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Proceedings of the Institute of Radio Engineers

Issue 12 • Date Dec. 1931

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  • [Front cover]

    Publication Year: 1931, Page(s): c1
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  • Future Events

    Publication Year: 1931, Page(s): c2
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  • Contents

    Publication Year: 1931, Page(s): i
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  • General Information

    Publication Year: 1931, Page(s): ii
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  • Suggestions for Contributors to the Proceedings

    Publication Year: 1931, Page(s): iii
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  • Institute sections

    Publication Year: 1931, Page(s): iv
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  • Geographical Location of Members Elected November 4, 1931

    Publication Year: 1931, Page(s):v - vi
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  • Applications for Membership

    Publication Year: 1931, Page(s):vii - viii
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  • Officers and Board of Direction, 1931

    Publication Year: 1931, Page(s): ix
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  • Harry W. Houck - Manager, 1931

    Publication Year: 1931, Page(s): 2048
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  • Institute news and radio notes

    Publication Year: 1931, Page(s):2049 - 2059
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  • Constant Frequency Oscillators

    Publication Year: 1931, Page(s):2061 - 2094
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3048 KB)

    The manner in which the frequency of vacuum tube oscillators depends upon the operating voltages is discussed. The theory of the dependence is derived and is shown to indicate methods of causing the frequency to be independent of the operating voltages. These methods are applied in detail to the more commonly used oscillator circuits. Experimental data are cited which show the degree of frequency ... View full abstract»

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  • A Recent Development in Vacuum Tube Oscillator Circuits

    Publication Year: 1931, Page(s):2095 - 2108
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1608 KB)

    A constant frequency oscillator, which depends for its operation upon the use of electron coupling between the oscillation generating portion of the circuit and the work circuit, is described. This form of coupling is employed to isolate the work circuit from the frequency determining portion of the system. The oscillator is of the two-anode type (UX-865) and it is shown that by suitable choice of... View full abstract»

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  • A New Treatment of Electron Tube Oscillators with Feed-Back Coupling

    Publication Year: 1931, Page(s):2109 - 2144
    Cited by:  Papers (1)
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    In an electron tube oscillator with feed-back coupling, the ratio Eg/Epmay be expressed as ϵ|i, in which ϵ and Φ are respectively called "excitation" and "phase difference." For the maintenance of self-oscillation it is absolutely necessary to have a correct Φ, and for the optimum intensity of self-oscillation there is usually a most favorable ϵ fo... View full abstract»

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  • Amplitude, Phase, and Frequency Modulation

    Publication Year: 1931, Page(s):2145 - 2176
    Cited by:  Papers (28)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2640 KB)

    This paper presents a comparative theoretical study of amplitude, phase, and frequency modulation. In the first part, the fundamental mathematical expressions for the three types of modulation are derived. They are expressed in three different forms: as amplitude equations, side band equations and modulation vector equations. The amplitude equations indicate the envelope of the radio-frequency dir... View full abstract»

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  • Application of Printing Telegraph to Long-Wave Radio Circuits

    Publication Year: 1931, Page(s):2177 - 2190
    Cited by:  Papers (2)
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    This paper describes certain arrangements which have been used for start-stop printing telegraph operation over a transatlantic long-wave radio channel and also describes results obtained from certain tests of long-wave teletypewriter transmission from Rocky Point, L. I., to Rochester, N.Y. A prediction of year-round results is obtainable by correlation of these test data with year-round noise mea... View full abstract»

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  • On Asymmetric Telegraphic Spectra

    Publication Year: 1931, Page(s):2191 - 2218
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    It is shown that single side band Morse transmission, if practicable, would relieve the present long-wave spectral congestion. Methods are developed whereby the wave shape of the single side band signals can be visualized when the original message envelope is given, and it is shown that the prolonged transmission of true single side band signals would in general necessitate the radiation of infini... View full abstract»

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  • Second Meeting of the International Technical Consulting Committee on Radio Communication, Copenhagen, 1931

    Publication Year: 1931, Page(s):2219 - 2249
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    The twenty-one opinions which were unanimously approved at the 1931 C.C.I.R. meeting are given together with fourteen questions for consideration at the third meeting to be held in Lisbon, Portugal, at a time to be specified later. A list of the members of the U. S. delegation is included. View full abstract»

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  • Book review

    Publication Year: 1931, Page(s): 2250
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  • Booklets, catalogs, and pamphlets received

    Publication Year: 1931, Page(s): 2251
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  • Radio abstracts and references

    Publication Year: 1931, Page(s):2252 - 2257
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  • Contributors to this issue

    Publication Year: 1931, Page(s): 2258
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  • Incorrect Addresses

    Publication Year: 1931, Page(s):xlvii - l
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Aims & Scope

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

Full Aims & Scope