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    Early Air Navigation with RDF
    From: Ed Popko
    Date: 2019 Apr 16, 16:03 -0700

    I have read that Amelia Earhart was the first civilian pilot to try (and she failed) Bendix RDF equipment on her ill fated flight.  I have also heard that air navigators within the US were issued small directories of the latitude/longitude of powerful AM radio stations, mostly major cities, as an aid to navigation.

    I havent been able to find any example of these directories. Are any NavListers aware of these early RDF directories?

    I did find these two references but both are much later.

    • Introduction to Radio Direction Finding, US Army Intelligence Center, August 1999  (attached, see section of RDF and lines of position)
    • Naval Oceanographic Ollice publication H.O. 205, “Radio Navigational Aids"

    Ed

    File:
    US-Army-electronics-course-R.pdf
       
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