WKDU is an award winning non-commercial college radio station in Philadelphia broadcasting on 91.7 FM. It is owned by Drexel University and operated by Drexel students, with several alumni among its on-air staff. It is the only free-format non-commercial FM station in the city of Philadelphia. Its transmitter is located atop Van Rensselaer Hall, a dormitory on the Drexel campus, in the University City section of Philadelphia. Its studio is in the basement of the Creese Student Center. WKDU was the 2010 and 2011 CMJ Station of the Year.