A review of offset carrier systems development and history is provided for insight into problems that can affect air traffic control. An amplitude modulated offset carrier system is discussed as a special case of normal AM superheterodyne communications. Potential problems of heterodyne beats that can occur above, below and in the audio band are noted. Potential audio phase delay distortion between two or more signals is discussed with respect to remote control line problems are to differential propagation delay problems. The difficulty in combining audio from separate remote receivers is discussed. Target acquisition model contours are provided for the four air traffic sectors to be used in the remainder of the study. (Author)

  • Corporate Authors:

    AMAF Industries, Incorporated

    9052 Old Annapolis Road
    Columbia, MD  United States  21045

    Federal Aviation Administration

    800 Independence Avenue, SW
    Washington, DC  United States  20591
  • Publication Date: 1979-9

Media Info

  • Pagination: 32 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00329114
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FAA-RD-79-95
  • Contract Numbers: DOT-FA-78WAI-830
  • Files: NTIS, USDOT
  • Created Date: Jun 12 2002 12:00AM