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Learn about police codes, numerical or alphanumerical abbreviations used by law enforcement over radio systems in the U.S. See examples of 10 codes, signals, incident codes, and other types of codes, and how they vary by state, county, and agency.
Learn how different countries and agencies use predefined systems to describe the priority and response assigned to calls for service. Compare the codes and methods used by emergency services in the United States, the United Kingdom, and other jurisdictions.
Ten-codes are abbreviated phrases used by public safety officials and CB radio enthusiasts to communicate quickly and clearly. Learn about the history, meaning and usage of ten-codes, such as 10-4 (understood), 10-33 (officer needs help) and 10-7 (out of service).
Learn about the origins and development of police radio systems, and how they are used and regulated in different countries. Find out which frequencies are public and which are encrypted, and how to listen to police radio legally or illegally.
Learn about the history, structure, and functions of the state police agency of Pennsylvania, founded in 1905. Find out how to join, train, and serve as a trooper or a civilian employee of the PSP.
Learn about the techniques and standards used to communicate over two-way radios in various applications and domains. Find out how to use voice, speech, microphone, and brevity codes, and how to comply with international and national regulations.
Learn about the history and usage of the APCO phonetic alphabet, a competing spelling alphabet to the ICAO radiotelephony alphabet, used by many U.S. law enforcement agencies. Compare the APCO alphabet with other variations and see examples of code words for each letter.
If you've been shopping in a big box retail store you've probably heard an announcement on the loudspeaker such as, "code yellow toys, code yellow toys." This "code" is one of many innocuous ...