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  2. Ten-code - Wikipedia

    en.wikipedia.org/wiki/Ten-code

    The Chicago Police Department uses the radio code '10-1', which means an officer needs urgent help right away. The Chicago P.D. (TV series) TV show also uses '10-1' as well. Police officer retirement. Often when an officer retires, a call to dispatch is made.

  3. Police code - Wikipedia

    en.wikipedia.org/wiki/Police_code

    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 ...

  4. Signal strength and readability report - Wikipedia

    en.wikipedia.org/wiki/Signal_strength_and...

    The QSA code and QRK code are interrelated and complementary signal reporting codes for use in wireless telegraphy . They replaced the earlier QSJ code. They replaced the earlier QSJ code. Currently, the QSA and QRK codes are officially defined in the ITU Radio Regulations 1990, Appendix 13: Miscellaneous Abbreviations and Signals to Be Used in ...

  5. Communication during the September 11 attacks - Wikipedia

    en.wikipedia.org/wiki/Communication_during_the...

    Following the attacks, the issues with the cell network weren't resolved until 36 cellular COWs (cell towers on wheels) were deployed by September 14, 2001, in Lower Manhattan to support the U.S. Federal Emergency Management Agency (FEMA) and provide critical phone service to rescue and recovery workers.

  6. Radiotelephony procedure - Wikipedia

    en.wikipedia.org/wiki/Radiotelephony_procedure

    The United States has been assigned all call signs with the prefixes K, N, and W, as well as AAA–ALZ. Allocating call signs within these groups is the responsibility of the National Telecommunications and Information Administration (almost all government stations) or the Federal Communications Commission (all other stations), and they subdivide the radio call signs into the following groups:

  7. In Texas, can police search my cellphone when they pull me ...

    www.aol.com/texas-police-search-cellphone-pull...

    A case decided in 2020 found that law enforcement cannot use information from the lock screen of a cell phone. Incoming calls, text messages or any other incriminating data viewed on the phone ...

  8. End of Watch Call - Wikipedia

    en.wikipedia.org/wiki/End_of_Watch_Call

    The End of Watch Call or Last Radio Call is a ceremony in which, after a police officer's death (usually in the line of duty but sometimes from illness), the officers from his or her unit or department gather around a police radio, over which the police dispatcher issues one call to the officer, followed by a silence, then a second call, followed by silence.

  9. Home Office radio - Wikipedia

    en.wikipedia.org/wiki/Home_Office_radio

    Home Office radio. Home Office radio was the VHF and UHF radio service provided by the British government to its prison service, emergency service ( police, ambulance and fire brigade) and Home Defence agencies from around 1939. The departmental name was the Home Office Directorate of Telecommunications, commonly referred to as DTELS.