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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]
3 wa 74.4 4 xb 77.0 5 wb 79.7 6 yz 82.5 7 ya 85.4 8 yb 88.5 9 zz 91.5 10 za 94.8 11 zb 97.4 12 1z 100.0 13 1a 103.5 14 1b 107.2 15 2z 110.9 16 2a 114.8 17 2b 118.8 18 3z 123.0 19 3a 127.3 20 3b 131.8 21 4z 136.5 22 4a 141.3 23 4b 146.2 nato 150.0 24 5z 151.4 25 5a 156.7 40 159.8 26 5b 162.2 41 165.5 27 6z 167.9 42 171.3 28 6a
The last 3 data bits are a fixed '001', this leaves 9 code bits (512 possibilities) which are conventionally represented as a 3-digit octal number. Note that the first bit transmitted is the LSB, so the code is "backwards" from the transmitted bit order. Only 83 of the 512 possible codes are available, to prevent falsing due to alignment ...
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 ...
(*3×1, repeating the receiver's callsign up to 3 times, and the sender's once, is proper procedure and should be used when first establishing contact, especially over a long distance. A 1×1, i.e. 'Bronwyn this is Albacore,' or 2×1, i.e. 'Bronwyn, Bronwyn, this is Albacore,' is less proper, but acceptable especially for a subsequent contact.)
Digital mobile radio. Digital mobile radio (DMR) is a digital radio standard for voice and data transmission in non-public radio networks. It was created by the European Telecommunications Standards Institute (ETSI), [1] and is designed to be low-cost and easy to use. DMR, along with P25 phase II and NXDN are the main competitor technologies in ...
A two-way radio is a radio transceiver (a radio that can both transmit and receive radio waves ), which is used for bidirectional person-to-person voice communication with other users with similar radios, [1] in contrast to a broadcast receiver, which only receives transmissions. Two-way radios usually use a half-duplex communication channel ...
AN/PRC-6, somewhat battered from use. The AN/PRC-6 is a walkie-talkie (correctly a "Handie Talkie [1]) used by the U.S. military in the late Korean War era through the Vietnam War. Raytheon developed the RT-196/PRC-6 following World War II as a replacement for the SCR-536 "handy-talkie". The AN/PRC-6 operates using wide-band FM on a single ...