The station plays a mix of contemporary and classic popular music alongside local news and travel.
Wear FM gained international acclaim for its community programming and social inclusion and won the Sony Award for UK Radio Station of the Year in 1992.
Sun City 103.4's operator was financially penalised in that year by the Radio Authority for not fully adhering to elements of their Promise of Performance.
They will also expand the station onto the local DAB multiplexes across the North East to include Newcastle, Gateshead, Middlesbrough, Bishop Auckland and Darlington.
The rest of the time it takes networked programming from Nation Radio UK, with opt-outs for news, sport, travel and weather updates.