An ARRL Numbered Radiogram is a brevity code used in composing
ARRL Radiogram
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), t ...
s during times of radio congestion.
The code is used to transmit standard messages, sometimes with customized text, very quickly by experienced ARRL
National Traffic System
The National Traffic System (NTS) is an organized network of amateur radio operators sponsored by the American Radio Relay League for the purpose of relaying messages throughout the U.S. and Canada.
During normal times, these messages are rout ...
(NTS) message traffic handlers.
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
Amateur radio, also known as ham radio, is the use of the radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communic ...
National Traffic System, they retain this format and are only expanded to their plain-English meaning when delivered by a Ham. For example, "ARL FORTY-SIX" would be typed in a letter or spoken over the phone to the addressee as "Greetings on your birthday and best wishes for many more to come." For those codes where customized text can be added, the customized text is added immediately following the number code word. For example, "ARL SIXTY TWO CHRISTMAS" is expanded upon delivery outside of the NTS System as "Greetings and best wishes to you for a pleasant Christmas holiday season.".
See also
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Amateur radio
Amateur radio, also known as ham radio, is the use of the radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communic ...
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American Radio Relay League
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 ...
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ARRL Radiogram
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), t ...
*
National Traffic System
The National Traffic System (NTS) is an organized network of amateur radio operators sponsored by the American Radio Relay League for the purpose of relaying messages throughout the U.S. and Canada.
During normal times, these messages are rout ...
References
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Brevity codes
Amateur radio