Radio noise and RFI at and near frequencies employed by Loran-C radio navigation systems were investigated in portions of Los Angeles, California. Emphasis was placed on the definition of the detailed time and frequency domain structure of noise and RFI which might degrade the reception of Loran-C signals in urban, suburban, and industrial areas of Los Angeles. The measurements were directed toward obtaining an understanding of the noise and RFI environment which would be encountered by vehicularly installed Loran-C navigation systems. Measurements were made at and around the 100 kHz band of frequencies employed by Loran-C, and they were made from a mobile van. The noise and RFI instrumentation is described in this report.

  • Supplemental Notes:
    • Prepared in cooperation with Systems Control, Inc., Palo Alto, CA.
  • Corporate Authors:

    Gould Information Identification Incorporated

    Fort Worth, TX  United States 

    Transportation Systems Center

    55 Broadway, Kendall Square
    Cambridge, MA  United States  02142

    Urban Mass Transportation Administration

    400 7th Street, SW
    Washington, DC  United States  20590
  • Authors:
    • Vincent, W R
    • Sage, G
  • Publication Date: 1980-10

Media Info

  • Pagination: 238 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00328962
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: DOT-TSC-UMTA-80-38 Final Rpt.
  • Contract Numbers: DOT-TSC-1237
  • Files: NTIS, TRIS, USDOT
  • Created Date: May 21 1982 12:00AM