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Learn about the history, eligibility, operation, and channel assignments of citizens band radio (CB radio) in the US. Find out the frequencies, typical uses, and exceptions for the 40 CB channels from 26.965 to 27.405 MHz.
Learn about the identifiers assigned to radio and TV stations by the FCC and NTIA, and how they reflect slogans, owners, locations, and numbers. Find out which stations have the same call letters for 100 years or more, and which ones have changed many times.
CB slang is the distinctive language used by Citizens Band radio users, especially truck drivers in the US. Learn the meanings of common terms such as Smokey, Bear, 18/18 wheeler, and more.
Ten-codes are abbreviated phrases used by public safety officials and CB radio enthusiasts to communicate quickly and clearly. Learn about the history, meaning and usage of ten-codes, such as 10-4 (understood), 10-33 (officer needs help) and 10-7 (out of service).
Citizens band radio (CB radio) is a land mobile radio system for short-distance voice communication among individuals, using two-way radios near 27 MHz. Learn about its history, technical standards, and usage in different countries.
CBRS is a 150 MHz wide broadcast band of the 3.5 GHz band in the US, shared by federal and non-federal users. Learn about its history, operation, standards, and use cases for wireless networks.
Learn about the history, conventions and formats of call signs used by radio and television stations in different countries of North America. Find out the prefixes, suffixes and examples of call signs for each region and band.
Find out which radio and TV stations in the US have three-letter call signs assigned by the FCC. See the list of 67 different call signs and how they are used by AM, FM and TV stations.