Proceedings of the Institute of Radio Engineers

Issue 4 • April 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 March 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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  • Committees of the Institute of Radio Engineers, 1935

    Publication Year: 1935, Page(s):vii - viii
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  • Institute news and radio notes

    Publication Year: 1935, Page(s):265 - 278
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  • The Application of Superheterodyne Frequency Conversion Systems to Multirange Receivers

    Publication Year: 1935, Page(s):279 - 294
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1640 KB)

    In this paper certain problems involved in the application of the superheterodyne circuit to high frequencies are discussed. The effects of coupling between oscillator and radio-frequency circuits are considered, and it is shown that such coupling may occur as the result of space-charge variations in the converter tube. The problem of noise reduction is considered. The means recommended for improv... View full abstract»

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  • A Study of Television Image Characteristics: Part Two: Determination of Frame Frequency for Television in Terms of Flicker Characteristics

    Publication Year: 1935, Page(s):295 - 310
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2320 KB)

    During 1931 and 1932 an investigation was carried out to obtain quantitative information on the several characteristics of television images. Part One of this paper covered those characteristics relating to image detail. This paper, Part Two, covers a determination of frame frequency in terms of flicker characteristics. The analysis is based on a number of simple tests largely in terms of equivale... View full abstract»

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  • General Considerations of Tower Antennnas for Broadcast Use

    Publication Year: 1935, Page(s):311 - 356
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4664 KB)

    The factors influencing the action of towers when used as radiators are considered. It is shown that the results predicted from the simple theory of sinusoidal distribution of current on the tower differ to a major extent from the actual results. A series of measurements using small models of actual antenna structures resulted in data correlating closely with the performance of the full-sized stru... View full abstract»

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  • Experiments with Directivity Steering for Fading Reduction

    Publication Year: 1935, Page(s):357 - 371
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2624 KB)

    Short-wave fading is largely due to phase interference between multiple path signals of varying path length. Fortunately, stable angular differences usually exist between these paths at the point of reception. It is therefore desirable to employ antenna directivity which is "steerable" and sufficiently sharp to accept only one of the several paths in order to reduce this fading. This paper describ... View full abstract»

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  • Steel-Cylinder Grid-Controlled Mercury-Arc Rectifiers in Radio Service

    Publication Year: 1935, Page(s):372 - 379
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1632 KB)

    This article describes a steel-cylinder grid-controlled mercury-arc rectifier as applied to radio transmitting service. The various parts of the rectifier cylinder are pointed out with reference to a picture of the rectifier unit. The use of mercury seals is described, and the operation of various auxiliaries such as vacuum pumps, vacuum meter, and ignition-excitation equipment is dealt with. Part... View full abstract»

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  • The Quadrature Oscillograph: An Electromechanical Device Having Two Degrees of Freedom

    Publication Year: 1935, Page(s):380 - 385
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1200 KB)

    An electromechanical oscillograph galvanometer has been developed which is capable of deflection along two mutually perpendicular sets of coordinate axes. For power and low audio frequencies, the instrument presents all of the possibilities inherent in a deflecting system of two degrees of freedom. View full abstract»

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  • A Determination of Some of the Properties of the Piezo-Electric Quartz Resonator

    Publication Year: 1935, Page(s):386 - 392
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (848 KB)

    Entirely consistent determinations of the logarithmic decrement of X-cut quartz rods whose natural frequencies are of the order of seventy kilocycles have been obtained during the last few years. The decrement is obtained from measurements on oscillographic records of the decay of the free vibrations of the resonator. The most extreme (lowest) values of decrement have been checked by an entirely i... View full abstract»

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  • Book reviews

    Publication Year: 1935, Page(s):393 - 394
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  • Bookelts, catalogs, and pamphlets received

    Publication Year: 1935, Page(s): 395
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  • Contributors to this issue

    Publication Year: 1935, Page(s): 396
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Aims & Scope

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

Full Aims & Scope