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Ten-code. Ten-codes, officially known as ten signals, are brevity codes used to represent common phrases in voice communication, particularly by US public safety officials and in citizens band (CB) radio transmissions. The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code. [1]
Police code. 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 ...
"AM Stations in the U.S.: Kentucky", Radio Annual Television Year Book, New York: Radio Television Daily, 1963, OCLC 10512375 – via Internet Archive; Terry L. Birdwhistell (1981). "WHAS Radio and the Development of Broadcasting in Kentucky, 1922-1942". Register of the Kentucky Historical Society. 79 (4): 333–353. JSTOR 23379633.
Download QR code; Wikidata item ... This is a list of AM radio stations in the United States having call signs beginning ... Indiana, Pennsylvania: WDAE: 620 AM: St ...
Hamilton County, Indiana blocked the public from hearing scanner traffic last July, while Hendricks County now releases fire and police calls on a 15-minute delay. Larger cities such as Louisville ...
The original radio stations were primarily used for private point-to-point communication. The early 1920s saw the introduction of radio broadcasting, and by the end of 1922 there were over 500 broadcasting stations operating in the United States. Most of the first broadcasting stations received randomly assigned three-letter call signs.
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In the United States, response codes are used to describe a mode of response for an emergency unit responding to a call. They generally vary but often have three basic tiers: Code 3: Respond to the call using lights and sirens. Code 2: Respond to the call with emergency lights, but without sirens. Alternatively, sirens may be used if necessary ...