In some large Federal Aviation Administration (FAA) air traffic control sectors, the controller manually switches between multiple ground transmitters to communicate with aircraft at opposite ends of the sector. This puts an additional burden on the controller. Aeronautical Radio, Inc. (ARINC) uses a frequency offset system which produces five frequencies from one channel assignment. ARINC provides this service to commercial air carriers who use receivers designed to ARINC specifications. These receivers are capable of eliminating the audio heterodyne generated by the offsetting process. The commercial air carriers use this system for airline business. The testing performed at the FAA Technical Center to evaluate this system as a means of controlling the air traffic in large sectors is described. The tests indicate that a frequency offset system cannot be used with general aviation aircraft receivers because many cannot filter out the audio heterodyne. Use of frequency offset may be possible in high altitude sectors where commercial aviation receivers, which meet ARINC specifications, are used if some additional concerns are resolved.


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    Title :

    Feasibility of Using Frequency Offset on Very High Frequency Air/Ground Voice Channels


    Contributors:
    M. Badinelli (author) / A. Cushman (author) / P. Randazzo (author)

    Publication date :

    1990


    Size :

    48 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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