of which are an exact match with ITU-R and Combined Communications Electronics Board (military) standards; a few have no equivalent in any other definition of Morse code procedure signals or abbreviations.