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.

 

CHANNEL

FREQUENCY

CHANNEL

FREQUENCY

CHANNEL

FREQUENCY

CHANNEL

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