The station began broadcasting on 13 November 1978, following the demise of the ‘Radio 4 Wales’ service (previously the Welsh Home Service) and BBC Radio 4’s transformation into a national network, moving from medium to long wave.
Following BBC Wales’ experiments with community radio in 1978, two permanent opt-out services were developed in the North East and the South East. Radio Deeside was reopened in February 1980 in response to the closure of the Shotton steelworks. Its coverage area was expanded to the rest of Clwyd in October 1981 and the station was subsequently renamed BBC Radio Clwyd, broadcasting extended local news bulletins, a mid-morning show and occasional special programming from studios in Mold until its closure in October 1993. After the closure of Radio Clwyd, local bulletins for north-east Wales continued until 2002, staff having moved from Mold to Wrexham in summer 1998.