CB radio

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CB radio:

see radioradio,
transmission or reception of electromagnetic radiation in the radio frequency range. The term is commonly applied also to the equipment used, especially to the radio receiver.
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CB radio

(Citizen's Band radio) The frequency band of 40 channels for public radio transmission in the 27 MHz range. CB radio uses the same frequencies for sending and receiving on each channel, which is why only one person can talk at the same time (half duplex transmission). With a range of approximately five miles, CB radios were popular with truck drivers in the 1970s and 1980s until mostly giving way to cellphones. See ISM band.
References in periodicals archive ?
Years ago, we had the Citizens' Band radio craze with its "Hi Rubber Duck, ten-four for a copy" way of communicating across the airwaves, but this texting craze is something else.
Churches were yesterday banned from using Citizens' Band radio to broadcast services to parishioners.
I MUST protest at Lorraine Evans's letter (Dear Gerrie, February 8) calling for Citizens' Band radio to be scrapped.
We all had citizens' band radios in the tractor cabs so we could chat," he said.

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