The direction finder is useful in the fields of air traffic control, navigation, military electronic countermeasures, and missile tracking. Two-filament and four-filament spiral antennas are used in the embodiments. The device has no directional ambiguity and is sensitive to signals emanating from any direction.


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    Title :

    Four ARM Spiral Antenna Direction Finder


    Contributors:
    J. H. Little (author) / J. A. Kaiser (author)

    Publication date :

    1966


    Size :

    1 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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