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  2. CB radio in the United States - Wikipedia

    en.wikipedia.org/wiki/CB_radio_in_the_United_States

    Below the Citizen's Band, the military has the frequencies from 26.480 to 26.960 MHz. The Civil Air Patrol has 26.620 MHz, though it now uses mostly VHF frequencies. [20] In the 1950s through the 1970s CAP volunteers with crystal-controlled CBs would put this frequency in their radios.

  3. Citizens band radio - Wikipedia

    en.wikipedia.org/wiki/Citizens_band_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 personal radio service allocations such ...

  4. UHF CB - Wikipedia

    en.wikipedia.org/wiki/UHF_CB

    UHF CB is a class-licensed citizen's band radio service authorised by the governments of Australia, Europe, Malaysia, New Zealand, Singapore, Vanuatu, and in the PMR446, UHF 477 MHz band. [1] UHF CB provides 77 channels , including 32 channels (16 output, 16 input) allocated to repeater stations.

  5. Personal radio service - Wikipedia

    en.wikipedia.org/wiki/Personal_radio_service

    CB 245 MHz use a red case to indicate that it is a Citizen Band in the VHF 245-246 MHz frequency range. Thailand has two 80 channel and 160 channel [17] CB-style services, one in mid-band VHF 78 MHz band and another at high-band VHF 245 MHz band. Both services use FM mode only.

  6. CB radio in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/CB_radio_in_the_United_Kingdom

    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.

  7. Radio spectrum - Wikipedia

    en.wikipedia.org/wiki/Radio_spectrum

    A radio band is a small frequency band (a contiguous section of the range of the radio spectrum) in which channels are usually used or set aside for the same purpose. To prevent interference and allow for efficient use of the radio spectrum, similar services are allocated in bands.

  8. 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 ...

  9. Cellular frequencies in the United States - Wikipedia

    en.wikipedia.org/wiki/Cellular_frequencies_in...

    The new band plan allowed Sprint Corporation to deploy CDMA and LTE technologies on this band. The transition to the new band plan is still ongoing as of August 2016 although it's reaching its final stages. [7] Citizens Broadband Radio Service (CBRS) is the first shared access band available to the carriers. Unlike other bands listed above ...