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A clear-channel station is a North American AM radio station that has the highest level of protection from interference from other stations, particularly from nighttime skywave signals. This classification exists to ensure the viability of cross-country or cross-continent radio service enforced through a series of treaties and statutory laws.
Clear-channel stations — radio stations whose nighttime skywave signals have a high level of protection from interference. The main article for this category is Clear-channel station . v
The Federal Radio Commission's (FRC) General Order 40, dated August 30, 1928, described the standards for a sweeping reorganization of radio broadcasting in the United States. This order grouped the AM radio band transmitting frequencies into three main categories, which became known as Clear Channel, Regional, and Local. It also included ...
Clear Channel grew from 40 stations to 1,240 stations in seven years (30 times more than congressional regulation previously allowed) . [6] Their aggressive acquisitions have gained them enemies as well as supporters, but their ownership of 247 of the nation's 250 largest radio markets and their domination of the Top 40 format makes them ...
Class-A stations are still low-power, but are protected from RF interference and from having to change channel should a full-service station request that channel. [ 13 ] Additionally, class-A stations, LPTV stations, and translators are the only stations currently authorized to broadcast both analog and digital signals, unlike full-power ...
Also AM radio or AM. Used interchangeably with kilohertz (kHz) and medium wave. A modulation technique used in electronic communication where the amplitude (signal strength) of the wave is varied in proportion to that of the message signal. Developed in the early 1900s, this technique is most commonly used for transmitting an audio signal via a radio wave measured in kilohertz (kHz). See AM ...
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Clear channel may refer to: iHeartMedia, a US broadcasting company formerly known as Clear Channel Communications. Clear Channel Outdoor, an advertising company formerly a subsidiary of iHeartMedia. Clear-channel station, a regulatory category of AM broadcast stations in North America.