Aims of radio direction finding to direct aircraft along dark airways, to determine accurately limits of airport and to effect landing regardless of visibility; rotating coil compass not suitable; radio compass valuable on isolated routes; radio beacon; comparison of three types of direction finders; development of beam transmitters; no known remedy for "night effect"; beacon emergency landings possible; airplane direction finding by radio not automatic.
Radio direction finding
Aviation
Aviation ; 24 , n 1
1928
4 pages
5 Figs.
Article (Journal)
English
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