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Proceedings of the Institute of Radio Engineers

Issue 12 • Date Dec. 1935

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  • [Front cover]

    Publication Year: 1935, Page(s): c1
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  • Institute of Radio Engineers - Forthcoming Meetings

    Publication Year: 1935, Page(s): c2
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  • Contents

    Publication Year: 1935, Page(s): i
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  • General Information

    Publication Year: 1935, Page(s): ii
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  • Institute sections

    Publication Year: 1935, Page(s): iii
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  • Geographical Location of Members Elected November 6, 1935

    Publication Year: 1935, Page(s): iv
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  • Applications for Membership

    Publication Year: 1935, Page(s): v
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  • Officers and Board of Directors

    Publication Year: 1935, Page(s): vi
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  • Alfred Henry Grebe

    Publication Year: 1935, Page(s): 1412
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  • Institute news and radio notes

    Publication Year: 1935, Page(s):1413 - 1424
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  • Automatic Selectivity Control

    Publication Year: 1935, Page(s):1425 - 1440
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1712 KB)

    A receiving system is described in which the selectivity automatically varies with the sensitivity. The variation in selectivity is obtained through the use of several triodes whose plate-to-cathode impedance is shunted across a number of the receiver tuned circuits. The circuits with which these selectivity control tubes are associated are described. Circuit diagrams illustrate the method by whic... View full abstract»

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  • Photoradio Apparatus and Operating Technique Improvements

    Publication Year: 1935, Page(s):1441 - 1482
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (8312 KB)

    A brief review of photoradio inception and progress up to 1928 is included in the introductory part of the paper. Improvements to terminal equipment which make possible greater fidelity of half-tone transmission over long-distance radio circuits are described. Radio circuit distortion is discussed and compensation methods suggested. A mathematical analysis of the photoradio keying is appended. View full abstract»

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  • Notes on Intermediate-Frequency Transformer Design

    Publication Year: 1935, Page(s):1483 - 1491
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    A method of determining coil or condenser merit is cited. The more usual types of intermediate-frequency transformer assemblies are described. Formulas are given for predicting gain and selectivity. Frequent difficulties in composite amplifiers are mentioned. A method of obtaining high fidelity is described in detail. View full abstract»

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  • The Ionosphere, Skip Distances of Radio Waves, and the Propagation of Microwaves

    Publication Year: 1935, Page(s):1492 - 1506
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1432 KB)

    A detailed description of the ionosphere is given based on the recent measurements of the National Bureau of Standards and the Department of Terrestrial Magnetism of the Carnegie Institution. From the ionosphere data the skip distances of radio waves are calculated for temperature and tropical zones, with the diurnal and seasonal changes. The values agree with the observed values as far as they ar... View full abstract»

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  • Ultra-Short-Wave Propagation over Land

    Publication Year: 1935, Page(s):1507 - 1535
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3784 KB)

    From theoretical considerations it is found that for ultra-short-wave propagation over level terrain, the received field should equal 4π times the product of the antenna heights divided by the product of the wavelength and the distance times the field that would be received for transmission in free space. This equation has been checked experimentally for horizontal polarization, antenna heigh... View full abstract»

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  • A Quantitative Study of the Dynatron

    Publication Year: 1935, Page(s):1536 - 1566
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2904 KB)

    This paper describes two methods of predicting the performance of a dynatron oscillator. The use of the Massachusetts Institute of Technology differential analyzer is the first method described. This machine has been used to determine the amplitude of oscillation and harmonic content of a type '24 tube dynatron oscillator for various conditions. A corresponding experimental study is presented in t... View full abstract»

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  • Book reviews

    Publication Year: 1935, Page(s):1567 - 1568
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  • Bookelts, catalogs, and pamphlets

    Publication Year: 1935, Page(s): 1569
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  • Contributors to this issue

    Publication Year: 1935, Page(s):1570 - 1571
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  • Incorrect Addresses

    Publication Year: 1935, Page(s):vii - viii
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Aims & Scope

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

Full Aims & Scope