An Entity of Type: station, from Named Graph: http://dbpedia.org, within Data Space: dbpedia.org

A clear-channel station is an AM radio station in North America that has the highest protection from interference from other stations, particularly concerning night-time skywave propagation. The system exists to ensure the viability of cross-country or cross-continent radio service enforced through a series of treaties and statutory laws. Known as Class A stations since 1982, they are occasionally still referred to by their former classifications of Class I-A (the highest classification), Class I-B (the next highest class), or Class I-N (for stations in Alaska too far away to cause interference to the primary clear-channel stations in the lower 48 states). The term "clear-channel" is used most often in the context of North America and the Caribbean, where the concept originated.

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  • Als Clear Channel wird vor allem in den USA ein Kommunikationskanal bezeichnet, auf dem lediglich ein Sender operiert. (de)
  • A clear-channel station is an AM radio station in North America that has the highest protection from interference from other stations, particularly concerning night-time skywave propagation. The system exists to ensure the viability of cross-country or cross-continent radio service enforced through a series of treaties and statutory laws. Known as Class A stations since 1982, they are occasionally still referred to by their former classifications of Class I-A (the highest classification), Class I-B (the next highest class), or Class I-N (for stations in Alaska too far away to cause interference to the primary clear-channel stations in the lower 48 states). The term "clear-channel" is used most often in the context of North America and the Caribbean, where the concept originated. Since 1941, these stations have been required to maintain an effective radiated power of at least 10,000 watts to retain their status. Nearly all such stations in the United States, Canada and The Bahamas broadcast at 50,000 watts, with several clear-channel stations in Mexico going as high as 150,000 watts and XEW in Mexico City having operated at 250,000 watts for over 80 years. Cuba was originally included in the plan and had several stations given clear-channel status, but stopped participating after the Cuban Revolution of 1959. (en)
  • Canal libre internacional es una frecuencia de radio de una estación de AM en las Américas que goza de la mayor protección contra la interferencia de otras estaciones de radio del mismo o de otros países, en particular, en lo que respecta a interferencias por propagación de ondas de cielo nocturno. El sistema existe para garantizar la viabilidad del servicio de radio entre países o continentes, y se aplica a través de una serie de tratados y leyes estatutarias. El término «clear-channel» (canal despejado) se usa con mayor frecuencia en América del Norte y el Caribe, en cambio la expresión «canal libre internacional» se utiliza más en América del Sur.​ Desde 1941, se ha requerido que estas estaciones mantengan una potencia al aire de al menos 10.000 vatios de potencia para mantener esa calidad. Casi todas estas estaciones en los Estados Unidos, Canadá y las Bahamas transmiten con 50.000 vatios de potencia. En México hay varias estaciones con canal libre internacional que alcanzan los 150.000 vatios de potencia. En el caso de XEW de Ciudad de México hasta 2015 operó con 250.000 vatios (actualmente 100.000 vatios), lo cual hizo por más de 80 años. En Uruguay, CX 12 Radio Oriental de Montevideo, opera con 100.000 vatios de potencia. Cuba originalmente tenía varias estaciones con canal libre internacional, pero la isla dejó de participar de este programa de protección, tras la Revolución Cubana de 1959. (es)
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  • Als Clear Channel wird vor allem in den USA ein Kommunikationskanal bezeichnet, auf dem lediglich ein Sender operiert. (de)
  • A clear-channel station is an AM radio station in North America that has the highest protection from interference from other stations, particularly concerning night-time skywave propagation. The system exists to ensure the viability of cross-country or cross-continent radio service enforced through a series of treaties and statutory laws. Known as Class A stations since 1982, they are occasionally still referred to by their former classifications of Class I-A (the highest classification), Class I-B (the next highest class), or Class I-N (for stations in Alaska too far away to cause interference to the primary clear-channel stations in the lower 48 states). The term "clear-channel" is used most often in the context of North America and the Caribbean, where the concept originated. (en)
  • Canal libre internacional es una frecuencia de radio de una estación de AM en las Américas que goza de la mayor protección contra la interferencia de otras estaciones de radio del mismo o de otros países, en particular, en lo que respecta a interferencias por propagación de ondas de cielo nocturno. El sistema existe para garantizar la viabilidad del servicio de radio entre países o continentes, y se aplica a través de una serie de tratados y leyes estatutarias. El término «clear-channel» (canal despejado) se usa con mayor frecuencia en América del Norte y el Caribe, en cambio la expresión «canal libre internacional» se utiliza más en América del Sur.​ (es)
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  • Clear Channel (Frequenzplan) (de)
  • Canal libre internacional (es)
  • Clear-channel station (en)
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