In broadcasting, a channel is a range of frequencies (or, equivalently, wavelengths) assigned by a government for the operation of a particular television station or radio station. For the band see Broadcast (band Broadcasting is the distribution of audio and/or Video signals which transmit Frequency is a measure of the number of occurrences of a repeating event per unit Time. In Physics wavelength is the distance between repeating units of a propagating Wave of a given Frequency. A television station is a type of broadcast station that broadcasts both audio and Video to Television receivers in a particular area This article is about radio broadcasting for other uses see Radio (disambiguation. In common usage, the term also may be used to refer to the station operating on a particular frequency.