WDSM

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WDSM (710 kHz) is a commercial AM radio station licensed to Superior, Wisconsin, serving the Duluth-Superior area of Northeastern Minnesota and Northwestern Wisconsin. WDSM is owned and operated by Midwest Communications and broadcasts a sports radio format. The radio studios and offices for WDSM, KDAL, KDAL-FM, KDKE, WDUL and KTCO are at 11 East Superior Street, Suite 380, in downtown Duluth.

By day, WDSM transmits with 10,000 watts non-directional. Because 710 AM is a clear channel frequency reserved for WOR New York City and KIRO Seattle, WDSM reduces power to 5,000 watts and uses a directional antenna with a four-tower array at night to avoid interference.^[2]