WUSN
 |
|
| City | Chicago, Illinois |
|---|---|
| Broadcast area | Chicago market |
| Branding | US✶99 |
| Slogan | "Chicago's Hottest Country" |
| Frequency | 99.5 MHz (also on HD Radio) 99.5 HD-2 for The Wolf (future country) |
| First air date | June 1, 1961 |
| Format | Country |
| Audience share | 1.9 (Holiday 2016, Nielsen Audio[1]) |
| ERP | 5,700 watts |
| HAAT | 425 meters |
| Class | B |
| Facility ID | 28620 |
| Callsign meaning | US Ninety-nine (frequency) |
| Owner |
CBS Radio (sale to Entercom pending) (CBS Radio of Chicago LLC) |
| Sister stations |
WBBM-AM, WBBM-FM, WCFS-FM, WJMK, WSCR, WXRT part of CBS Corp. cluster with TV station WBBM-TV |
| Webcast | Listen Live |
| Website | US995 |
WUSN (99.5 FM) is a radio station in Chicago, Illinois which plays mainly current new country, with some select 1990s tracks. Owned by CBS Radio and branded as "US✶99", it is based at Two Prudential Plaza in the Loop, and transmits from atop the John Hancock Center with an HD Radio signal.
Until 1978, 99.5 was classical WEFM, one of the first US FM stations, and the second station in the United States to broadcast in FM stereo. The station was owned by the major locally based radio/television manufacturer Zenith. It started as WWZR in 1940 on 45.1, also as W51C, then on 98.5 when the FM band moved. It changed to 99.5 and WEFM (named for Zenith executive Eugene F. McDonald) during the late 40s, which it was until it was sold. During this time, the only commercials were for Zenith, one each hour, usually directing listeners to a "display salon" of Zenith products located on the Magnificent Mile (Michigan Avenue), "Where no sales are made."
In the early 1970s Zenith agreed to sell WEFM to General Cinema Corporation, which intended to change the station's call letters to WICV (pseudo-Roman numerals for 99.5) and institute a rock format. Objections from listeners delayed the format change until May 1978, at which time General Cinema converted the station to a top 40 format but decided not to change the call sign, branding the operation as 99-"We"-FM. Morning shows were hosted by Dan Walker, the (Illinois) governor of Rock and Roll (formerly of WDHF/WMET 95½) and joined by Willak. Afternoons featured "Cox on the Radio". Other disk jockeys during the top 40 era included John Calhoun and Ken Cocker.
The WEFM call sign is now used on 95.9 FM in nearby Michigan City, Indiana, which also is imaged as "We-FM."
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