CB (Citizens Band) Radio Service Also known in Canada as General Radio Service. A private, two- way voice communication radio service for use by the general public on an unlicensed basis for personal and business activities. CB radio operates over a short-range of 1–5 miles in the 26.965–27.405 MHz band. In the United States, the Federal Communications Commission (FCC) regulates CB radio as one of a family 74570c03.qxd 9/11/07 12:19 PM Page 88 |