WWRU is a Korean language AM radio station licensed to Jersey City, New Jersey, broadcasting to the New York metropolitan area on 1660 kHz AM. The station's studios are located in Manhattan.AM 1660 launched on December 8, 1995 as WJDM, shortly after the Federal Communications Commission in the United States expanded the AM band to include new stations in the range of 1610 to 1700 kilocycles. It was the first such expanded band AM station in the U.S.