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[[Fasciculus:Shortwave Radio.jpg|300px|thumb|Radiophonum undae brevis accepiendae potis.]]
'''Radiophonia''' est [[technologia]] qua enuntiationes, in primis [[homo|hominum]] voces, per undas radiophonicas transferre licet. Radiis electromagneticiis modo proprio mutandis, ceu amplitudine sive numero agitationum, indicia portari possunt. Cum [[unda radioelectrica|undae radioelectricae]] [[conductorium]] accesserunt, campis agitantibus in conductorio fluentum alternum incitantur, quod observari potest atque in [[sonus|sonum]] sive notitias alias converti.
==Series radiophonicae==
===Unda media===
Series nomine unda media vocantur quae per [[spectrum electromagneticum]] intra frequentias 535 usque ad 1705 chiliohertziorum signa emittit. Haec frequentiarum series etiam AM consuetudine appellatur, quia technologia modulationis amplitudinis adhibetur ad emissiones mittendas et accipiendas. [[Nox|Nocte]] quam interdiu emissiones intra undam mediam ulterius transgredi possunt, quod interdie per undam terrestrem sed nocte per caelestem currunt.
Quae modulatione amplitudinis utuntur, sunt, sensu stricto, gradualitates sive genera [[tres|tria]]: unda minor, unda media, unda brevis.
===
Series
Quoniam undae breves Iontosphaera resonantur, quo aggredi nequeant locus in orbe terrarum est nullus. Quae res emittendi nomine unda caelestis appellatur. Accipiendarum facultas per undam brevem emissionum in aeris statu mutationibusque persaepe consistit. Norma exstat, per exemplum, qua frequentiae die superiores nocteque inferiores quam 12 megahertziorum melius accipi soleant. Eius rei causa sic afferatur, ut interdie intra Ionosphaerae partem quandam [[atomus|atomi]] in electronia fragantur solis photoniis. Itaque frequentiae quam 12 megahertziorum inferiores longe transgredi non possunt.
=== Frequentiae Modulatio (FM) ===
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== Genera Radiophonorum ==
[[
=== Radiophona Tubularia ===
Radiophona tubularia tubulis aeris vacuis conficiuntur.
===
[[Fasciculus:Sony-walkman-srfs84s 0001.JPG|thumb|Radiophonum transistoriale quod SONY ad [[commercium]] introduxit anno [[2001]].]]
Anno [[1960]], [[Sony]], mercatoria domus, radiophona transistorialia venumdare coepit. Recentes hae fabricae technologiam transistrorum contribuerunt ad rationem radiophonorum fabricandorum. Ante [[transistrum]] inventum, confectores radiophonorum plerumque tubulis [[vitrum|vitreis]] usi erant. Transistro ita adhibito, radiophona construi magnitudine minora ac duriora munitione quam prius possunt. Tum demum radiophona fiebant gestabilia. Haec antea, cum portari posse referantur, tamen erant paene ampliora quam plerique portare volebant
==Vide etiam==
* [[Radiophonum]]
* [[Statio radiophonica]]
==Bibliographia==
* Aitkin, Hugh G. J. [[1985]]. ''The Continuous Wave: Technology and the American Radio, 1900-1932.'' Princeton University Press.
* Anderson, Leland I., ed. [[1986]], "[http://www.tfcbooks.com/mall/more/436ntpr.htm John Stone Stone, Nikola Tesla's Priority in Radio and Continuous-Wave Radiofrequency Apparatus]." ''The AWA Review,'' 1, 24 paginae.
* [[Asa Briggs|Briggs, Asa]]. [[1961]]. ''The History of Broadcasting in the United Kingdom.'' Oxford University Press.
* {{cite book
| last = Buga
| first = N.
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| coauthors = Falko A., Chistyakov N. I.
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| editor = Chistyakov N. I.
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| others = Conversus ex Russico a Boris V. Kuznetsov
| title = Radio Receiver Theory
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| year = [[1990]]
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| publisher = Mir Publishers
| location = Moscuae
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| isbn = 5-03-001321-0
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| postscript = First published in Russian as «Радиоприёмные устройства»
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* Cockaday, L. M. [[1922]]. [http://books.google.com/books?id=8x5IAAAAIAAJ Radio-telephony for everyone; the wireless: how to construct and maintain modern transmitting and receiving apparatus]. Novi Eboraci: Frederick A. Stokes.
* Da Silva, E. [[2001]]. High frequency and microwave engineering. Oxford: Butterworth-Heinemann.
* [[Ioannes Dunning (scriptor)|John Dunning]]. [[1998]]. ''On the Air. The Encyclopedia of Old-Time Radio''. Novi Eboraci, Oxoniae: Oxford University Press. ISBN 0-19-507678-8
* Ewbank, Henry, et Sherman P. Lawton. [[1952]]. ''Broadcasting: Radio and Television.'' Harper & Brothers.
* Fisher, Marc. [[2007]]. ''Something In The Air: Radio, Rock, and the Revolution That Shaped A Generation.'' Novi Eboraci: Random House.
* Hausmann, E., Goldsmith, A. N., Hazeltine, L. A., Hogan, J. V. L., Morecroft, J. H., Canavaciol, F. E., et al. [[1922]]. [http://books.google.com/books?id=6qFRAAAAMAAJ Radio phone receiving; a practical book for everybody]. Novi Eboraci: D. Van Nostrand.
* Lauer, H., & Brown, H. L. [[1920]]. [http://books.google.com/books?id=zhdDAAAAIAAJ Radio engineering principles]. Novi Eboraci: McGraw-Hill book company.
* Lewis, Tom. [[1991]]. ''Empire of the Air: The Men Who Made Radio.'' Ed. 1a. Novi Eboraci: E. Burlingame Books. ISBN 0-06-018215-6.<!-- "[[Empire of the Air: The Men Who Made Radio]]" (1992) by [[Ken Burns]] was a PBS documentary based on the book.-->
* Maclaurin, W. Rupert. [[1949]]. ''Invention and Innovation in the Radio Industry.'' Macmillan.
* Mills, J. [[1917]]. [http://books.google.com/books?id=TZREAAAAIAAJ Radio communication, theory and methods, with an appendix on transmission over wires]. Novi Eboraci: McGraw-Hill.
* Ray, William B. [[1990]]. ''FCC: The Ups and Downs of Radio-TV Regulation.'' Iowa State University Press.
* Rohde, Ulrich L., et Jerry Whitaker. [[2001]]. ''Communications Receivers.' Ed. 3a. Novi Eboraci: McGraw Hill. ISBN 0-07-136121-9.
* Russo, Alexander. [[2010]]. ''Points on the Dial: Golden Age Radio Beyond the Networks.'' Duke University Press.
* Scannell, Paddy, et David Cardiff. [[1991]]. ''A Social History of British Broadcasting.'' Vol. 1, 1922-1939. Basil Blackwell.
* Schwoch, James. [[1990]]. ''The American Radio Industry and Its Latin American Activities, 1900-1939.'' University of Illinois Press.
* Sewall, C. H. [[1904]]. [http://books.google.com/books?id=3hZDAAAAIAAJ Wireless telegraphy: its origins, development, inventions, and apparatus]. Npvo Eboraci: D. Van Nostrand.
* Smith, Clint, et Curt Gervelis. [[2003]]. [http://books.google.com/books?id=nZAVGBoPevUC&pg=PA25&lr=&as_brr=3&ei=F4-sSKuzO6XmtgO4393BBA&sig=ACfU3U0g0vtYCOzP0LCCzdRfr7bgKwvTNg#PPA24,M1 Wireless Network Performance Handbook.] McGraw-Hill Professional. ISBN 0-07-140655-7.
* [[Christopher H. Sterling|Sterling, Christopher H.]], et Michael C. Keith, eds. [[2004]]. ''Encyclopedia of Radio.'' 3 voll. Novi Eboraci, Londinii: Dearborn
* White, Llewellyn. [[1947]]. ''The American Radio.'' Sicagi: University of Chicago Press.
==Nexus externus==
{{commonscat|Radio|radiophoniam}}
[[Categoria:Radiophonia|!]]
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