 Carrier current stations have coverage generally limited to a single location, such as a university campus, and operate with such low powers that they do not require a Federal Communications Commission (FCC) license.The station adopted the self-assigned call letters of WRGW, and operated on various frequencies, including AM 660, and later on AM 540.With the exception of a period between 1984 and 1986, WRGW has operated continuously since its founding, and currently at http