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Proceedings of the Institute of Radio Engineers

Issue 1 • Date Feb. 1921

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Displaying Results 1 - 14 of 14
  • [Front cover]

    Publication Year: 1921, Page(s):c1 - c2
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  • Proceedings of the Institute of Radio Engineers, Volume 9 - 1921

    Publication Year: 1921, Page(s): nil1
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  • General Information

    Publication Year: 1921, Page(s): nil2
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  • Contents of Volume 9 - 1921

    Publication Year: 1921, Page(s):nil3 - nil4
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  • Contents

    Publication Year: 1921, Page(s): 1
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  • General Information

    Publication Year: 1921, Page(s): 1
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  • Officers and Board of Direction, 1921

    Publication Year: 1921, Page(s): 2
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  • A New System of Short Wave Amplification

    Publication Year: 1921, Page(s):3 - 11
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (936 KB)

    The various possible known methods of amplifying incoming signals of very short wave length (below 600 meters) are described and their limitations considered. The new method then described consists (for continuous wave reception) of the following steps:- 1. Heterodyning, with the production of a beat frequency which is itself a radio frequency (for example, 100,000 cycles per second). 2. Rectifica... View full abstract»

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  • Discussion

    Publication Year: 1921, Page(s):12 - 27
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  • The Relation between Atmospheric Disturbances and Wave Length in Radio Reception

    Publication Year: 1921, Page(s):28 - 35
    Cited by:  Papers (2)
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    The apparent wave length of atmospheric disturbances at different times of the day and year is studied, and the results obtained are shown graphically and by description. View full abstract»

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  • Discussion

    Publication Year: 1921, Page(s):36 - 40
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  • The Reduction of Atmospheric Disturbances in Radio Reception

    Publication Year: 1921, Page(s):41 - 55
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    The atmospheric disturbances of radio reception on the Atlantic Coast of the United States are classified as to type, effect, and proboble origin. The static reducing systems of the Marconi Company (Weagant system), and of the Navy (Austin, Taylor, and Otter Cliffs systems) are described; and relative performance data of these are given. The improvement in reliability of reception to be obtained b... View full abstract»

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  • The Magnetic Behavior of Iron in Alternating Fields of Frequencies between 100,000 and 1,500,000 Cycles

    Publication Year: 1921, Page(s):56 - 77
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2568 KB)

    Mild steel ribbon, 0.002 inch (0.05 mm.) in thickness, was tested at various radio frequencies between 100,000 and 1,500,000 cycles per second for the relation between ampere turns per centimeter and flux density, and for core loss in watts per cubic centimeter at the various frequencies. A vacuum tube oscillator supplied the necessary current for magnetizing the ring samples of steel. The method ... View full abstract»

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  • Discussion

    Publication Year: 1921, Page(s):78 - 80
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Aims & Scope

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

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