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Radio Engineers, Proceedings of the Institute of

Issue 9 • Date Sept. 1931

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Displaying Results 1 - 25 of 27
  • [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 August 2, 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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  • G.A. Ferrie - Recipient of Institute Medal of Honor, 1931

    Publication Year: 1931 , Page(s): 1522
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  • Institute news and radio notes

    Publication Year: 1931 , Page(s): 1523 - 1528
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  • Radio Tracking of Meteorological Balloons

    Publication Year: 1931 , Page(s): 1529 - 1560
    Cited by:  Papers (1)
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    There is a need for upper air meteorological observation at night as well as in the daytime, in cloudy and in foggy weather as well as in clear. This need has given rise to a number of interesting methods of obtaining these data, among them radio tracking of meteorological balloons. A free balloon moves in the air current prevailing at the level it occupies. A small rubber balloon, six inches or l... View full abstract»

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  • Some Characteristics of Thyratrons

    Publication Year: 1931 , Page(s): 1561 - 1568
    Cited by:  Papers (1)
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    The fundamental characteristics of thyratrons are discussed. Comparisons are made with characteristics of high-vacuum tubes to show the outstanding advantages and limitations of the thyratron. Starting characteristics are discussed and typical examples are shown. Several types and sizes of thyratrons are described briefly. View full abstract»

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  • Twenty-Watt Aircraft Transmitter

    Publication Year: 1931 , Page(s): 1569 - 1578
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    A transmitter for aircraft employing cw telegraph signals only is unusually effective in performance and economical in operation. By employing a special method of screen-grid modulation, phone signaling can be provided for use when phone signaling is most needed-namely, when flying in the vicinity of airports-with almost negligible additions to the cw transmitter. A rapid transfer of information i... View full abstract»

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  • A Course Indicator of Pointer Type for the Visual Radio Range Beacon System

    Publication Year: 1931 , Page(s): 1579 - 1605
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    A form of tuned-reed radio range beacon course indicator is described, called a reed converter, in which the course indications are not given by observing the two reed motions as heretofore, but by means of a zero-center pointer type indicating instrument. The motion of the two reeds generates small alternating voltages, which when rectified by oxide rectifiers and passed in opposing polarities th... View full abstract»

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  • Some Acoustical Problems of Sound Picture Engineering

    Publication Year: 1931 , Page(s): 1606 - 1614
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    The purpose of this paper is to point out that many advances in acoustical engineering have been necessary in order to understand and control adequately the conditions under which modern sound pictures are recorded and reproduced. To illustrate this point, some of the acoustical problems encountered at Bell Telephone Laboratories are discussed. The sudden and successive changes in sound intensity ... View full abstract»

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  • A Method of Representing Radio Wave Propagation Conditions

    Publication Year: 1931 , Page(s): 1615 - 1617
    Cited by:  Papers (3)
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    The daylight radio transmission conditions across the North Atlantic Ocean in 1930 for wavelengths of 10,000 to 20,000 m (15-30 kc) are shown in a table based on the daily observations of the signal strength of seven European high power stations taken in Washington. It is expected that similar tables of daily transmission conditions for the years beginning with 1924 will soon be ready for publicat... View full abstract»

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  • Use of Automatic Recording Equipment in Radio Transmission Research

    Publication Year: 1931 , Page(s): 1618 - 1633
    Cited by:  Papers (1)
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    This is an apparatus paper describing equipment recently developed for low frequency (17.8 kc); intermediate frequency (770 kc); and high frequency (6942.5 kc) field intensity recording. The circuits employed are presented and discussed with particular reference to expedients for obtaining nearly logarithmic scales (when used with Leeds and Northrup recording potentiometers). Typical records obtai... View full abstract»

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  • The Propagation of Short Radio Waves over the North Atlantic

    Publication Year: 1931 , Page(s): 1634 - 1659
    Cited by:  Papers (8)
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    Transmission conditions for each season are shown by "surfaces" giving the received field strength as a function of time of day and frequency. These show that frequencies near 18 mc are best for daytime transmission. In summer the best frequencies for nighttime transmission are those near 9 mc. In winter an additional frequency near 6 mc is required during the middle of the night. A frequency (suc... View full abstract»

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  • Long-Distance Transmission of Static Impulses

    Publication Year: 1931 , Page(s): 1660 - 1662
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    First Page of the Article
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  • The Relation Connecting Skip Distance, Wavelength, and the Constants of the Ionized Layers

    Publication Year: 1931 , Page(s): 1663 - 1674
    Cited by:  Papers (1)
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    Neglecting the short-range ground ray, it is assumed that short-wave propagation is due to single or multiple total reflection between the earth and one or more ionized layers in the atmosphere. For single reflection at a single layer an equation is developed giving the wavelength in terms of the skip distance, the height of the layer and the degree of ionization of the layer. The curve represente... View full abstract»

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  • A Correlation of Long-Wave Radio Field Intensity with the Passage of Storms

    Publication Year: 1931 , Page(s): 1675 - 1683
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    Variation in received field intensity of long radio waves is compared with variation of temperature, pressure, and rainfall during the passing of general storms at Washington. The results show that in general there is a definite falling off in signal intensity in front of the advancing low. This is followed by an increased intensity which persists from one to two days after the storm center passes... View full abstract»

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  • The Grounded Condenser Antenna Radiation Formula

    Publication Year: 1931 , Page(s): 1684 - 1689
    Cited by:  Papers (7)
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    Exact formulas for the wave function and vertical electric field at the surface of the ground are derived for a vertical dipole of zero height. View full abstract»

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  • Book reviews

    Publication Year: 1931 , Page(s): 1690
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  • Booklets, catalogues, and pamphlets received

    Publication Year: 1931 , Page(s): 1691
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Aims & Scope

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

Full Aims & Scope