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Telecommunications media | Definition, Types, Examples, Technology, & 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 & CultureProConMoneyVideostelecommunications mediaIntroductionTransmission media and the problem of signal degradationWire transmissionWire mediaSingle-wire lineOpen-wire pairMultipair cableCoaxial cableApplications of wireRadio transmissionRadio-wave propagationAtmospheric propagationSurface propagationReflected propagationThe radio-frequency spectrumVLF-MFHFVHF-UHFSHF-EHFLine-of-sight microwave linksSatellite linksOptical transmissionThe free-space channelOptical fibre channelsElectro-optical transmittersOptoelectronic receiversOptical fibresReferences & Edit HistoryRelated TopicsImagesTechnologyThe Web & CommunicationFacebookXhttps://www.britannica.com/topic/telecommunications-mediaCell Press - Heliyon - Implementation of telecommunications cross-industry collaboration through agile project managementDigitalCommons at NYLS - Media and Telecommunications Regulation and The Internet: Regulate or Strangulate? (PDF)Alfred O. Hero Associate Professor of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor.Britannica 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....Historyradio wave dish-type antennassatellite radiofacilitatingmass communicationmass mediatelecommunications systemelectromagnetic signalenvironmentpropagatedegradationnoisedistortionattenuationDistortioncommunicationfidelitytelecommunication systemattenuationdissipationdecibelsattenuation spectrumWire transmissionPropagationelectric currentresistancecutaway drawings of multipair and coaxial cablesbundledcopperwireelectrical resistancetensile strengthtelegraphlightningaurorascircuitSUBSCRIBE Open-wire pair In order to overcome the insufficiencies of single-wire transmission, the early telephone industry shifted to a two-wire system called the open-wire pair. In an open-wire pair the forward and return conductors are copper wires that run in parallel and in a common plane. The parallel arrangement produces a balanced transmission circuitadjacentMultipair cablecircuitscomputerbalanced circuitCoaxial cablecoaxial cableelectromagnetic fieldpropagatesattenuationinherentrepeaterselectrical impedanceohmsattenuationconsortiumAmerican Telephone & Telegraph CompanyAT&Tfibre-opticfibre-opticbandwidthcable televisionlocal area network

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