The principles underlying radio communication (1922)
United States. National Bureau of Standards, Ould, Richard Sheldon, 1889-, United States. Army. Signal Corps · Washington, Govt. Print. Off. · leaf 344
therefore possible for a submerged submarine to remain in com-munication with ship and shore stations and other submarines.Good signals have been received from European long-wave sta-tions on submarines off the New England coast when the top of DIRECTION FINDERS. 339 the loop was submerged 8 feet… … 152. Direction Finders.—In Section 146 the directional effectof several types of antenna has been discussed. The coil antennais much more markedly directional than any of the other typesordinarily used. The directional characteristic of a coil antenna 340 ELECTROMAGNETIC WAVES. is shown in Fig.…
Telegraph, Wireless · Radio
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