A MULTIPLE UNIT STEERABLE ANTENNA 



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Fig. 27 — This is a cathode-ray "multitone" record comparing the MUSA output 

 with that of a horizontal half-wave antenna. The tones on the right-hand side of 

 each frame are the MUSA output; those on the left are the output of the horizontal 

 half-wave antenna. The two MUSA branches were steered at 15 and 22.5 degrees. 

 A delay of 470 microseconds was used to equalize the transmission time. GCS 

 (9020 kilocycles) Rugby, February 24, 1936, at 3:54 p.m., E.S.T. 



