Operating signals are a type of
brevity code
Brevity codes are used in amateur radio, maritime, aviation and military communications. The codes are designed to convey complex information with a few words or codes. Some terms are classified to the public.
List of brevity codes
* ACP-131 A ...
used in operational communication among radio and telegraph operators. For example:
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Prosigns for Morse code
Procedural signs or prosigns are shorthand signals used in Morse code radio telegraphy procedure, for the purpose of simplifying and standardizing radio communication protocol. They are separate from Morse code abbreviations, which consist mainl ...
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92 Code: telegraph brevity codes
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Q code: initially developed for commercial radiotelegraph communication and adopted by other radio services
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QN Signals: published by the
ARRL
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 ...
and used in
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 communi ...
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R code and S Code: published by the British Post Office for coastal wireless stations and ships
* X code: used by European military services in wireless telegraphy
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Z code: used in early radiotelegraph communication
See also
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Brevity code
Brevity codes are used in amateur radio, maritime, aviation and military communications. The codes are designed to convey complex information with a few words or codes. Some terms are classified to the public.
List of brevity codes
* ACP-131 A ...
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SINPO code - code used to describe the quality of radio transmissions, especially in reception reports written by shortwave listeners
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R-S-T system- information about the quality of a radio signal being received. Used by amateur radio operators, shortwave listeners.
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Morse code abbreviations
Morse code abbreviations are used to speed up Morse communications by foreshortening textual words and phrases. Morse abbreviations are short forms, representing normal textual words and phrases formed from some (fewer) characters taken from the w ...
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Telegraphese
External links
Nonsecret Code: An Overview of Early Telegraph Codes
References
{{Morse code