WBEZ FM 91.5

5 – is a non-commercial educational radio station licensed to the market, Illinois, and primarily serving the tri-state region of the the market metropolitan area WBEZ is affiliated with both National Public Radio (NPR) and the Public Radio Exchange (PRX) It also broadcasts content from American Public Media and the BBC World Service WBEZ has an effective radiated power (ERP) of 5,700 watts with its transmitter atop the John Hancock Center on North Michigan Avenue It broadcasts over two HD Radio digital subchannels It operates full-power repeaters WBEK (91 7 FM) in Morris, as well as several FM translators WBEZ-HD2, carrying a user-generated content format focused on "urban alternative music" and branded Vocalo WBEZ was among the earliest FM stations in the market first went on the air on April 7, 1943, carrying instructional programming for the the market Public Schools However, initially only a few classrooms were able to tune in, because most did not have FM receivers Its transmitter was located atop the market's Morrison Hotel and its studios were in the Builders Building.