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Shortwave broadcasting in the United States allows private ownership of commercial and non-commercial shortwave stations that are not relays of existing AM/MW or FM radio stations, as are common in Africa, Europe, Asia, Oceania except Australia and Latin America. In addition to private broadcasters, the United States also has government ...
Pages in category "Shortwave radio stations in the United States" The following 33 pages are in this category, out of 33 total.
Transmitted via Lahti radio station from 1938 to 1948, Pori shortwave station from 1948 to 1987 and finally then new Pori's shortwave center in Preiviiki district from 1987 to the end of 2006. Known before early 1970s as shortwave service of Finnish Broadcasting Company. Scandinavian Weekend Radio: 2000 Yes France Radio France Internationale ...
Shortwave bands are frequency allocations for use within the shortwave radio spectrum (the upper medium frequency [MF] band and all of the high frequency [HF] band). Radio waves in these frequency ranges can be used for very long distance (transcontinental) communication because they can reflect off layers of charged particles in the ionosphere and return to Earth beyond the horizon, a ...
Like WWV, WWVH's main function is the dissemination of the official U.S. Government time and frequency standard. Due to ionospheric conditions, at certain times and locations some listeners may receive both WWV and WWVH on the same frequency at the same time. The information modulated on the carrier is modified to reduce confusion if both are ...
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Shortwave radio frequency energy is capable of reaching any location on the Earth as it is influenced by ionospheric reflection back to Earth by the ionosphere, (a phenomenon known as "skywave propagation"). A typical phenomenon of shortwave propagation is the occurrence of a skip zone where reception fails. With a fixed working frequency ...
In the high Arctic, however, both the U.S. shortwave time stations and CHU become essentially unusable or unreliable. Canada has no longwave time signal transmitters. The American station WWVB is the only option for reliable time signals during geomagnetic storms in the Western Arctic, based on WWVB's published pattern maps.