Compass unit covers frequency band from 230 to 350 kc, which includes all of marine radio beacons maintained by U S Lighthouse service at strategic points on Atlantic, Pacific and Gulf coasts, and on Great Lakes; by taking bearings on two of such stations, ship's position may be determined regardless of fog or darkness; included in band are numerous aircraft beacon stations operated by Civil Aeronautics Authority.
Radio compass for small vessels
Bell Laboratories Rec
Bell Laboratories Record ; 18 , n 5
1940
2 pages
Aufsatz (Zeitschrift)
Englisch
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