WRSR
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| City | Owosso, Michigan |
|---|---|
| Broadcast area | [1] Flint, Michigan market |
| Branding | 103.9 The Fox |
| Slogan | Flint's Classic Rock Authority |
| Frequency | 103.9 MHz |
| First air date | 1965 (as WOAP-FM) |
| Format | Classic rock |
| ERP | 2,850 watts |
| HAAT | 147 meters |
| Class | A |
| Facility ID | 41681 |
| Transmitter coordinates | 42°59′44″N 83°59′33″W / 42.99556°N 83.99250°W |
| Callsign meaning | W R Soft Rock 103.9 (previous format) |
| Former callsigns | WAHV (2/5/96-5/15/98) WMZX (1/15/89-2/5/96) WOAP-FM (1965-1/15/89) |
| Owner | Krol Communications Inc. |
| Webcast | Listen Live |
| Website | classicfox.com |
WRSR (103.9 FM, "The Fox") is a radio station broadcasting a classic rock format. Licensed to Owosso, Michigan, it first began broadcasting in 1965 under the WOAP-FM call sign. Its transmitter is located east of Owosso, while its studios are located in Flint Township.
WRSR retains a fairly strong signal in Flint and the surrounding areas. However, as listeners travel east of Lapeer the signal tends to weaken. The signal can be heard as far south as Auburn Hills and as far west as Carson City. During certain atmospheric conditions it is often interfered with by CHOK 103.9 in Sarnia, Ontario, east of Lapeer County.
The original WOAP-FM began broadcasting in April 1948 at 103.1 on the FM dial. Although the station's owner, The Owosso Argus-Press, which also owned AM station WOAP 1080 AM, heavily promoted its new FM station, WOAP-FM was a failure and went off the air by 1953. WOAP-FM resurfaced on its current 103.9 frequency on December 2, 1965. It served as a simulcast of the full-service/MOR AM station and continued the AM's programming after AM sign-off as well as broadcasting local high-school sports. Eventually WOAP-AM and WOAP-FM separated programming completely, with the FM station taking a beautiful music format.
In 1987, the Federal Communications Commission's concerns about concentration of media ownership in the Owosso area at that time forced the Argus-Press to sell WOAP-AM-FM.
In 1989, WOAP-FM changed its call letters to WMZX and its format to adult contemporary.
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