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 342
ID NEXT.STAGEOFAMPLIFILR FIG.I79-B. COILANTEKNA CIRCUIT WITH BALANCING CONDENSER,F0RU5LASDIRLCTIONFINDLR. DIRECTION FINDERS, 339 the loop was submerged 8 feet below the surface. Signals havebeen successfully transmitted from a submarine to a distance of3 miles, with the top of the loop submerged 9… … 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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