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Radio | Definition, History, & Facts | Britannica

SUBSCRIBESUBSCRIBESUBSCRIBEHomeHistory & SocietyScience & TechBiographiesAnimals & NatureGeography & TravelArts & CultureProConMoneyGames & QuizzesVideosOn This DayOne Good FactDictionaryNew ArticlesHistory & SocietyLifestyles & Social IssuesPhilosophy & ReligionPolitics, Law & GovernmentWorld HistoryScience & TechHealth & MedicineScienceTechnologyBiographiesBrowse BiographiesAnimals & NatureBirds, Reptiles & Other VertebratesEnvironmentFossils & Geologic TimeInsects & Other InvertebratesMammalsPlantsGeography & TravelGeography & TravelArts & CultureEntertainment & Pop CultureLiteratureSports & RecreationVisual ArtsImage GalleriesPodcastsSummariesTop QuestionsLists and StoriesBritannica KidsAsk the ChatbotGames & QuizzesHistory & SocietyScience & TechBiographiesAnimals & NatureGeography & TravelArts & CultureProConMoneyVideosradioIntroduction & Top QuestionsRadio’s early yearsThe Golden Age of American radioA new commercial mediumThe need for regulationThe role of advertisingThe development of networks and production centresRatings systemsA new art formRadio actingSound effectsRadio musicGolden Age programmingOrigins in vaudevilleComedySituation comedyVariety showsAnthology showsFilm-based anthology showsPolice and detective dramasWesternsHorror and suspenseScience fictionSoap operasJuvenile action and adventure seriesSportsNewsAmerican radio goes to warThe end of American radio’s Golden AgeThe Golden Age around the worldCanadaGreat BritainContinental EuropeLuxembourgGermanyFranceSoviet UnionAsiaChinaIndiaJapanLatin AmericaBrazilMexicoReinventing radio, 1945–60Postwar rebuildingGrowth of the BBCEconomic and political concernsThe rise of Top 40 radioThe FM phenomenonRadio in developing countriesNew initiatives, 1960–80FM growthPirates and public-service radioRadio in developing marketsRadio since 1980Pressures on public-service radioThe changing sound of radioIn EuropeIn the United StatesIn Latin AmericaIn AsiaIn AfricaThe global sound of radioRadio’s digital futureReferences & Edit HistoryRelated TopicsImagesCommunications Firsts QuizWhere was radio invented?What are some of the major film festivals?Entertainment & Pop CultureTelevision & RadioTV & Radio Shows & NetworksFacebookXhttps://www.britannica.com/topic/radioElon University - Imagining the Internet - 1890s � 1930s: RadioThe Canadian Encyclopedia - Radio and Television BroadcastingSocial Sci LibreTexts - Evolution of Radio BroadcastingCase Western Reserve University - Encyclopedia of Cleveland History - RadioUEN Digital Press with Pressbooks - RadioFederal Communications Commission - A Short History of Radio (PDF)The Texas A and M University System - Media Communication, Convergence and Literacy, Second Edition - The Evolution of RadioRandy Skretvedt Radio producer, writer, and scholar of 20th-century show business. Author of Laurel & Hardy: The Magic Behind the Movies.AllBritannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....HistoryThe radioradio wavesbroadcastWorld War ItrenchesRadio wavesfrequencyelectromagnetic spectrumgamma raysX-raysultraviolet lightinfrared radiationradarmicrowavestelevisionGuglielmo MarconiJames Clerk MaxwellOliver LodgeHeinrich HertzbroadcastsSeason of content unveiled for The Music is Black across BBC TV, Radio, iPlayer, Sounds and Onlinemass mediacommunicationradio wavetransmissionmusicnewspapersmagazinesmotion picturesmass culturetelevisionsatelliteInternetBarry AlldisinvokingdialogueplethorabroadcastingReginald FessendenReginald Fessendenradio amateursUnited StatesCharles (“Doc”) HerroldconjunctionhobbyWorld War IwidespreadHerroldAmateursproficientBritannica Quiz Communications Firsts QuizNetherlandsnews agencyCanadasponsoredPuerto RicoNew ZealandInterior of the KDKA “radio shack”amateur operationsHerroldUniversity of WisconsintelegraphMorse CodeKDKAcitedWestinghouseGeneral ElectricRadio Corporation of AmericaRCAThe Detroit NewscommunitySUBSCRIBE Slowly, other American stations took to the air, often as auxiliariesdelugeadvertisingmicrophoneenthralledSoviet UnionItalyHomer HaynesJim BackusCharles J. CorrellDon AmecheRay Gouldingbroadcastingradio technologymass communicationprogrampublic-service radioSocial Sci LibreTexts - Evolution of Radio BroadcastingSee all related contentutilizeprogramRandy SkretvedtChristopher H. Sterling

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