Proceedings of the Institute of Radio Engineers

Issue 3 • March 1932

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Displaying Results 1 - 15 of 15
  • William Penn Hotel

    Publication Year: 1932, Page(s): 378
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  • Institute news and radio notes

    Publication Year: 1932, Page(s):379 - 404
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  • Operation of a Ship-Shore Radiotelephone System

    Publication Year: 1932, Page(s):405 - 433
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5360 KB)

    During the past two years, ship-shore radiotelephone service has been available with several of the large transatlantic liners. This service has been fairly reliable over distances up to about halfway across the Atlantic and some measure of service has been available all the way across. This paper reviews the essential physical and operating features of the land and ship terminals employed in givi... View full abstract»

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  • The Communication System of the Radiomarine Corporation of America

    Publication Year: 1932, Page(s):434 - 448
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    The coastal facilities and shipboard apparatus used in the communication system of the Radiomarine Corporation of America, are described in this paper. Long-range communication obtainable from ship to shore with moderate power at high frequencies has resulted in the development of several new types of short-wave transmitters. In addition to serving the marine field as an important communication fa... View full abstract»

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  • Characteristics of the UV-858 Power Tube for High-Frequency Operation

    Publication Year: 1932, Page(s):449 - 460
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    This paper indicates the need for high power vacuum tubes for high-frequency transmission, and discusses new factors most important in the design of a tube for this usage. Older types of tubes were built with high efficiency, low-frequency use in view, with the result that when applied to high frequencies they were severely limited by allowable operating voltage and by large internal capacitances ... View full abstract»

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  • Sensitivity Controls-Manual and Automatic

    Publication Year: 1932, Page(s):461 - 477
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1568 KB)

    Control of sensitivity is a problem that must go hand in hand with improvement in sensitivity. A highly sensitive receiver requires a total attenuation of as much as 160 db. Of this 80 db may be called "sensitivity control" which is that portion of control that permits a one-volt carrier to be received without demodulator overload. The remaining 80 db may be called "level control" with which the l... View full abstract»

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  • A Simultaneous Radiotelephone and Visual Range Beacon for the Airways

    Publication Year: 1932, Page(s):478 - 515
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (8440 KB)

    Increased use of the airway radio services by transport operators has resulted in a demand for continuous range beacon service. At the same time the weather broadcast information has increased in importance and the interruptions to the beacon service have become more frequent. To eliminate difficulties arising from this conflict, a transmitting system has been developed which provides simultaneous... View full abstract»

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  • A Mechanically Resonant Transformer

    Publication Year: 1932, Page(s):516 - 519
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    A transformer for use in the audio-frequency band is described whose output potential is remarkably selective to frequency. In its simplest form the diaphragm of a telephone receiver is replaced by a tuned reed of magnetic material. When a frequency is applied to the receiver corresponding to the natural frequency of the reed it is set in vibration and its motion is employed to generate potentials... View full abstract»

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  • Concerning the Influence of the Eleven-Year Solar Activity Period upon the Propagation of Waves in Wireless Telegraphy

    Publication Year: 1932, Page(s):520 - 539
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2056 KB)

    Researches concerning the propagation of short and border waves, conducted by the German Air-Travel Research Laboratory during the years 1930 and 1931, reveal results which are not quite in harmony with similar, but far more complete, investigations carried out in the years 1927-28. The suspicion arises that one is here dealing with an influence exerted by the eleven-year period of solar activity ... View full abstract»

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  • Preliminary Note on an Automatic Recorder Giving a Continuous Height Record of the Kennelly-Heaviside Layer

    Publication Year: 1932, Page(s):540 - 547
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2200 KB)

    This paper describes a preliminary installation of a continuous automatic recorder of virtual heights of the Kennelly-Heaviside layer. This installation requires that a chopper at the transmitter and a revolving mirror at the receiving station be driven by synchronous motors connected to the same power system. The group retardation method of Breit and Tuve is used with a few modifications which pe... View full abstract»

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  • The Operation of Vacuum Tubes as Class B and Class C Amplifiers

    Publication Year: 1932, Page(s):548 - 568
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1760 KB)

    A simple theoretical development of the action of a vacuum tube and its associated circuit when used as a class B or class C amplifier is given. An expression for the power output is obtained and the conditions for maximum output are indicated. The way in which the tuned plate circuit filters out the harmonics in the pulsating plate current wave is illustrated by a hypothetical example. A set of d... View full abstract»

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  • Further Notes on the Detection of Two Modulated Waves Which Differ Slightly in Carrier Frequency

    Publication Year: 1932, Page(s):569 - 578
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (824 KB)

    The present paper deals with the analysis of the detection of two modulated waves of slightly different carrier frequency under the conditions that the carrier amplitude of one wave is much smaller than that of the other and that the modulation of the larger wave is low. These conditions apply in determining the interference which arises during the operation of two broadcast stations on the same f... View full abstract»

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  • Book reviews

    Publication Year: 1932, Page(s): 579
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  • Radio abstracts and references

    Publication Year: 1932, Page(s):580 - 587
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  • Contributors to this issue

    Publication Year: 1932, Page(s):588 - 589
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Aims & Scope

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

Full Aims & Scope