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Proceedings of the Institute of Radio Engineers

Issue 7 • July 1938

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Displaying Results 1 - 18 of 18
  • [Front cover]

    Publication Year: 1938, Page(s): c1
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  • Institute of Radio Engineers - Forthcoming Meetings

    Publication Year: 1938, Page(s): c2
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  • Contents

    Publication Year: 1938, Page(s): i
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  • General Information

    Publication Year: 1938, Page(s): ii
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  • Institute sections

    Publication Year: 1938, Page(s): iii
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  • Geographical Location of Members Elected June 1, 1938

    Publication Year: 1938, Page(s): iv
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  • Applications for Membership

    Publication Year: 1938, Page(s): v
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  • Officers and Board of Directors

    Publication Year: 1938, Page(s): vi
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  • Institute news and radio notes

    Publication Year: 1938, Page(s):791 - 812
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  • Teledynamic Control by Selective Ionization with Application to Radio Receivers

    Publication Year: 1938, Page(s):813 - 830
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2112 KB)

    This paper concerns a new and improved method of remote control which may be applied to electrical devices of any sort. Special attention is given to the exposition of the basic principles of the system as applied to the remote control of radio receivers. The new control arrangement utilizes the alternating-current power line as a medium for transmission of control signals from a remote unit to th... View full abstract»

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  • The Relation between Radio-Transmission Path and Magnetic-Storm Effects

    Publication Year: 1938, Page(s):831 - 847
    Cited by:  Papers (1)
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    This paper presents the results of a quantitative study of the relationship between the proximity of great-circle transmission paths to the magnetic pole and of signal stability during terrestrial magnetic disturbances. Reception from Europe as observed at Riverhead, Long Island, and San Juan, Puerto Rico, is compared during normal and disturbed periods. The great-circle path from Europe to San Ju... View full abstract»

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  • A Direct-Reading Radio-Wave-Reflection-Type Absolute Altimeter for Aeronautics

    Publication Year: 1938, Page(s):848 - 858
    Cited by:  Papers (3)
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    Various theoretical and experimental researches have been carried out to indicate the absolute altitude of aircraft with respect to the ground by radio-wave-reflection methods. By using a new principle, frequency modulation (FM), the following results have been obtained: 1. Completely continuous indication of altitude by a steady pointer and dial is easily accomplished and altitude variations occu... View full abstract»

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  • Theory of the Diode Voltmeter

    Publication Year: 1938, Page(s):859 - 876
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1592 KB)

    The current-voltage characteristic of a diode can be expressed at low currents by an equation of the form i = GεkE. An analysis based on this relation shows that the rectification efficiency and input resistance of the usual form of gridleak-condenser diode circuit can be conveniently expressed entirely in terms of the grid-leak resistance R1, the amplitude of the impres... View full abstract»

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  • A Method of Designing Simulative Networks

    Publication Year: 1938, Page(s):877 - 891
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    In communication work it is often necessary to design a simple lumped network, the impedance of which approximates at all frequencies that of a certain distributed circuit, such as a transmission line. The present treatment includes a clarified method of making such a design. Former design methods have the common fault that negative circuit constants may be called for. This paper presents a simple... View full abstract»

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  • Abnormal Ionization in the E Region of the Ionosphere

    Publication Year: 1938, Page(s):892 - 908
    Cited by:  Papers (6)
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    Records of the field strength of 10-megacycle signals have been made at a distance of 30 kilometers from the transmitter. "Bursts" of received energy, of a few minutes' duration, were noted at times when no reflection from the F layer was present. When the density of ionization in the F layer was above the critical value for this frequency, occasional short periods of strong absorption at a low le... View full abstract»

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  • Characteristics of the Ionosphere at Washington, D.C., May, 1938

    Publication Year: 1938, Page(s):909 - 913
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (485 KB)

    Data on the ordinary-wave critical frequencies and virtual heights of the ionospheric layers are presented for the period indicated in the title. The monthly average values of the maximum usable frequencies for undisturbed days, for radio transmission by way of the regular layers is also provided. View full abstract»

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  • Booklets, catalogs and pamphlets received

    Publication Year: 1938, Page(s): 914
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  • Contributors to this issue

    Publication Year: 1938, Page(s):915 - 916
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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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