A series of tests to evaluate, at L-band, the ranging, voice, and data communications concepts proposed for the air traffic control experiment of the Applications Technology Satellite-F are described. The ground station facilities, balloon platforms and the aircraft were supplied by the European Space Research Organization. One ground simulation and two aircraft flights at low elevation angles were conducted. Even under high interference conditions good performance was obtained for both voice communications and side tone ranging. High bit errors occurred in the data channels resulting in false commands. As a result of the experience gained in operating the equipment in an aircraft environment several recommendations were made for improving the equipment performance. (Author)


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    Title :

    NASA Balloon Aircraft Ranging, Data and Voice Experiment


    Contributors:
    S. Wishna (author) / C. Hamby (author) / D. Reed (author)

    Publication date :

    1972


    Size :

    69 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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