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Conventions used in wireless telegraphy
A radio code is any code that is commonly used over a telecommunication system such as Morse code, brevity codes and procedure words. Brevity codes are
Radio_code
Brevity codes used by law enforcement
police radio code is a brevity code, usually numerical or alphanumerical, used to transmit information between law enforcement over police radio systems
Police_radio_code
Brevity codes used by a variety of US professionals
citizens band (CB) radio transmissions. The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code. The codes, developed during
Ten-code
Type of Morse code operating signal
Maritime Mobile Service or Amateur Radio Service) and in voice communications (e.g. Aeronautical mobile service). Most Q-codes defined in 1947 are still in
Q_code
Transmission of language with brief pulses
trained in it. Morse code is usually transmitted by on-off keying of an information-carrying medium such as electric current, radio waves, visible light
Morse_code
Older method of identifying ships
the introduction of radio, code letters were also used as radio call signs. In 1857, the United Kingdom sponsored the Commercial Code of Signals for the
Code_letters
Color code to indicate values of electronic components
system for color coding or marking their components. In the 1920s,[citation needed] the RMA resistor color code was developed by the Radio Manufacturers
Electronic_color_code
Spoken alphabet for radio communication
one another over radio and telephone. The words were chosen to be accessible to speakers of English, French and Spanish. Some of the code words were changed
NATO_phonetic_alphabet
Non-commercial use of the radio spectrum
amateur radio equipment. Radiotelegraphy using International Morse code, or continuous wave (CW), is one of the oldest modes in amateur radio. Although
Amateur_radio
2011-451". Canadian Radio-television and Telecommunications Commission. 28 July 2011. Retrieved 29 July 2011. "639 to be Sask.'s 2nd area code". CBC News. 14
List of North American Numbering Plan area codes
List_of_North_American_Numbering_Plan_area_codes
Communications service for UK prisons and emergency services
Home Office radio was the VHF and UHF radio service provided by the British government to its prison service, emergency service (police, ambulance and
Home_Office_radio
Topics referred to by the same term
fraud and a common scam Area code 419 for the northwestern part of Ohio Police radio code for "dead human body" UN M49 code for Latin America and the Caribbean
419_(disambiguation)
Resources and systems used by the Los Angeles Police Department
Source: Code 1: Answer radio Code 2: Respond to the call without emergency lights and sirens Code 3: Respond to the call with lights and sirens Code 4: No
Los Angeles Police Department resources
Los_Angeles_Police_Department_resources
U.S. television censorship rules (1952–1983)
violence and other matters. Prior to the Television Code, the 1935 NAB Code of Ethics for radio was applied to television but fewer than half of television
Television_Code
Citizens Band slang
and Canada. Brevity code Ten-code Richard David Ramsey (5 Mar 2004), "The People Versus Smokey Bear: Metaphor, Argot, and CB Radio", The Journal of Popular
List_of_CB_slang
Military personnel using their native languages for secret wartime communication
messages. Code talkers transmitted messages over military telephone or radio communications nets using formally or informally developed codes built upon
Code_talker
country codes are telephone number prefixes for reaching subscribers in foreign countries or areas by international direct dialing (IDD). Country codes are
List of telephone country codes
List_of_telephone_country_codes
Radio and telegraph signals encoding longer definitions
Brevity codes are used in amateur radio, maritime, aviation, police, and military communications. They are designed to convey complex information with
Brevity_code
Predefined shorthand signals
signals used in Morse code telegraphy, for the purpose of simplifying and standardizing procedural protocols for landline and radio communication. The procedural
Prosigns_for_Morse_code
Communications protocol standard in FM radio broadcasts
moving out of range). Before performing the switch, a radio will check for a matching PI code to ensure the AF is the same station. This is often used
Radio_Data_System
Identification code for countries
country codes: The E.212 mobile country codes (MCC), for mobile/wireless phone addresses. The ITU prefix, the first few characters of call signs of radio and
Country_code
Use of radio waves for communication
Marconi developed the first apparatus for long-distance radio communication, sending a wireless Morse Code message to a recipient over a kilometer away in 1895
Radio
Pioneering five-bit character encodings
The Baudot code (French pronunciation: [bodo]) is an early character encoding for telegraphy invented by Émile Baudot in the 1870s. It was the predecessor
Baudot_code
Brevity code for Ham radio signal reports
radio operators, shortwave listeners, and other radio hobbyists to exchange information about the quality of a radio signal being received. The code is
R-S-T_system
and receiving transmissions. Radio was at first employed for "wireless telegraphy", using on-off signaling such as Morse code, initially for private point-to-point
History_of_radio
Brevity codes used for aviation
The Aeronautical Code signals are radio signal codes. They are part of a larger set of Q Codes allocated by the ITU-R during the International Telecommunication
Aeronautical_Code_signals
American radio personality (born 1978)
simply Charlamagne, is an American radio host and television presenter. He is a co-host of the nationally syndicated radio show The Breakfast Club along with
Charlamagne_tha_God
Method of communication by radio waves
transmitted by pulses of radio waves of two different lengths called "dots" and "dashes", which spell out text messages, usually in Morse code. In a manual system
Wireless_telegraphy
Morse code operating signal of the US Army / NATO
Z Code (like Q Code and X Code) is a set of operating signals used in CW, TTY and RTTY radio communication. There are at least three sets of Z codes. There
Z_code
International Morse code distress signal for help
first agreed upon by the International Radio Telegraphic Convention in 1906, was merely a distinctive Morse code sequence and was initially not an abbreviation
SOS
radio communication failure or another type of emergency. ICAO doc 4444 & ICAO Annex 10 "UK AIP ENR 1.6.2 – SSR Operating Procedures and UK SSR Code Assignment
List_of_transponder_codes
Bar Code
This is a list of country codes used by GS1. Not to be confused with target-market-country-code. Source: GS1 Company Prefix Note GS1 member companies
List_of_GS1_country_codes
Japanese telegraphic code
International Code. Kana in Iroha order. Tap code Millikin, Donald (September 1942). "The Japanese Morse Telegraph Code". QST. Vol. XXVI, no. 9. American Radio Relay
Wabun_code
American shortwave time signal radio station
WWV began broadcasting 500-word "Daily Radio Marketgrams", prepared by the U.S. Bureau of Markets, in Morse code on 750 kHz, which reportedly could be
WWV_(radio_station)
American longwave time signal radio station
both voice and time code on multiple shortwave radio frequencies. WWVB is not an acronym or abbreviation but a call sign for the radio station. While most
WWVB
Airborne radio transponder
given code by an air traffic controller, via the radio, using a phrase such as "Cessna 123AB, squawk 0363". The pilot then selects the 0363 code on their
Transponder_(aeronautics)
Communications protocol
Radio-paging code No. 1 (usually and hereafter called POCSAG) is an asynchronous protocol used to transmit data to pagers such as alphanumeric pagers
POCSAG
Morse code operating signal for signal quality reports
format, SINPO code, was published in the ITU Radio Regulations, Geneva, 1959, but is longer and unwieldy for use in the fast pace of Morse code communications
QSA and QRK radio signal reports
QSA_and_QRK_radio_signal_reports
Clock which synchronizes its time using radio transmitters
clock or watch that is automatically synchronized to a time code transmitted by a radio transmitter connected to a time standard such as an atomic clock
Radio_clock
Licensing of amateur radio in the US
essay-type examination and five (later ten) words per minute code examination before a Radio Inspector at one of the Department's field offices. This class
Amateur radio licensing in the United States
Amateur_radio_licensing_in_the_United_States
New Zealand broadcaster
Coronavirus breached the Radio Code of Broadcasting Practice. After leaving school at 16, Hosking wrote to Radio Avon and Radio Windy looking for work,
Mike_Hosking
Brevity code for international aviation
NOTAM Code is an aeronautical radiotelegraph and radiotelephony brevity code used to transmit information about radio navigation aids, airports, lighting
NOTAM_code
Abbreviations commonly used in Morse code
Morse code abbreviations are used to speed up Morse communications by foreshortening textual words and phrases. Morse abbreviations are short forms, representing
Morse_code_abbreviations
Industry organization for commercial radio broadcasting in Australia
In 1973, FARB created the Fairness Code for Broadcasters, which codified self-regulation in the commercial radio sector. This was consolidated and renamed
Commercial_Radio_Australia
British crime drama television series
lead ITV thriller Code of Silence". Radio Times. Retrieved 9 October 2024. Whittock, Jesse (9 October 2024). "ITV/BritBox Drama 'Code Of Silence' Cast;
Code_of_Silence_(TV_series)
Operating signals for radio signal quality
Instructions - Radio Telephone Procedures". Archived from the original on 2015-05-25. QSA and QRK code (for Morse code only) R-S-T system (for Amateur radio only)
Plain_language_radio_checks
Block programming software for radio
GNU Radio software distribution. GRC is effectively a Python code-generation tool. When a flowgraph is compiled in GRC, it generates Python code that
GNU_Radio
Group of equipment onboard aircraft
Doc 4444) one or more alphabetic codes are placed in box 10. Multiple letters are used to describe individual radio navigational capabilities and a single
Equipment_codes
Clandestine term
lower level of cumulative errors over a walkie-talkie or radio link than actual names. Code names are also used for commercial products, for a variety
Code_name
Police codes for ethnicity used in the UK
basic visual information, such as over radio. They differ from self-defined ethnicity (SDE, or "18+1") codes, which refer to how a person describes their
IC_code
Overlay area codes for Alberta, Canada
2022-308". Canadian Radio-television and Telecommunications Commission. 8 Nov 2022. Retrieved 20 May 2023. CRTC about Area code 825 Area Code Map of Canada
Area_codes_587,_825,_and_368
Morse code variant used on landline telegraph systems in the U.S.
use Morse Code at all). In the late 1890s, radio communication—initially known as "wireless telegraphy"—was invented, and used Morse Code transmissions
American_Morse_code
Telephone area codes for Manitoba
In July 2010, the Canadian Radio-television and Telecommunications Commission approved a province-wide overlay with area code 431 for implementation in
Area_codes_204,_431,_and_584
Quality rating of radio communications
reporting the strength of the radio signal and the readability (quality) of the radiotelephone (voice) or radiotelegraph (Morse code) signal transmitted by another
Signal strength and readability report
Signal_strength_and_readability_report
Systems to remember Morse characters
using manual Morse at practical speeds. Amateur radio clubs can provide resources to learn Morse code. Visual mnemonic charts have been devised over the
Morse_code_mnemonics
Maritime communication method
the 1947 International Radio Conference of the International Telecommunication Union suggested in that the International Code of Signals should fall within
International_Code_of_Signals
both modulation types and operating protocols. Morse code is called the original digital mode. Radio telegraphy, designed for machine-to-machine communication
List_of_amateur_radio_modes
Coast radio station in the United States
ceremonially marking the end of commercial Morse code use in America (as distinct from amateur radio Morse code use, which continues). This anniversary is commemorated
KPH_(radio_station)
Index to lists of airline designators
This is a list of airline codes. The table lists IATA's two-character airline designators, ICAO's three-character airline designators and the airline
Airline_codes
Type of noise gate
manufacturers are compatible.[citation needed] For those PMR446 radios with 38 codes, the codes 0 to 38 are CTCSS Tones: Selcall (Selective Calling) transmits
Squelch
Study of the properties of codes and their fitness
Coding theory is the study of the properties of codes and their respective fitness for specific applications. Codes are used for data compression, cryptography
Coding_theory
Non-profit educational organization
David J. Malan (lead instructor of CS50). freeCodeCamp launched its internet radio station titled Code Radio in 2018. It originally started as a YouTube
FreeCodeCamp
American film era (1920s–1930s)
the Motion Picture Production Code censorship guidelines (popularly known as the Hays Code) in 1934. Although the Hays Code was adopted in 1930, oversight
Pre-Code_Hollywood
Type of Morse code operating signal used by Western Union
31 required hand delivery for confirmation. Today, amateur radio operators still use codes 73 and 88 regularly, and -30- is used in journalism, as it
Wire_signal
Operating signal for "request to communicate"
It is still widely used in amateur radio which still has active use of Morse radiotelegraphy. The CQ station code was originally used by land line and
CQ_(call)
Area in which radio transmissions are heavily restricted
Zone 4 are governed by the Radio Astronomy Zoning Act, Chapter 37A of the West Virginia Code. It strictly regulates radio transmitters within ten miles
United States National Radio Quiet Zone
United_States_National_Radio_Quiet_Zone
Methods to make 2-way voice communications clear
such as the use of abbreviated codes like the CB radio ten-code, Q codes in amateur radio and aviation, police codes, etc., and jargon. Some elements
Radiotelephony_procedure
Area codes that serve the southern San Francisco Bay Area, California
Area codes 408 and 669 are telephone area codes in the North American Numbering Plan (NANP) in the U.S. state of California. The numbering plan area comprises
Area_codes_408_and_669
Numeric postal code used in the US and its territories
The ZIP Code system (an acronym for Zone Improvement Plan) is the system of postal codes used by the United States Postal Service (USPS). The term ZIP
ZIP_Code
Japanese anime television series
Code Geass: Lelouch of the Rebellion (Japanese: コードギアス 反逆のルルーシュ, Hepburn: Kōdo Giasu: Hangyaku no Rurūshu), often referred to as simply Code Geass, is
Code_Geass
Topics referred to by the same term
or Code Switch may also refer to: Code Switch, a race and culture outlet and weekly podcast from National Public Radio in the United States Code switching
Code-switching (disambiguation)
Code-switching_(disambiguation)
Packet-oriented mobile data service for 2G and 3G networks
The radio block is coded by the convolutional code specified for a particular Coding Scheme, which yields the same PHY layer data rate for all Coding Schemes
GPRS
Signals for management of telegraph circuits
brevity code used in operational communication among radio and telegraph operators. For example: Prosigns for Morse code 92 Code: telegraph brevity codes Q
Operating_signals
Former radio station in Caracas
Radio Caracas Radio was a Venezuelan radio station. Founded in 1930, it was Venezuela's oldest radio station. It was last owned by Empresas 1BC, a Venezuelan
Radio_Caracas_Radio
Area codes in southern Ontario, Canada
from area code 416. When 289 was overlaid on June 9, 2001, all local calls required ten-digit dialling. On April 13, 2010, the Canadian Radio-television
Area codes 905, 289, 365, and 742
Area_codes_905,_289,_365,_and_742
Four-letter code designation for aviation facilities around the world
The ICAO airport code or ICAO location indicator is a four-letter code designating aerodromes around the world. These codes are defined by the International
ICAO_airport_code
Small radios carried to facilitate rescue in an emergency
to allow the sending of Morse Code. AN/PRC-103 - (Air Force) Rescue Swimmer Radio. AN/PRC-112 - Offers Synthesized radio in the VHF and UHF aircraft bands
Survival_radio
Covert distress signal
A duress code is a covert distress signal used by an individual who is being coerced by one or more hostile persons. It is used to warn others that they
Duress_code
Complementary binary-coded decimal code
The Aiken code (also known as 2421 code) is a complementary binary-coded decimal (BCD) code. A group of four bits is assigned to the decimal digits from
Aiken_code
Turkish national public broadcaster
The Turkish Radio and Television Corporation (TRT; Turkish: Türkiye Radyo Televizyon Kurumu) is the national public broadcaster of Turkey, founded in
Turkish Radio and Television Corporation
Turkish_Radio_and_Television_Corporation
Type of additive noise gate
same radio frequency (called co-channel users), CTCSS circuitry mutes those users who are using a different CTCSS tone or no CTCSS. CTCSS tone codes are
Continuous Tone-Coded Squelch System
Continuous_Tone-Coded_Squelch_System
US pacifist, anti-war organization
Code Pink: Women for Peace (often stylized as CODEPINK) is a pacifist, anti-war organization registered in the United States as a 501(c)(3) organization
Code_Pink
Area codes for Saskatchewan, Canada
October 2010, the Canadian Radio-television and Telecommunications Commission (CRTC) tentatively reserved a group of new area codes for future relief of existing
Area_codes_306,_639,_and_474
Topics referred to by the same term
England, UK Heidelberg's vehicle registration plate code Hunedoara County (Romania)'s ISO 3166 code Hansen's disease or leprosy Hirschsprung's disease
HD
Canadian non-geographic area code
Central office prefixes for area code 600 are assigned according to a special set of guidelines issued by the Canadian Radio-television and Telecommunications
Area_code_600
Navigation system formerly used by aircraft
sky. Pilots navigated using low-frequency radio by listening to a stream of automated "A" and "N" Morse codes. For example, they would turn or slip the
Low-frequency_radio_range
Mobile data technology for GSM networks
introduction of sophisticated methods of coding and transmitting data, EDGE delivers higher bit-rates per radio channel, resulting in a threefold increase
EDGE_(telecommunication)
Telephone area code in British Columbia, Canada
Area code 250 is a telephone area code in the North American Numbering Plan (NANP) for the Canadian province of British Columbia outside the Lower Mainland
Area_code_250
Digital audio-based protocol used for broadcasting emergency alerts to specific areas
to transmit data with radio broadcasts. In 1985, the NWS forecast offices began experimenting with placing special digital codes at the beginning and end
Specific Area Message Encoding
Specific_Area_Message_Encoding
Type of linear error-correcting code
Golay code is a type of linear error-correcting code used in digital communications. The binary Golay code, along with the ternary Golay code, has deep
Binary_Golay_code
Telephone area code in British Columbia, Canada
but the addition of area code 778 required the implementation of ten-digit dialling throughout the region. The Canadian Radio-television and Telecommunications
Area_code_604
Telephone area codes for Toronto, Ontario
Area codes 416, 647, 437, and 942 are telephone overlay area codes in the North American Numbering Plan (NANP) for the city of Toronto, Ontario, Canada
Area codes 416, 647, 437, and 942
Area_codes_416,_647,_437,_and_942
Character encoding standard
ASCII (/ˈæski/ ASS-kee), an acronym for American Standard Code for Information Interchange, is a character encoding standard for representing a particular
ASCII
Changing keyless entry code for extra security
pre-shared random seed. A rolling code transmitter is useful in a security system for improving the security of radio frequency (RF) transmission, comprising
Rolling_code
Signal coding technique
code. Puncturing was introduced by Gustave Solomon and J. J. Stiffler in 1964. Singleton bound, an upper bound in coding theory Chris Johnson. "Radio
Punctured_code
American television host
Daniela (30 August 2015). "Who is Nessa Diab? The 'Girl Code' Star Is Killing It In The Radio & Television World". Bustle. "Nessa". Hot 97 | #1 for Hip
Nessa
Band Radio Service (CBRS), commonly called citizens band radio (CB radio), is one of several personal radio services defined under Title 47 of the Code of
CB_radio_in_the_United_States
U.S. federal regulations for telecommunications
and CB radio Part 97—concerning amateur radio FCC Record Cornell Law, Legal information institute reference for Title 47 FCC, Electronic Code of Federal
Title 47 of the Code of Federal Regulations
Title_47_of_the_Code_of_Federal_Regulations
Open source amateur radio mode
cyclic redundancy check (CRC) code is used for data integrity assurance. The M17 protocol is designed for use in amateur radio communications. Callsign encoding:
M17_(amateur_radio)
Field radio communications systems
circuit in each radio decodes the tones and turns the receiver audio on if the transmission is addressed to that radio. There is also a code for "broadcast"
Professional_mobile_radio
travel, tourism, insurance
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travel, tourism, insurance