WAUK (540 AM ESPN) is a radio station licensed to the Washington County community of Jackson, Wisconsin, serving the Milwaukee area. It is known on-air as 540 ESPN. WAUK airs a blend of ESPN Radio talk and sports play-by play, along with local sports talk and play-by-play programming.The station is owned by Beaver Dam-based Good Karma Brands (formerly Good Karma Broadcasting, LLC), and owned by Craig Karmazin, son of legendary radio executive and current Sirius XM Radio CEO Mel Karmazin.