WNZK

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WNZK (680 and 690 AM) is a commercial radio station licensed to Dearborn Heights, Michigan, serving the Detroit metropolitan area. It is owned by the Birach Broadcasting Corporation and airs an ethnic format billed as the "Station of the Nations." The programming is brokered, with hosts paying for time and sometimes advertising their clients’ goods and services during their shows. WNZK broadcasts in Arabic and several Eastern European languages.

A unique feature of WNZK is that it uses two frequencies: 690 AM during the daytime and 680 AM at night. The transmitter is located off Will Carleton Road in Huron Charter Township, Michigan.

WNZK began broadcasting on October 12, 1985. It was originally licensed to Westland and switched to Dearborn Heights by 1990. The original studios were at 21700 Northwestern Highway in Southfield, Michigan. According to the FCC, WNZK is the only AM station in North America that uses two frequencies, one by day and one at night.