The project has shown that it is possible to conduct experiments related to full scale measurements on a scale model of radio equipment. It is thereby possible to get maximum effect from the antenna of the ship. Obstructions like masts and funnels have virtually no effect on the radiation diagram. In specific cases they may cause variations, and they must be taken into account on the model. Large obstructions, which can be equalled to the wave length, will be of importance. The hull will also influence the radiation diagram. The report recommends vertically polarized antennas, like whip antennas in preference to a strung antenna. The best result will be obtained if two such antennas are asymetrically placed one on each side of the ship. The point made in the report must be regarded as guidelines and are not absolute. The best way is to make a model of the ship to decide the rigging of the antennas at an early stage to get the best possible result.

  • Supplemental Notes:
    • NSFI Report Nos. R-86.79 and R-87.79.
  • Corporate Authors:

    Ship Research Institute of Norway

    P.O. Box 4125, Valentinlyst, Hakon Hakonsongt. 34
    N-7001 Trondheim,   Norway 
  • Authors:
    • Siljubergasen, K M
    • Sagen, A
  • Publication Date: 1979

Media Info

  • Pagination: n.p.

Subject/Index Terms

Filing Info

  • Accession Number: 00319511
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 8 1980 12:00AM