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    Frequency/distance sharing criteria between non-directional beacons (NDB) and travelers information stations (TIS) in the 525-535 kHz band /

    Frequency/distance sharing criteria between non-directional beacons (NDB) and travelers information stations (TIS) in the 525-535 kHz band / by Frazier, W. E.

    Published 1978
    Other Authors: “…Kelly, D. C.…”
    Government Document Book
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