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  2. Citizens band radio - Wikipedia

    en.wikipedia.org/wiki/Citizens_band_radio

    After the 1973 oil crisis, the U.S. government imposed a nationwide 55 mph speed limit, and fuel shortages and rationing were widespread.Drivers (especially commercial truckers) used CB radios to locate service stations with better supplies of fuel, to notify other drivers of speed traps, and to organize blockades and convoys in a 1974 strike protesting the new speed limit and other trucking ...

  3. CB radio in the United States - Wikipedia

    en.wikipedia.org/wiki/CB_radio_in_the_United_States

    The antenna may not be more than 20 feet (6.1 m) above the highest point of the structure it is mounted to, or the highest point of the antenna must not be more than 60 feet (18.3 m) above the ground (47 CFR 95.408(c)) if installed in a fixed location. [4] CB radios must include AM or SSB modulation and may include frequency modulation. [5]

  4. Astatic Corporation - Wikipedia

    en.wikipedia.org/wiki/Astatic_Corporation

    In 2012, the Citizens Band (CB) product division of Astatic that had been acquired from Omnitronics by Barjan LLC in 2006 [5] was sold to DAS Companies, a communications product distributor for interstate truck stops. DAS expanded the Astatic name to non-microphone accessories including coaxial cables, meters and antennas. [3]

  5. 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.

  6. Personal radio service - Wikipedia

    en.wikipedia.org/wiki/Personal_radio_service

    Brazil allows higher power levels than the US and most of Europe. New Zealand has two 40-channel HF CB bands available, the NZ-specific "NZ CB Band" 26.330–26.770 MHz (40 channels, AM and SSB allowed) and the standardized "mid band" 26.965–27.405 MHz (40 channels, AM and SSB allowed) for a total of 80 HF CB channels.

  7. China announces measures against Google, other US firms, as ...

    www.aol.com/news/china-anti-monopoly-regulator...

    BEIJING (Reuters) -China announced a wide range of measures on Tuesday targeting U.S. businesses including Google, farm equipment makers and the owner of fashion brand Calvin Klein, minutes after ...