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A police code is a brevity code, usually numerical or alphanumerical, used to transmit information between law enforcement over police radio systems in the United States. Examples of police codes include " 10 codes " (such as 10-4 for "okay" or "acknowledged"—sometimes written X4 or X-4), signals, incident codes, response codes , or other ...
The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code. [ 1 ] The codes, developed during 1937–1940 and expanded in 1974 by the Association of Public-Safety Communications Officials-International (APCO), allow brevity and standardization of message traffic.
Call signs in the United States are identifiers assigned to radio and television stations, which are issued by the Federal Communications Commission (FCC) and, in the case of most government stations, the National Telecommunications and Information Administration (NTIA). They consist of from 3 to 9 letters and digits, with their composition ...
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The APCO phonetic alphabet, a.k.a. LAPD radio alphabet, is the term for an old competing spelling alphabet to the ICAO radiotelephony alphabet, defined by the Association of Public-Safety Communications Officials-International [1] from 1941 to 1974, that is used by the Los Angeles Police Department (LAPD) and other local and state law enforcement agencies across the state of California and ...
112 and 911 redirect to 110 on mobile phones and telephones that are present at all United States military installations. Jordan: 911: Mobile phones – 112. Kazakhstan: 112: Police – 102; Ambulance – 103; Fire – 101; Gas leaks – 104. Democratic People's Republic of Korea: local numbers only [51] 8119 [52] Republic of Korea: 112: 119
A minority of other police radio systems, the largest examples being the Milwaukee Police Department and Pennsylvania State Police, use the incompatible OpenSky format. TETRA , the standard in many European countries as well as other places in the world, is virtually unused in the United States.
An all-points bulletin (APB) is an electronic information broadcast sent from one sender to a group of recipients, to rapidly communicate an important message. [1] The technology used to send this broadcast has varied throughout time, and includes teletype, radio, computerized bulletin board systems (CBBS), and the Internet.