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Proceedings of the Institute of Radio Engineers

Issue 6 • June 1928

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  • [Front cover]

    Publication Year: 1928, Page(s):c1 - c2
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  • Suggestions for Contributors to the Proceedings

    Publication Year: 1928, Page(s): x
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  • Contents

    Publication Year: 1928, Page(s): 695
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  • General Information

    Publication Year: 1928, Page(s): 695
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  • Officers and Board of Direction, 1928

    Publication Year: 1928, Page(s):696 - 697
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  • Institute sections

    Publication Year: 1928, Page(s): 698
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  • Ray H. Manson - Member of Board of Direction of the Institute, 1928

    Publication Year: 1928, Page(s):700 - 701
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  • Contributors to this issue

    Publication Year: 1928, Page(s):702 - 703
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  • Institute activities

    Publication Year: 1928, Page(s):704 - 714
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  • Beam Transmission of Ultra Short Waves

    Publication Year: 1928, Page(s):715 - 740
    Cited by:  Papers (126)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4496 KB)

    Part I of this paper is devoted to a description of various experiments performed at wavelengths below 200 cm. Curves are given to show the effect of the earth and various types of inductively excited antennas called "wave directors." Part I is concluded with a discussion of beam and horizontally polarized radiation. Part II is devoted chiefly to the magnetron tubes used for the production of very... View full abstract»

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  • Discussion

    Publication Year: 1928, Page(s):740 - 741
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  • The Piezo-Electric Resonator and Its Equivalent Network

    Publication Year: 1928, Page(s):742 - 764
    Cited by:  Papers (44)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2472 KB)

    The theory of the piezo-electric and the mechanical behavior of a quartz resonator is stated following Voight and Cady. The functions of the quartz as dielectric and as vibrator are shown to be separable and replaceable by a condenser in parallel with an electrical resonator, i.e., a series chain of inductance, resistance, and capacity. For a Curie-cut quartz rod excited lengthwise through the tra... View full abstract»

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  • Some Correlations of Radio Reception with Atmospheric Temperature and Pressure

    Publication Year: 1928, Page(s):765 - 772
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    Night reception and temperature at the receiver are found directly related, maximum reception being associated with maximum temperatures and vice versa. This is the reverse of the relation previously found by Austin for day reception, where falling temperature improved reception, and is therefore another case of the already established inverse relation of night to day reception. The temperature ef... View full abstract»

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  • Technical Considerations Involved in the Allocation of Short Waves; Frequencies between 1.5 and 30 Megacycles

    Publication Year: 1928, Page(s):773 - 777
    Cited by:  Papers (2)
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    First Page of the Article
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  • The Navy's Primary Frequency Standard

    Publication Year: 1928, Page(s):778 - 793
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3064 KB)

    In this paper is described a constant frequency source which is used as the Navy's primary working standard of frequency. This frequency source is a crystal-controlled oscillator of special design which was developed at the U.S. Naval Research Laboratory, Washington, D.C. This oscillator employs a type of circuit which is rich in harmonics, over 200 of which may be used as fixed standard frequenci... View full abstract»

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  • A Transmitter Modulating Device for the Study of the Kennelly-Heaviside Layer by the Echo Method

    Publication Year: 1928, Page(s):794 - 798
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (904 KB)

    The importance is emphasized of sending out "peaks" of very short duration and proper spacing for the study of the radio reflections from the ionized layer in the upper atmosphere by the echo method, and objections to modified alternating-current modulation are pointed out. A method is outlined for modulating the transmitter, based on the sudden pulses of plate-current which occur in an unbalanced... View full abstract»

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  • A Compensated Electron-Tube Voltmeter

    Publication Year: 1928, Page(s):799 - 801
    Cited by:  Papers (2)
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    First Page of the Article
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  • Note on the Effective Heating of Code Transmitters

    Publication Year: 1928, Page(s):802 - 804
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    By considering the frequency of letters and words in the English language it is found that in slow speed transmission of code using the theoretical spacing, the transmitter is in operation only 46.5 per cent of the time. A transmitter can accordingly be given a power rating for code that is 2.15 times the rating of the same equipment when operating continuously, on the basis of the same operating ... View full abstract»

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  • Four-Element Tube Characteristics as Affecting Efficiency

    Publication Year: 1928, Page(s):805 - 821
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1600 KB)

    The variation in the ratio of grid and plate current of three-electrode vacuum tubes aroused considerable curiosity and the tests reported in this paper were undertaken in an endeavor to ascertain the laws of current division. It was found that in a tube having symmetrical electrodes, that is, straight wire filament, concentric cylindrical anode and cylindrical grid, made up of wires parallel to t... View full abstract»

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  • Detection with the Four-Electrode Tube

    Publication Year: 1928, Page(s):822 - 839
    Cited by:  Papers (4)
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    A mathematical analysis of plate rectification is presented. Results of this analysis are applied to the screen-grid tube of the type Cunnningham CX-322. Experimental data verifying the mathematical analysis as applied to the CX-322 are presented. The results show that the screen-grid detector tube under proper conditions will efficiently utilize the high radio-frequency voltage obtained with the ... View full abstract»

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  • The Screen-Grid Tube

    Publication Year: 1928, Page(s):840 - 843
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (536 KB)

    Radio-frequency amplification by means of the three-electrode tube is usually disappointing. With resistance coupling the feedback through the tube is in such a phase relation to the input voltage as to reduce the amplification below that given by the simple equation for voltage amplification. With impedance coupling the feed-back causes self-oscillations when the circuit conditions are such as mi... View full abstract»

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  • Discussion on The Measurement of Choke Coil Inductance (C.A. Wright and F.T. Bowditch)

    Publication Year: 1928, Page(s):844 - 847
    Cited by:  Papers (1)
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  • Discussion on On the Distortionless Reception of a Modulated Wave and Its Relation to Selectivity (F. K. Vreeland)

    Publication Year: 1928, Page(s):848 - 850
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  • Book review

    Publication Year: 1928, Page(s): 851
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  • Geographical Location of Members Elected May 2, 1928

    Publication Year: 1928, Page(s):852 - 853
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Aims & Scope

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

Full Aims & Scope