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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 ...
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 ...
Examples of standardized services include PMR446 and FM Citizens Band Radio (CB) in the EU and several other countries/regions. 26–27 MHz CB radio is the oldest personal radio service and is used in nearly every country worldwide, with many countries and regions copying the United States 40-channel frequency plan. In many countries, CB radio ...
Radio broadcasting has been used in the United States since the early 1920s to distribute news and entertainment to a national audience. In 1923, 1 percent of U.S. households owned at least one radio receiver, while a majority did by 1931 and 75 percent did by 1937. [1][2] It was the first electronic "mass medium" technology, and its ...
Radio stations in United States have evolved since their early twentieth-century origins. In 1920 8MK started operations in Detroit; after it, thousands of private and public radio have operated in the United States.
Bone Fone – was a wearable radio that draped around the user's neck like a scarf. Collins 207B-1 Transmitter – was a radio transmitter manufactured in 1951 by Collins Radio Company. Crosley Pup – was an affordable mass-produced AM radio introduced by Powel Crosley Jr. in the United States in 1925. Icom – a manufacturer and brand of ...
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