Differences between aircraft and marine radio beacons discussed; directional beacon and visual reception apparatus; value of radio; opinions of G. R. Putnam, Commissioner of Lighthouse Service, Department of Commerce, in regard to value of radio are quoted.


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    Title :

    Evolution of aircraft and marine radio beacons


    Additional title:

    Aero Digest


    Contributors:
    Smith, J.E. (author)

    Published in:

    Aero Digest ; 15 , n 5


    Publication date :

    1929


    Remarks:

    3 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :


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