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Proceedings of the Institute of Radio Engineers

Issue 9 • Date Sept. 1930

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  • [Front cover]

    Publication Year: 1930, Page(s): c1
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  • Institute of Radio Engineers - Forthcoming Meetings

    Publication Year: 1930, Page(s): c2
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  • Contents

    Publication Year: 1930, Page(s): i
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  • General Information

    Publication Year: 1930, Page(s): ii
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  • Suggestions for Contributors to the Proceedings

    Publication Year: 1930, Page(s): iii
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  • Institute sections

    Publication Year: 1930, Page(s): iv
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  • Geographical Location of Members Elected August 6, 1930

    Publication Year: 1930, Page(s):v - vi
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  • Applications for Membership

    Publication Year: 1930, Page(s):vii - viii
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  • Officers and Board of Direction, 1930

    Publication Year: 1930, Page(s): ix
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  • Irving Langmuir

    Publication Year: 1930, Page(s):1466 - 1467
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  • Institute news and radio notes

    Publication Year: 1930, Page(s):1469 - 1479
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  • Errata

    Publication Year: 1930, Page(s): 1480
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  • Long Wave Radio Receiving Measurements at the Bureau of Standards in 1929

    Publication Year: 1930, Page(s):1480-a - 1487
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    This paper gives monthly averages of daylight signal intensity at Washington for 1929, as received from a number of European and American low-frequency stations. Several of the stations formerly measured have ceased to transmit regularly at hours sutitable for all-daylight transmission paths and their measurement has therefore been discontinued. The annual average field intensities of the European... View full abstract»

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  • Low-Frequency Radio Transmission

    Publication Year: 1930, Page(s):1488 - 1501
    Cited by:  Papers (4)
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    This paper presents the results of field intensity measurements on low-frequency transmission (17.8 kc) from the R.C.A. station WCI, located a, Tuckerton, N.J. The results of observations made at Newton Centre and at Medfordt Mass., are presented. Apparatus for alternating antenna observations with variously oriented loop observations is described and the results of such measurements are presented... View full abstract»

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  • Certain Factors Affecting the Gain of Directive Antennas

    Publication Year: 1930, Page(s):1502 - 1536
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5720 KB)

    This paper analyzes the performance of antenna arrays as influenced by certain variables within the control of the designing engineer. It starts with an extremely simple analysis of the interfering effects produced by two sources of waves of the same amplitude. This is followed by a short discussion of a paper by Ronald Foster, which considers two antennas and also 16 antennas when arranged in lin... View full abstract»

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  • Radio Electric Clock System

    Publication Year: 1930, Page(s):1537 - 1559
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3616 KB)

    This paper describes briefly a clock system which employs radio time signals from a government station to correct automatically an electric clock system. As interference is the usual limitation of a system of this sort, special emphasis has been placed upon the pulse amplifier, by means of which pulses of a periodic character are amplified with an extremely high selectivity against interference. T... View full abstract»

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  • A New Frequency-Stabilized Oscillator System

    Publication Year: 1930, Page(s):1560 - 1574
    Cited by:  Papers (3)
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    A new vacuum-tube self-oscillating system having extraordinary frequency stability is described which depends on the reëntrant circulation of oscillations through tuned filter or coupling units. The reëntrant circulation through the filter sections attenuates all but a single frequency in a manner analogous to the attenuation produced by a filter system having an infinite number of secti... View full abstract»

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  • Interpolation Methods for Use with Harmonic Frequency Standards

    Publication Year: 1930, Page(s):1575 - 1585
    Cited by:  Papers (1)
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    Interpolation methods for determining the value of an unknown frequency in terms of harmonic standard frequencies are discussed under the following classifications: I. Direct beating methods, wherein the beat between known and unknown frequencies is utilized directly to operate frequency indicators or measuring devices. II. Direct interpolation methods in which the fundamental frequency of an inte... View full abstract»

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  • A Precise and Rapid Method of Measuring Frequencies from Five to Two Hundred Cycles Per Second

    Publication Year: 1930, Page(s):1586 - 1592
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (712 KB)

    After a brief discussion of some of the common methods of measuring frequencies from 0 to 200 cycles, a method is described which offers important advantages, combining a high degree of accuracy with ease and rapidity of use. The method depends on the fact that if a condenser be discharged through a resistance f times per second (the condenser being charged to the same initial voltage each time), ... View full abstract»

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  • A Note on the Mathematical Theory of the Multielectrode Tube

    Publication Year: 1930, Page(s):1593 - 1602
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (688 KB)

    The expression for the a-c current (rather the change in current due to applied a-c voltages) in any electrode is expanded in an ascending power series in terms of all the applied a-c voltages. It is shown that the coefficients in these series must satisfy a number of systems of linear simultaneous equations (one system for each power and frequency of the terms), and that hence to obtain the coeff... View full abstract»

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  • Book review

    Publication Year: 1930, Page(s): 1603
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  • Bookelts, catalogs, and pamphlets received

    Publication Year: 1930, Page(s):1604 - 1605
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  • References to current radio literature

    Publication Year: 1930, Page(s):1606 - 1610
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (619 KB)

    This is a monthly list of references prepared by the Bureau of Standards and is intended to cover the more important papers of interest to the professional radio engineer which have recently appeared in periodicals, books, etc. The number at the left of each reference classifies the reference by subject, in accordance with the scheme presented in "A Decimal Classification of Radio Subjects - An Ex... View full abstract»

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  • Contributors to this issue

    Publication Year: 1930, Page(s):1611 - 1612
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Aims & Scope

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

Full Aims & Scope