WMDX began broadcasting on April 2, 1950 as WTTN, and was licensed to Watertown, Wisconsin.[1] The station ran 250 watts, during daytime hours only, and was owned by Watertown Radio, Inc.[5] In 1961, the station's power was increased to 1,000 watts, and it began to be simulcast on 104.7 WTTN-FM.[5][6] WTTN aired a middle of the road (MOR) format in the 1970s and 1980s.[7][8][9][10] Nighttime operations were added in the late 1980s, running 7.8 watts.[10] The station adopted a country music format in 1991.[11]
In 1999, WTTN was sold to Good Karma Broadcasting for $525,000.[12] In 2001, the station adopted a news-talk format.[13] In January 2003, WTTN adopted an oldies format.[14][15] The station was branded "The Goose" during this period.[14][16][17]
In 2009, WTTN's city of license and transmitter site were moved to Columbus, Wisconsin, and its daytime power was increased to 5,000 watts using a directional array.[18] This move allowed for co-owned 100.5 WTLX to be moved from Columbus to Monona.[16] Later that year, the station adopted a Spanish languagesports format as an affiliate of ESPN Deportes.[18] In 2018, the station adopted a progressive talk format branded as "Resistance Radio", simulcasting Milwaukee based sister station WRRD.[19] This marked a return of the progressive talk format to the strongly liberal leaning Madison area since the format change of iHeart Media's WXXM to Adult Hits in 2016.
On February 6, 2023, WTTN rebranded as "Mad Radio 92.7" under new WMDX call letters.[20] Effective February 21, 2023, WMDX and translator W224EG were sold by Good Karma Broadcasting to Civic Media, Inc. for $363,000.
Translator
On May 14, 2019, WTTN began to simulcast on Madison translator W224EG (92.7 FM), and was rebranded as "Talk 92.7".[21]