Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/AM_broadcasting> ?p ?o }
- AM_broadcasting abstract "AM broadcasting is the process of radio broadcasting using amplitude modulation (AM). AM was the first method of impressing sound on a radio signal and is still widely used today. Commercial and public AM broadcasting is authorized in the medium wave band worldwide, and also in parts of the longwave and shortwave bands. Radio broadcasting was made possible by the invention of the amplifying vacuum tube, the Audion (triode), by Lee de Forest in 1906, which led to the development of inexpensive vacuum tube AM radio receivers and transmitters during World War I. Commercial AM broadcasting developed from amateur broadcasts around 1920, and was the only commercially important form of radio broadcasting until FM broadcasting began after World War II. This period is known as the \"Golden Age of Radio\". Today, AM competes with FM, as well as with various digital radio broadcasting services distributed from terrestrial and satellite transmitters. In many countries the higher levels of interference experienced with AM transmission have caused AM broadcasters to specialize in news, sports and talk radio, leaving transmission of music mainly to FM and digital broadcasters.".
- AM_broadcasting thumbnail 20111110-OC-AMW-0038_-_Flickr_-_USDAgov_(1).jpg?width=300.
- AM_broadcasting wikiPageExternalLink am.
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- AM_broadcasting wikiPageWikiLink 1926_United_Kingdom_general_strike.
- AM_broadcasting wikiPageWikiLink 774_ABC_Melbourne.
- AM_broadcasting wikiPageWikiLink AMAX.
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- AM_broadcasting wikiPageWikiLink Abbreviation.
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- AM_broadcasting wikiPageWikiLink Amplifier.
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- AM_broadcasting wikiPageWikiLink Analog_transmission.
- AM_broadcasting wikiPageWikiLink Antenna_(radio).
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