KRSV-FM  KRSV-FM (98.7 FM) is a radio station broadcasting an adult contemporary music format. Licensed to Afton, Wyoming, United States, the station is currently owned by SVI Media, Inc. and began broadcasting adult contemporary music on a new station to the area called Swift 98, beginning May 4, 2016 . (KRSV-FM's logo under previous AM/FM country simulcast)