Receiver weighing less than 9 lb.; four interchangeable coils were made to cover wave-length range from about 15 to 92m.; tests especially to learn if higher altitudes would show different results; some day airplanes and airports will be equipped with short-wave radio transmitters and receivers.
Experimental high frequency radio tests for aircraft
U. S. Naval Inst. -- Proc
1928
4 pages
Aufsatz (Zeitschrift)
Englisch
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