High Quality Content by WIKIPEDIA articles! UHF television broadcasting is the use of ultra high frequency (UHF) radio for over the air transmission of television signals. Soon after the introduction of television broadcasting, the demand for additional stations in urban areas motivated the allocation of UHF frequencies to provide additional non-interfering channels. The high demand for mobile radio services and the difficulty of covering a large area with powerful transmitters at these frequencies has led to reallocation of television channels to other services. Digital television often uses UHF channels, providing additional programming content in the same bandwidth.