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A Radio code is any
Many car audio systems (car radios) have a so-called 'radio code' number which needs to be entered after a power disconnection. This was introduced as a measure to deter theft of these devices. If the code is entered correctly, the radio is activated for use. Entering the code incorrectly several times in a row will cause a temporary or permanent lockout. Some car radios have another check which operates in conjunction with car electronics. If the
code
In communications and information processing, code is a system of rules to convert information—such as a letter, word, sound, image, or gesture—into another form, sometimes shortened or secret, for communication through a communication ...
that is commonly used over a telecommunication
Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than that fe ...
system such as Morse code
Morse code is a method used in telecommunication to encode text characters as standardized sequences of two different signal durations, called ''dots'' and ''dashes'', or ''dits'' and ''dahs''. Morse code is named after Samuel Morse, one of ...
, brevity codes
Brevity is concision or brevitas, the quality of being brief or concise.
It may also refer to:
* ''Brevity'' (comic strip), a comic strip created by Guy Endore-Kaiser and Rodd Perry
* brevity code, a vocal word replacement system
* Operation Br ...
and procedure words.
Brevity code
Brevity codes are designed to convey complex information with a few words or codes. Specific brevity codes include: *ACP-131
ACP-131 is the controlling publication for the listing of Q codes and Z codes. It is published by the Combined Communications Electronics Board (CCEB) countries (Australia, New Zealand, Canada, United Kingdom and United States), and revised from t ...
* Aeronautical Code signals
The Aeronautical Code signals are radio signal codes. They are part of a larger set of Q Codes allocated by the ITU-R
The ITU Radiocommunication Sector (ITU-R) is one of the three sectors (divisions or units) of the International Telecommunicatio ...
* ARRL Numbered Radiogram
An ARRL Numbered Radiogram is a brevity code used in composing ARRL Radiograms during times of radio congestion.
The code is used to transmit standard messages, sometimes with customized text, very quickly by experienced ARRL National Traffic Syst ...
* Multiservice tactical brevity code
Multiservice tactical brevity codes are codes used by various military forces. The codes' procedure words, a type of voice procedure, are designed to convey complex information with a few words.
American/NATO codes
This is a list of American s ...
* Ten-code
Ten-codes, officially known as ten signals, are brevity codes used to represent common phrases in voice communication, particularly by law enforcement and in Citizens Band (CB) radio transmissions. The police version of ten-codes is officially k ...
* Phillips Code
The Phillips Code is a brevity code (shorthand) created in 1879 by Walter P. Phillips (then of the Associated Press) for the rapid transmission of press reports by telegraph. It defined hundreds of abbreviations and initialisms for commonly us ...
* NOTAM Code
NOTAM Code is an aeronautical radiotelegraph and radiotelephony brevity code used to transmit information about radio navigation aids, airports, lighting facilities, dangers to aircraft, and actions related to search and rescue. All NOTAM Codes st ...
*
Operating signals
Brevity codes that are specifically designed for use between communications operators and to support communication operations are referred to as "operating signals
Operating signals are a type of brevity code used in operational communication among radio and telegraph operators. For example:
* Prosigns for Morse code
* 92 Code: telegraph brevity codes
* Q code: initially developed for commercial radiotelegr ...
". These include:
* 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 mainly ...
* 92 Code
A wire signal is a brevity code used by telegraphers to save time and cost when sending long messages. The most well-known of these was the 92 Code adopted by Western Union in 1859. The reason for this adoption was to reduce bandwidth (signal proce ...
, Western Union telegraph brevity codes
* Q code
The Q-code is a standardised collection of three-letter codes that each start with the letter "Q". It is an operating signal initially developed for commercial radiotelegraph communication and later adopted by other radio services, especially ...
, initially developed for commercial radiotelegraph communication, later adopted by other radio services, especially amateur radio. Used since circa 1909.
* QN Signals
The QN Signals are Morse code operating signals that were introduced for Amateur radio net operation in 1939 on the Michigan QMN Net to lighten the burdens of net control operators. Originally created by a committee of the Detroit Amateur Radio As ...
, published by the ARRL and used by 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 ...
operators to assist in the transmission of 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 in the 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 ...
.
* R and S brevity codes, published by the British Post Office in 1908 for coastal wireless stations and ships, superseded in 1912 by Q codes
* X code, used by European military services as a wireless telegraphy code in the 1930s and 1940s
* Z code
Z (or z) is the 26th and last letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its usual names in English are ''zed'' () and ''zee'' (), with an occasi ...
, also used in the early days of radiotelegraph communication.
Other
Morse code
Morse code is a method used in telecommunication to encode text characters as standardized sequences of two different signal durations, called ''dots'' and ''dashes'', or ''dits'' and ''dahs''. Morse code is named after Samuel Morse, one of ...
, is commonly used in Amateur radio. 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 wo ...
are a type of brevity code. Procedure word
Procedure words (abbreviated to prowords) are words or phrases limited to radio telephone procedure used to facilitate communication by conveying information in a condensed standard verbal format. Prowords are voice versions of the much older pro ...
s used in radiotelephony procedure
Radiotelephony procedure (also on-air protocol and voice procedure) includes various techniques used to clarify, simplify and standardize spoken communications over two-way radios, in use by the armed forces, in civil aviation, police and fire di ...
, are a type of radio code. Spelling alphabet
A spelling alphabet ( also called by various other names) is a set of words used to represent the letters of an alphabet in oral communication, especially over a two-way radio or telephone. The words chosen to represent the letters sound sufficient ...
s, including the ICAO spelling alphabet
The (International) Radiotelephony Spelling Alphabet, commonly known as the NATO phonetic alphabet, is the most widely used set of clear code words for communicating the letters of the Roman alphabet, technically a ''radiotelephonic spellin ...
, are commonly used in communication over radios and telephones.
Other meanings
Many car audio systems (car radios) have a so-called 'radio code' number which needs to be entered after a power disconnection. This was introduced as a measure to deter theft of these devices. If the code is entered correctly, the radio is activated for use. Entering the code incorrectly several times in a row will cause a temporary or permanent lockout. Some car radios have another check which operates in conjunction with car electronics. If the VIN
Vin or VIN may refer to:
Arts, entertainment, and media
* Vîn TV, a Kurdish language satellite television channel founded in 2007
* ''Vos Iz Neias?'', an American Jewish online news site
* Coastal radio station VIN Geraldton (callsign), a statio ...
or another vehicle ID matches the previously stored one, the radio is activated. If the radio cannot verify the vehicle, it is considered to be moved into another vehicle. The radio will then request for the code number or simply refuse to operate and display an error message such as "CANCHECK" or "SECURE".
See also
*Encoding
In communications and information processing, code is a system of rules to convert information—such as a letter, word, sound, image, or gesture—into another form, sometimes shortened or secret, for communication through a communication ...
References
{{Reflist Broad-concept articles Telecommunications