This table is the frequency chart for the legal CB Radio(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.

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This handy guide will help to explain what some terms used to describe two-way radios and their use actually mean.

CTCSS (Continuous Tone Controlled Squelch System)

A method of making most use of a given radio channel, where a group of radios are set to transmit an inaudible tone with every transmission, and at the same time to only receive messages with the same tone set.

It allows several groups of radio users to make use of the same channel without constantly hearing messages not intended for their group.

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