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Citizens Band Radio Frequency Table

This table is the frequency chart for the legal Citizens Band Radio Service. There are 40 channels, designated 1 through 40. The service is AM but also allows for SSB operation on radios that are capable. CB, as it is called, is a two-way voice communication service for use in your personal and business activities. Expect a communication range of one to five miles. License documents are neither needed or issued. CB Rule 3 provides your authority to operate a CB unit in places where the FCC regulates radio communications, as long as you use only an unmodified FCC certificated CB unit (CB Rule 9). An FCC certificated unit has an identifying label placed on it by the manufacturer. Per the FCC, there is no age or citizenship requirement. You may operate your CB unit within the territorial limits of the fifty United States, the District of Columbia, and the Caribbean and Pacific Insular areas ("U.S."). You may also operate your CB on or over any other area of the world, except within the territorial limits of areas where radio-communications are regulated by another agency of the U.S. or within the territorial limits of any foreign government. You may also be permitted to use your CB unit in Canada subject to the rules of Industry Canada; other countries may also allow CB frequency use but it is your responsibility to verify that prior to use.

There are no height restrictions for antennas mounted on vehicles or for hand-held units (CB Rule 8). For structures, the highest point of your antenna must not be more than 20 feet above the highest point of the building or tree on which it is mounted, or 60 feet above the ground. There are lower height limits if your antenna structure is located within two miles of an airport. You may use any of the 40 CB channels on a "take-turns" basis. These channels must be shared by all CB users. There are no channels authorized in the CB Radio Service above 27.405 MHz or below 26.965 MHz. No CB channel is assigned to any specific individual or organization (CB Rule 7). Be cooperative. Keep your communications short. Never talk with another station for more than 5 minutes continuously. Then wait at least one minute before starting another communication (CB Rule 16). Use Channel 9 only for emergency communications or for traveler assistance. For complete information, see the Commission's Rules for the Citizens Band (CB) Radio Service, 47 C.F.R. 95.401-95.428. You may also find interest in the Family Radio Service (FRS) Frequency Table, General Mobile Radio Service (GMRS) Frequency Table, Multi-Use Service (FRS) Frequency Table, and the Wireless Medical Telemetry Service (WMTS) Frequency Table. Besides this CB service, the others in the same category (but not the same general purpose, are MURS, Multi-Use Radio Service, the Low Power Radio Service (LPRS) at 216-217 MHz, the Medical Implant Communications Service (MICS), the Family Radio Service (FRS) at 460 MHz, and the Wireless Medical Telemetry Service (WMTS).

As of January 4, 2011, the regulations concerning CB radio operation in the US remain in place as they have been since August 3, 2004.

1 26.965 MHz 21 27.215 MHz
2 26.975 MHz 22 27.225 MHz
3 26.985 MHz 23 27.255 MHz
4 27.005 MHz 24 27.235 MHz
5 27.015 MHz 25 27.245 MHz
6 27.025 MHz 26 27.265 MHz
7 27.035 MHz 27 27.275 MHz
8 27.055 MHz 28 27.285 MHz
9 27.065 MHz 29 27.295 MHz
10 27.075 MHz 30 27.305 MHz
11 27.085 MHz 31 27.315 MHz
12 27.105 MHz 32 27.325 MHz
13 27.115 MHz 33 27.335 MHz
14 27.125 MHz 34 27.345 MHz
15 27.135 MHz 35 27.355 MHz
16 27.155 MHz 36 27.365 MHz
17 27.165 MHz 37 27.375 MHz
18 27.175 MHz 38 27.385 MHz
19 27.185 MHz 39 27.395 MHz
20 27.205 MHz 40 27.405 MHz

updated 8.12.11

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