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11 relations: ACP 131, Amateur radio net, American Radio Relay League, Beat (acoustics), Brevity code, Morse code, National Traffic System, Operating signals, Prosigns for Morse code, Q code, Z code.
ACP 131
ACP-131 is the controlling publication for the listing of Q codes and Z codes.
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Amateur radio net
An amateur radio net, or simply ham net, is an "on-the-air" gathering of amateur radio operators.
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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 USA.
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Beat (acoustics)
In acoustics, a beat is an interference pattern between two sounds of slightly different frequencies, perceived as a periodic variation in volume whose rate is the difference of the two frequencies.
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Brevity code
Brevity codes are used in amateur radio, maritime, aviation and military communications.
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Morse code
Morse code is a method of transmitting text information as a series of on-off tones, lights, or clicks that can be directly understood by a skilled listener or observer without special equipment.
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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.
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Operating signals
Operating signals are one type of brevity code wherein the signals are designed and used primarily to support the communication of the communications (radio and telegraph) operators among themselves with respect to communications operations, instead of communicating abbreviated messages about non-communications related activities.
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Prosigns for Morse code
Procedure signs or prosigns are shorthand signals used in radio telegraphy procedures, for the purpose of simplifying and standardizing communications related to radio operating issues among two or more radio operators.
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Q code
The Q code is a standardized collection of three-letter codes all of which start with the letter "Q".
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Z code
Z Code (like Q Code and X Code) is a set of operating signals used in CW, TTY and RTTY radio communication.
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