 To accommodate the already high ambient noise levels in the factories, the audio was highly compressed.UBN's programme content was similar to contemporary commercial radio, except that 'commercials' were to encourage safe work practice, among other subjects, and music requests were, for example, from Fred on the Chocolate Digestive line to Doris on the Jaffa Cakes.Programmes were similar to BBC Radio 1 and 2, but there were specialist programmes for Asian listeners and Country and western fans in Liverpool and Glasgow