As well as being carried on FM in the Glasgow area, the station is also broadcast on DAB radio to the East of Scotland and online via a streaming service. It is also carried on FM in Wester Ross during non-local broadcast hours of Two Lochs Radio for which it forms a sustaining service.
The station came into being following GMG Radio‘s purchase of the Saga Radio Group in December 2006, and the granting of permission from the regulator Ofcom to change the format of its Smooth FM stations in London and the North West of England. The decision was made to change both the Smooth FM and Saga stations to Smooth Radio and Saga 105.2 FM was closed at 6pm on Friday 23 March 2007. This was then followed by a preview weekend for the new Smooth Radio giving listeners the opportunity to hear the presenters and music which would be featured on the new station.
The station operated a 24-hour schedule of local programming until August 2008 when networked output from London and Manchester was introduced, leading to the sackings of six station presenters.
Following the publication of John Myers‘ recommendations of a regulatory overhaul in commercial radio, and the passing of the Digital Economy Act 2010, which allowed stations to co-locate or drop all local shows and broadcast on national DAB, Smooth Radio merged its five England-based stations into one quasi-national station, with local news feeds produced from GMG Radio’s headquarters in Salford Quays. GMG made the announcement on 29 June 2010, that it wanted to rival BBC Radio 2 by broadcasting on the Digital 1 multiplex on DAB Digital Radio to the whole of England and Wales, as well as Sky, Freesat, Freeview, Virgin Media and online. A regional flavour would be kept with split news, travel and weather bulletins broadcasting in the FM and DAB regional stations in the North East, North West, West Midlands and East Midlands. London listeners and those tuning nationally would hear national information.