COUNTERMEASURES AGAINST SNOW ACCRETION AN ICING ON RADOMES

Television broadcasting through an artificial satellite calls for a task of solving various problems of propagation of electromagnetic waves in snowy countries, where serious problems of attention is paid to removal of snow accreted on the surface of a radome covering a receiving aerial. Since the wavelengths of electromagnetic waves to be used in satellite broadcasting are extremely short, they are easily absorbed by liquid phase existing in wet snow. The rate of attenuation of a 24-GHz wave was measured as a function of thickness of a water film and found to be 18 dB/mm. One of the most convenient and economical devices to remove wet snow deposited on a radome surface was to rotate the radome at the rate of 100 proportional to 1400 r.p.m.. Meanwhile, brushing of the surface of a rotating radome was found effective in removal of rime deposits formed by freezing of supercooled water droplets thereon. /Authors/

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    • This Paper appeared in TRB Special Report 185, SDistribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reservednow Removal and Ice Control Research.
  • Corporate Authors:

    Transportation Research Board

    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Authors:
    • Suzuki, Michiya
    • Sha, Kokusho
    • Tsukawaki, Tomohiro
    • Kuroiwa, Daisuke
  • Conference:
  • Publication Date: 1979

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 303-307
  • Monograph Title: SNOW REMOVAL AND ICE CONTROL RESEARCH
  • Serial:

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Filing Info

  • Accession Number: 00193895
  • Record Type: Publication
  • Files: TRIS, TRB, ATRI, STATEDOT
  • Created Date: Jun 13 1979 12:00AM