 In June 1990, Interstate Communications decided to sell KWMB and the construction permit for sister FM station KMFX to Radio Ingstad Minnesota, for $275,000.Upon acquisition of KMWB and KMFX, Radio Ingstad Minnesota moved the construction permit for KMFX from Wabasha to Lake City, effectively allowing it to serve the much larger Rochester market.KMFX went on the air the following year.