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Proceedings of the Institute of Radio Engineers

Issue 1 • Date Feb. 1925

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Displaying Results 1 - 12 of 12
  • [Front cover]

    Publication Year: 1925, Page(s):c1 - c2
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  • Contents

    Publication Year: 1925, Page(s): 1
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  • General Information

    Publication Year: 1925, Page(s): 1
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  • Officers and Board of Direction, 1925

    Publication Year: 1925, Page(s): 2
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  • A Suggestion for Experiments on Apparent Radio Direction Variations

    Publication Year: 1925, Page(s):3 - 4
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (208 KB)

    The author suggests the systematic investigation of apparent shifts in direction of transmitting stations as indicated on a loop receiver. He describes briefly some of the effects so far discovered. View full abstract»

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  • Recent Investigations on the Propagation of Electromagnetic Waves

    Publication Year: 1925, Page(s):5 - 27
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2312 KB)

    Since the summer of 1922, quantitative measurements have been carried out on the signal strengths of the American high power stations WQK and WSO, using an objective measuring method. The object of these measurements is to study the propagation of electromagnetic waves. It has been shown that these phenomena can be studied only by continued measurements. Curves are presented showing the field stre... View full abstract»

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  • The Marconi Marine Radio Direction Finder

    Publication Year: 1925, Page(s):29 - 47
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    A description of the circuits, construction, installation, and use of the Marconi Bellini-Tosi marine radio direction finder is given. The method of determining "sense" as well as "line of direction" of a distant station is explained. The various forms of errors in reading and the methods of reducing or eliminating these are discussed. The paper concludes with a description of a number of cases wh... View full abstract»

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  • Recent Developments in Vacuum Tube Transmitters

    Publication Year: 1925, Page(s):49 - 108
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (18688 KB)

    This paper describes a number of vacuum tube transmitters which have been developed and built during the past year, both for commercial use and the various governmental departments. It includes a discussion of the circuits utilized, and the reasons for adopting the present circuits in place of the former "antenna oscillators." The 20-kilowatt transmitters built for the United Fruit Company for ins... View full abstract»

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  • A Method of Measuring at Radio Frequencies the Equivalent Series Resistance of Condensers Intended for Use in Radio Receiving Circuits

    Publication Year: 1925, Page(s):109 - 121
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1816 KB)

    This paper shows the desirability of measuring at radio frequencies rather than at audio frequencies, the equivalent series resistance of radio receiving condensers. It further sets forth in detail a method of making such radio frequency measurements, and shows some preliminary results obtained from the application of this method. View full abstract»

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  • The "Pioneer Broadcaster"

    Publication Year: 1925, Page(s):123 - 124
    Cited by:  Papers (1)
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    First Page of the Article
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  • Discussion on "A Method of Measuring Very Short Radio Wave Lengths and Their Use in Frequcncy Standardization"

    Publication Year: 1925, Page(s):125 - 127
    Cited by:  Papers (1)
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  • Digests of United States Patents relating to radio telegraphy and telephony

    Publication Year: 1925, Page(s):129 - 147
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Aims & Scope

This Periodical ceased production in 1938. The current retitled publication is Proceedings of the IEEE.

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