What is "wjmk"

WJMK (104.3 FM) is a classic hits radio station in Chicago, Illinois. The station is known as "K-Hits 104.3." The station adopted this format on March 14, 2011, after spending 6 years as Jack FM. Prior to that, WJMK spent 21 years as an oldies station. WJMK is owned by CBS.

The station broadcasts with an ERP of 4.1 kW from a transmitter atop Willis Tower (formerly Sears Tower), and its studios are located at Two Prudential Plaza in the Loop.