. The Bell System technical journal . the photograph. The selector arm connects the tapsto an auxiliary receiver with a high-input impedance. The absenceof standing waves is shown by equal readings at the six was found that the maximizing adjustment results in a standingwave with less than ten per cent total variation, which representsnearly as much suppression as the smoothness of the line allows. A MULTIPLE UNIT STEERABLE ANTENNA 357 With nominally correct resistance termination standing waves of fiveper cent usually occur. For standing waves not exceeding ten per centthe accomp
. The Bell System technical journal . the photograph. The selector arm connects the tapsto an auxiliary receiver with a high-input impedance. The absenceof standing waves is shown by equal readings at the six was found that the maximizing adjustment results in a standingwave with less than ten per cent total variation, which representsnearly as much suppression as the smoothness of the line allows. A MULTIPLE UNIT STEERABLE ANTENNA 357 With nominally correct resistance termination standing waves of fiveper cent usually occur. For standing waves not exceeding ten per centthe accompanying phase distribution along the line does not departmore than a few degrees from the desired linear distribution. Theuse of the standing wave detector in routine operation was thereforenot required. Phase ShiftersOf the numerous methods of shifting phase the method ^ illustratedin Fig. 13 is the one chosen for the 18 circuits (3 branches, 6 antennas)of the experimental MUSA. Here points a, b, d, and c have voltages ^ ROTOR PLATES. STATOR PLATES
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
