Clear channel

For the company, see Clear Channel Communications.The term is also used in the context of T1 [1] [2].A clear channel, in the general sense, is a communications channel (such as a radio frequency) on which only one transmitter operates at a time. In North America, the term also refers to a regulatory category for mediumwave radio stations.
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Clear Channel Communications ( NYSE: CCU) is a media conglomerate company based in the United States. Clear Channel, founded in 1972 by Lowry Mays and Red McCombs, wields considerable influence in radio broadcasting, concert promotion and hosting, and fixed advertising in the United States through its subsidiaries. The largest U.S. radio station owner owns over 1,100 full-power AM, FM, and shortwave radio stations, eleven satellite radio channels on XM Satellite Radio, and more than 30 television stations in the United States, among other media outlets in other countries. The present head of the company is Mark Mays, and its headquarters is located in San Antonio, Texas.
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1. In radio broadcasting, a frequency assigned for the exclusive use of one entity. 2. In networking, a signal path that provides its full bandwidth for a user's service. Note: No control or signaling is performed on this path.