By Topic

Proceedings of the Institute of Radio Engineers

Issue 3 • Date March 1930

Filter Results

Displaying Results 1 - 25 of 27
  • [Front cover]

    Publication Year: 1930, Page(s): c1
    Request permission for commercial reuse | PDF file iconPDF (550 KB)
    Freely Available from IEEE
  • Future Events

    Publication Year: 1930, Page(s): c2
    Request permission for commercial reuse | PDF file iconPDF (529 KB)
    Freely Available from IEEE
  • Contents

    Publication Year: 1930, Page(s): i
    Request permission for commercial reuse | PDF file iconPDF (93 KB)
    Freely Available from IEEE
  • General Information

    Publication Year: 1930, Page(s): ii
    Request permission for commercial reuse | PDF file iconPDF (136 KB)
    Freely Available from IEEE
  • Suggestions for Contributors to the Proceedings

    Publication Year: 1930, Page(s): iii
    Request permission for commercial reuse | PDF file iconPDF (114 KB)
    Freely Available from IEEE
  • Institute sections

    Publication Year: 1930, Page(s): iv
    Request permission for commercial reuse | PDF file iconPDF (69 KB)
    Freely Available from IEEE
  • Geographical Location of Members Elected February 6, 1930

    Publication Year: 1930, Page(s):v - vii
    Request permission for commercial reuse | PDF file iconPDF (333 KB)
    Freely Available from IEEE
  • Applications for Membership

    Publication Year: 1930, Page(s):viii - x
    Request permission for commercial reuse | PDF file iconPDF (315 KB)
    Freely Available from IEEE
  • Officers and Board of Direction, 1930

    Publication Year: 1930, Page(s): xi
    Request permission for commercial reuse | PDF file iconPDF (74 KB)
    Freely Available from IEEE
  • Committees of the Institute of Radio Engineers, 1930

    Publication Year: 1930, Page(s):xi - xiii
    Request permission for commercial reuse | PDF file iconPDF (179 KB)
    Freely Available from IEEE
  • Lieut. Col. A.G. Lee - Vice-President of the Institute, 1930

    Publication Year: 1930, Page(s): 364
    Request permission for commercial reuse | PDF file iconPDF (532 KB)
    Freely Available from IEEE
  • Institute news and radio notes

    Publication Year: 1930, Page(s):365 - 372
    Request permission for commercial reuse | PDF file iconPDF (818 KB)
    Freely Available from IEEE
  • Standardization in the Radio Vacuum-Tube Field

    Publication Year: 1930, Page(s):372-a - 390
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3112 KB)

    In vacuum-tube engineering the base dimensions, the filament voltage, plate voltage, and grid-bias voltage are the features that require standardization to the greatest degree. The history and present status of standardization of these features are given. Only tube types commonly used for broadcast reception and transmission are included. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Graphs to Prof. Sommerfeld's Attenuation Formula for Radio Waves

    Publication Year: 1930, Page(s):391 - 402
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1296 KB)

    The importance of close confrontation of Prof. Sommerfeld's attenuation formula with field-strength measurements is stressed. The fallacy of Prof. Zenneck's formula in most practical cases is pointed out, and a short summary given of Prof. Sommerfeld's conclusions, with approximate expressions for the "numerical distance" and the angle determining various shapes of theoretical attenuation curves. ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Radio Plant of R. C. A. Communications, Inc.

    Publication Year: 1930, Page(s):403 - 421
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5960 KB)

    The world-wide short-wave communication system of R. C. A. Communications, Inc., is described, and contrasted with the long-wave system which was the major means of long-distance radio communication six years ago. The details and effectiveness of the R. C. A. directive antenna systems for transmission and reception, developed for long-distance service, are shown by photographs and characteristic g... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 20-40-Kilowatt High-Frequency Transmitter

    Publication Year: 1930, Page(s):422 - 449
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (11784 KB)

    The rapid growth in the use of high frequencies for long-distance communication has been nothing short of phenomenal. One of the major parts of the high-frequency communication system is the transmitter converting 60-cycle power into a frequency in the order of millions of cycles. Although the first communication work on short waves was accomplished by the radiation of a few watts, reliable and ra... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Power Output Characteristics of the Pentode

    Publication Year: 1930, Page(s):450 - 470
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2672 KB)

    The type of pentode considered in this paper comprises a cathode, a control grid, a screen grid, a grid connected to the cathode to prevent the flow of secondary-electron current from the plate, and a plate. A quantity called the "power sensitivity" is defined as the square root of the power output divided by the effective value of the applied sinusoidal grid voltage. This quantity permits a direc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Report on Experiments with Electric Waves of about 3 Meters: Their Propagation and Use

    Publication Year: 1930, Page(s):471 - 489
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5632 KB)

    After means became available for generating sufficient power at wavelengths of about 3 meters, and with the development of suitable methods of reception, experiments were carried out with regard to the character of propagation of these waves. Directive devices, in the form of parabolic reflectors, were also used successfully. Some preliminary experiments upon the maximum range were first made by t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Method and Apparatus Used at the Bureau of Standards in Testing Piezo Oscillators for Broadcast Stations

    Publication Year: 1930, Page(s):490 - 509
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3688 KB)

    A piezo oscillator may be used either to check the frequency of the station or to control its frequency. Most of the piezo oscillators tested by the Bureau are for use in checking the frequency of the station. Piezo oscillators are capable of high precision in the measurement of their frequency if a beat note is produced by adjusting another generator to a similar frequency. This principle is empl... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A German Common Frequency Broadcast System

    Publication Year: 1930, Page(s):510 - 512
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (712 KB)

    The system of equal-wave broadcasting is described, according to which the three first German common frequency transmitters operate. Two cables are necessary between the transmitters, in which the carrier frequency is between 1500 and 2500. Multiplication of frequency is accomplished by static frequency changers in three stages. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On a Double Hump Phenomenon of Current through a Bridge across Parallel Lines

    Publication Year: 1930, Page(s):513 - 532
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1832 KB)

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Weather Forecasting by Signal Radio Intensity: Part 1

    Publication Year: 1930, Page(s):533 - 536
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    Along the meridian from Pittsburgh, Pennsylvania, to Morgantown, West Virginia, and at a distance of 60 miles, the night intensity of KDKA sometimes rises above the day signal and sometimes falls below it. Observations during 1927 and 1928 have shown that this phenomenon foreshadows weather conditions from twelve to twenty-four hours ahead. A rising curve after nightfall indicates an approaching s... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Method of Measuring the Radio-Frequency Resistance of an Oscillatory Circuit

    Publication Year: 1930, Page(s):537 - 543
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB)

    A method of measuring the resonant impedance and radio-frequency resistance of an oscillatory circuit, using a screen-grid tube, is described. It is based upon the principle of the dynatron oscillator and it requires neither radio-frequency measuring instruments and standards, nor sources of radio-frequency currents. The results obtained by this method at frequencies from 600 to 1250 kc per sec. a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Four-Electrode Vacuum Tube as Beat-Frequency Oscillator

    Publication Year: 1930, Page(s):544 - 547
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1576 KB)

    This paper describes briefly the use of one UX-222 four-electrode vacuum tube as a double oscillator and detector. Audio-frequency output is obtained in the beat note between the fundamental of the oscillation due to one grid and the second harmonic of that due to the other, giving a beat-frequency oscillator. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Bookelts, catalogs, and pamphlets received

    Publication Year: 1930, Page(s):548 - 549
    Request permission for commercial reuse | PDF file iconPDF (154 KB)
    Freely Available from IEEE

Aims & Scope

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

Full Aims & Scope