WTMX-FM (Chicago, IL)

WTMX, known as "The Mix" and broadcasting on 101.9 FM, is an Adult Top 40 radio station based in Skokie, IL, serving the Chicago area. The station is operated by Hubbard Broadcasting. WTMX's studios are located at One Prudential Plaza, and its transmitter is situated on top of the Willis Tower, previously called the Sears Tower.