|City of license||Waunakee, Wisconsin|
|Broadcast area||Madison, Wisconsin|
|Slogan||Today's Best Mix|
|First air date||1992 (as WYZM)|
|Format||Hot Adult Contemporary|
|Callsign meaning||MHX = "Mix"|
|Former callsigns||WIMN (1991-1992)
(Entercom License, LLC.)
|Sister stations||WMMM-FM, WOLX|
The station was known throughout most of the 1990s as country music station WYZM ("The Big Y-105") before becoming WBZU ("105-1 The Buzz") in late 2000, launching a 1980s music format with a 5,000 song marathon without interruptions. Over time, the station started to sprinkle hits from the 70s and 90s into its format, with an eventual emphasis on classic hits from all three decades.
In May 2005, the station became WCHY and rebranded as "105.1 Charlie FM" ("We Play Everything"), adopting an adult hits format very similar to the Jack FM-branded stations, with a wide-ranging list of popular music from 70s, 80s, and 90s, along with occasional music from the 1960s and 2000s. In later years, "Charlie FM" would feature commercial-free weekday morning music blocks (8-11AM) as well as "No-Repeat Work Weeks," in which no song was repeated for the entire 9AM-5PM Monday-thru-Friday work week. Aside from airing the syndicated Kidd Kraddick in the Morning show between March 2009 and May 2010, "Charlie FM" used no regular roster of live disc jockeys, with prerecorded voiceovers serving as the continuity element.
On September 4, 2012, at 2PM, after playing a half-hour of "goodbye"-themed songs (ending with *Nsync's "Bye Bye Bye" and R.E.M.'s "It's The End of the World As We Know It"), WCHY flipped to a hot adult contemporary format as "Mix 105.1," launching with Carly Rae Jepsen's "Call Me Maybe." (The station would change its call sign to WMHX on September 20, 2012.) In announcing the change, Entercom-Madison VP/Market Manager Michael Keck stated that "There is a hole in the [Madison radio] market for a station like Mix;" indeed, Madison had lacked a Hot AC-formatted station since WXXM ("Mix 92.1") dropped the format for progressive talk in 2004. "Mix 105.1" aims to position itself musically between popular competitors WZEE (Top 40) and WMGN (AC) with a playlist emphasizing current musicians including Adele, Pink, Rihanna, and Maroon 5. Jason Ryan, formerly the afternoon talent on WSJY in Fort Atkinson WI is now the host of the Morning Music Mix from 5:30-10am weekdays, Heather Moore is on from 10am-3pm and from 3-7pm Mix airs "Slacker and Steve" from Entercom owned KALC in Denver, Colorado. Entercom Madison promotions director Jeff Matthias is the 7pm-12m air talent and the overnight host is Angie Lira the Entercom Madison traffic and continuity director.
- "Mix 105.1 Debuts," from RadioInsight, originally reported 8/15/2012 and updated 9/4/2012
- "Mix 105.1" website
- "Mix 105.1" on Facebook
- "Mix 105.1" on Twitter
- Query the FCC's FM station database for WMHX
- Radio-Locator information on WMHX
- Query Nielsen Audio's FM station database for WMHX