It broadcasts on FM, DAB, digital TV and via BBC Sounds from studios on St Matthews Street in Ipswich.
Sudbury, Newmarket, Haverhill, Lowestoft, Southwold, Beccles and Bungay also have very poor or no DAB coverage of the Suffolk MUX.
The station was added to Freeview channel 720 in the East of England on 6 June 2016, broadcasting from the Sudbury and Tacolneston transmitters and their dependent relays.
There are two exceptions to this: two one-hour sports shows on Mondays and Fridays at 6pm and live football commentary during Ipswich Town men's matches.
Radio Suffolk is licensed to broadcast commentary on all of Ipswich Town's league and cup games on FM and DAB, but not on Freeview or via BBC Sounds.