The 98.3 frequency was licensed to Monroe for most of its history. The station signed on in July 1967 as WVMO (Voice of Monroe), founded by John Koehn of Adrian (also the founder of Adrian's WLEN-FM 103.9), and featured a beautiful music format for many years. The calls changed to WTWR on September 13, 1982 (after those calls were dropped by 92.3 FM in Detroit). "Tower 98" served as "Monroe's Hit Music Station," with a minimal ratings presence in Toledo, until March 2003, when the station was granted a construction permit to change its city of license to Luna Pier and to move its transmitter south into Lucas County, Ohio, from Monroe County, Michigan.
For a time after the move the station's playlist was so rhythmic-heavy that it began reporting to Radio & Records as a CHR/Rhythmic outlet rather than CHR/Pop (although it never did totally eliminate mainstream pop and rock music from its rotation), but it is now back to CHR/Pop reporting status.
Tower 98 took on the station name change from "Tower 98" to "Tower 98-3" in September of 2005. This was when its reporting status went from CHR/Rhythmic back to CHR/Pop. Since the transition from Monroe to Toledo in early 2004, "Tower 98-3" has seen four programming directors: Terri McCormmick, "Train", Brent Carey and Steve Marshall.
From Summer '05 to Winter '06 "Tower 98-3" saw its best ratings, defeating rival WVKS in the 18-34 demographic. Since then management has changed and ratings have fallen back to having a minimal presence in Toledo. In September of 2007 Cumulus management made Tower 98-3 transition once again to focus on Monroe. In November of that year, Cumulus announced that they had put the station, along with classic rock sister WXKR, up for sale.