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Shown with Astatic brand D-104 desk mic Cobra 18 WX ST II mobile CB radio with microphone 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 ...
The Industrial/Business Radio Pool of the Private Land Mobile Radio Services has several channels just above the Citizen's Band, at 27.430, 27.450, 27.470, 27.490, 27.510, and 27.530 MHz. [15] The federal government has the frequencies from 27.540 up to 28.000. Many civilian agencies use, or used to use, the frequencies 27.575 and 27.585 for ...
Units are allowed up to 10 watts PEP RF power. External high-gain antennas are permitted. Base station antennas are permitted and base stations are commonly found in this band. Use of selective calling and tone squelch systems such as DTMF, CTCSS and DCS are allowed. According to Thai law, transceivers operating on the 78 MHz band must have a ...
The base station is one end of a communications link. The other end is a movable vehicle-mounted radio or walkie-talkie. [6] Examples of base station uses in two-way radio include the dispatch of tow trucks and taxicabs. Basic base station elements used in a remote-controlled installation. Selective calling options such as CTCSS are optional.
[2] [3] After December 2017, the FCC no longer accepts applications to certify hand-held FRS units providing for transmission in any other radio band. FRS radios must use only permanently attached antennas; [2] there are also table-top FRS "base station" radios that have whip antennas. This limitation intentionally restricts the range of ...
Both the handset and the base station have radio receivers operating in the UHF band that receive the short range bidirectional duplex radio link. Citizens band radio - a two-way half-duplex radio operating in the 27 MHz band that can be used without a license. They are often installed in vehicles and used by truckers and delivery services.
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.
By the late 1970s, Lafayette expanded to major markets across the country, struggling to compete with Radio Shack, which was purchased by Tandy Leather Co. in 1963. Lafayette ran into major financial difficulty when the Federal Communications Commission (FCC) expanded a new citizens band radio ("CB") spectrum to 40 channels in 1977. Lafayette's ...
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