 With transmitters located throughout the region, WPSU-FM now serves over 450,000 listeners in 13 central counties of the Commonwealth, 24 hours a day.Through nationally and locally produced news, features and music programs from NPR, PRI and the station itself, WPSU-FM offers a variety of programming for a widely diverse listening audience.The station went on the air December 6, 1953 as WDFM.