Owned by Southern Illinois University Edwardsville, it is the primary jazz station for the Greater St. Louis area.

[2] Licensed by the Federal Communications Commission in January 1969,[3] WSIE operates with 50,000 watts of effective radiated power (ERP) at 88.7 megahertz in the FM band.

[4] A long time member of National Public Radio, they do not broadcast NPR anymore; WSIE's music programming is locally produced.

[2] The station's studios are in Dunham Hall,[5] and the transmitter and 420 feet (130 m)[4] tower are located near the Supporting Services Building on the SIUE campus.

Among broadcasters who received training at WSIE are Frank O Pinion (John Craddock); Megan Lynch, Ralph Graczak and Tom Calhoun of KMOX; Dewayne Staats (currently the play-by-play commentator with MLB's Tampa Bay Rays on Sun Sports); Paul Schankmann; Elizabeth Erwin; Steve Jankowski (previous General Manager); Sara Wojcicki; Frank Akers; Tom Dehner; and Tom Casey.