The maximum output power of CB radios is 4 watts in AM (Amplitude Modulation) and FM (Frequency Modulation) and 12 watts PEP in SSB (Single Side Band) and the frequency band for CB radios extends from 26,965 to 27,405 MHz.

For more information on the US market, check out the CB TECH and the CB TALK sections, as well as the FCC Website.