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 351
he coils directional characteristic in someway. One way to do this is by throwing the balancing condenser 346 ELECTROMAGNETIC WAVES. out of balance and inserting in the ground lead of the balancingcondenser an inductance and capacity in parallel, by whichthe coil is tuned as a vertical antenna to… … F1G.179-D.UNILATERAL DIRECTIONAL CHARACTERISTIC OF SYSTEMCONSISTING OF COIL AND VERTICAL AKTTENNA. coupled to the coil antenna circuit in the usual way with avariable coupler. This coupling is adjusted until the strengthof the signal from the antenna alone is the same as thestrength of the signal…
Telegraph, Wireless · Radio
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