The Origin and Development of Radiotelephony

Upon this, the Silver Anniversary of the Institute of Radio Engineers, it is appropriate to recall how there came into being the art of radiotelephony and, in turn, such services as overseas telephony and broadcasting. The Institute has seen the entire evolution within its relatively short life, with radiotelephony an unsolved problem in 1912 and today an accomplished fact of world-wide application. The pages of the Institute Proceedings testify to much of the building of the art, but nowhere has there been given a unified account of the structure as a whole and the relation of its technical substance to electric communications generally. To do this objectively and while the development is still fresh in mind is the purpose of the present paper. Naturally, the story is limited by space and by the information available to the writer. † Most of the account pertains to America. If the contributions of other countries are not adequately presented, it is because the limitations of time, space, and language have not yet been entirely overcome.

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[2]  J. R. Carson.  A Theoretical Study of the Three-Element Vacuum Tube , 1919, Proceedings of the Institute of Radio Engineers.

[3]  Bancroft Gherardi,et al.  Telephone repeaters , 1919, Proceedings of the American Institute of Electrical Engineers.

[4]  Edwin H Armstrong.  Operating features of the audion , 1917 .

[5]  C.W. Horn,et al.  Ten Years of Broadcasting , 1931, Proceedings of the Institute of Radio Engineers.

[6]  O. B. Blackwell,et al.  Carrier Current Telephony and Telegraphy , 1921, Transactions of the American Institute of Electrical Engineers.

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[8]  R. L. Jones,et al.  Air Transport Communication , 1930, Transactions of the American Institute of Electrical Engineers.

[9]  L. Espenschied,et al.  Radio Extension of the Telephone System to Ships at Sea , 1923, Proceedings of the Institute of Radio Engineers.

[10]  Lee De Forest.  The Audion; A New Receiver for Wireless Telegraphy , 1906 .

[11]  A. Meissner,et al.  The Development of Tube Transmitters by the Telefunken Company , 1922, Proceedings of the Institute of Radio Engineers.

[12]  F.M. Ryan,et al.  The Avalon-Los Angeles Radio Toll Circuit , 1921, Proceedings of the Institute of Radio Engineers.

[13]  Chester W. Rice,et al.  The wave antenna: A new type of highly directive antenna , 1923, Journal of the American Institute of Electrical Engineers.

[14]  Alexander Graham Bell,et al.  Upon the production and reproduction of sound by light , 1880 .

[15]  George D. Squier.  Multiplex telephony and telegraphy by means of electric waves guided by wires , 1911, Proceedings of the American Institute of Electrical Engineers.