WJMK-FM
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| City | Chicago, Illinois |
|---|---|
| Broadcast area | Chicago, Illinois |
| Branding | 104.3 K-Hits |
| Slogan | Chicago's Greatest Hits |
| Frequency |
104.3 MHz (also on HD Radio) 104.3-HD2: Simulcast of WSCR/Sports |
| First air date | 1961 (frequency first used 12 March 1949 by WCFL-FM) |
| Format | Classic Hits |
| Audience share | 2.4 (Holiday 2016, Nielsen Audio[1]) |
| ERP | 4,100 watts |
| HAAT | 480 meters (1,570 ft) |
| Class | B |
| Facility ID | 28621 |
| Transmitter coordinates | 41°52′44.1″N 87°38′08.2″W / 41.878917°N 87.635611°WCoordinates: 41°52′44.1″N 87°38′08.2″W / 41.878917°N 87.635611°W |
| Callsign meaning | Close-match anagram of MaJiK for station's former branding |
| Former callsigns |
WJEZ (1977-1984) WJJD-FM (1961-1977) |
| Owner |
CBS Radio (sale to Entercom pending) (CBS Radio Inc. of Illinois) |
| Sister stations | WBBM-TV; WBBM (AM), WBBM-FM, WCFS-FM, WSCR, WUSN, WXRT-FM |
| Webcast | Flash player |
| Website | khitschicago |
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.
WJMK broadcasts in HD.
The 104.3 allocation in Chicago was originally licensed in 1948 to the Chicago Federation of Labor, and went on the air as WCFL-FM on March 12, 1949. Though licensed for 22,000 watts, it only broadcast from 3pm to 9pm, as a 400-watt simulcast of WCFL (AM) from an antenna on top of the studio. In early October 1949, the Federation shut down WCFL-FM and announced that they would surrender their FM license because they saw no possibility to make money with it.
The station signed on, with the current license, in 1961 as WJJD-FM, co-owned with 1160 WJJD (now WYLL) by Plough Broadcasting. Originally the FM station simulcast the AM station's signal during their operating hours, but changes in FCC rules eventually led to a separate format for the FM. By 1977, the station was known as WJEZ and had a "beautiful country" format, playing instrumental background music with country overtones. This was not a ratings success, and by 1980, WJEZ had a more conventional country music format. In the early 1980s, the station gained competition as WUSN (99.5 FM) also adopted a similar format. At that point, WJJD 1160 adopted a pop standards format and became known as "Music Of Your Life". In 1983, Infinity Broadcasting acquired both WJJD and WJEZ.
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