The station has been off air since it was rebranded as Smooth Radio in 2005. The plans were announced with TRLC's first-half results to 31 March, which saw it cut losses to £528,000 from £9.49 million for the same period last year.
The Week: Media news - Jazz FM set for relaunch
The Local Radio Company has signed a three-year licensing deal with Guardian Media Group to broadcast Jazz FM on DAB from the end of September.