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  2. Citizen (app) - Wikipedia

    en.wikipedia.org/wiki/Citizen_(app)

    Citizen is a mobile app that sends users location-based safety alerts in real time. [1][2][3][4] It allows users to read updates about ongoing reports, broadcast live video, and leave comments. [1][2] The app uses radio antennas installed in major cities to monitor 911 communications, [5] with employees filtering the audio to generate alerts ...

  3. Citizens band radio - Wikipedia

    en.wikipedia.org/wiki/Citizens_band_radio

    Cobra 50 WX ST Handheld CB Radio. Citizens band radio (CB radio) is a land mobile radio system, a system allowing short-distance one-to-many bidirectional voice communication among individuals, using two-way radios operating near 27 MHz (or the 11-m wavelength) in the high frequency or shortwave band. Citizens band is distinct from other ...

  4. CB radio in the United States - Wikipedia

    en.wikipedia.org/wiki/CB_radio_in_the_United_States

    In the United States, the Citizens Band Radio Service (CBRS), commonly called citizens band radio (CB radio), is one of several personal radio services defined under Title 47 of the Code of Federal Regulations, Part 95. [1] It is intended to be a two-way voice communication service for use in personal and business activities of the general ...

  5. Citizens' Radio - Wikipedia

    en.wikipedia.org/wiki/Citizens'_Radio

    Citizens' Radio was a radio station in Hong Kong established by pro-democracy camp figure Tsang Kin Shing. The station ran as a non-profit organization. It started trial broadcasting on 3 October 2005 on 102.8 MHz FM. The regular broadcasting hours were 7:00 pm–12:00 pm from Monday to Friday. The station ceased to operate on 30 June 2023 ...

  6. Citizens Broadband Radio Service - Wikipedia

    en.wikipedia.org/wiki/Citizens_Broadband_Radio...

    Citizens Broadband Radio Service (CBRS) is a 150 MHz wide broadcast band of the 3.5 GHz band (3550 MHz to 3700 MHz) in the United States. [1] In 2017, the US Federal Communications Commission (FCC) completed a process which began in 2012 to establish rules for commercial use of this band, while reserving parts of the band for the US Federal Government to limit interference with US Navy radar ...

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  8. CB radio in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/CB_radio_in_the_United_Kingdom

    Appearance. Citizens band radio (often shortened to CB radio) is a system of short-distance radio communications between individuals on a selection of 40 channels within the 27- MHz (11 m) band. In the United Kingdom, CB radio was first legally introduced in 1981, but had been used illegally for some years prior to that.

  9. Jeff Koinange - Wikipedia

    en.wikipedia.org/wiki/Jeff_Koinange

    Jeff Mwaura Koinange MBS (born 7 January 1966) is a Kenyan journalist and host of Jeff Koinange Live, a talk show on Citizen TV since February 2017. He was also a radio host, alongside Nick Odhiambo, on the breakfast show at HOT 96, the English-language station owned by Royal Media Services. He was a judge representing Kenya at the new East ...