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Legal (short‑range) use of CB radio is sometimes impeded by users of illegal high‑power transmitters, which can be heard hundreds of miles away. The other problem with short‑range CB use is propagation; during long‑range "skip" conditions local signals are inaudible due to reception of multiple distant signals.
Adjacent frequencies are often used by illegal operators using modified CB or amateur radio equipment. Operators sometimes refer to this activity as freebanding. 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.
Citizens band radio (often shortened to CB radio) is a system of short-distance radio communications between individuals on a selection of 40 channels within the 27-MHz (11 m) band. In the United Kingdom, CB radio was first legally introduced in 1981, but had been used illegally for some years prior to that.
The CB radio service was created in 1945 by the Federal Communications Commission (FCC), which designated a portion of the radio spectrum for use by average citizens for personal communication.
Each offense of selling or using an illegal radio jamming device carries a fine of over $100,000, the FCC said. Skip to main content. 24/7 Help. For premium support please call: 800-290 ...
Restrictions of transmissions are strictest within ten miles (16 km) of the Green Bank and Sugar Grove facilities, [4] where most omnidirectional and high-power transmissions are prohibited. Not all radio transmissions are prohibited in the Quiet Zone. For example, emergency service (police, fire, and ambulance) radios and CB radios are
Here's a brief history and a look at some of the best CB radios available today. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...
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 ...