UHF

Ultra High Frequency radio designates the radio Frequency Range of electromagnetic waves between 300 MHz and 3 GHz (3,000 MHz).

UHF has limited broadcast Range and reception, and is often used for short Range or 'line-of-sight' land communication (range of 10-40km max) . No licence required to use. The radios are generally not waterproof.

Since UHF CB uses FM on 477MHz, as compared with AM & SSB on 27MHz, the quality of the signals is slightly improved, with less Noise and interference.