The Pop Up radio service on 18 DAB multiplexes across the UK is to close in its current format.
Ofcom has given the go-ahead for the changes, once Angel Radio has ended its run on the channel on May 15th.
Over the years, Pop Up Radio has broadcast the Manx Grand Prix, a French radio station and Celtic Music Radio.
The service has been available in Ayr, Berkshire and North Hampshire, Bristol, Cambridge, Cornwall, Coventry, Essex, Kent, Leicestershire, Norfolk, Nottinghamshire, Peterborough, Plymouth, South East Wales, Sussex, Swindon and West and South Wiltshire, Wolverhampton and Shropshire but not used as often as its owners would have anticipated.
Pop Up Radio tells us they are still open to running Pop Up Radio stations in the future on an ad-hoc basis but the current structure will no longer operate.