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THE BELL SYSTEM TECHNICAL JOURNAL, MAY 1957 



comparatively simple. In horizontal steering, the intersection of the axes 

 of the antemia beams moves along line AB in the figure labelled "Cross 

 section at 0." If the intersection of the beams mo\ed along the circle 

 A-C, the recei\'ed power would not change. The decrease in power caused 

 by moving the beams from position ^4 to B is given by (13). The calcu- 



HORIZONTAL PLANE 





.4 -1.2 -1.0 -0.8 -0.6 -0.4 -0.2 0.2 0.4 0.6 0.8 1.0 1.2 1.4 



AZIMUTH ANGLE, <7, IN DEGREES 



Fig. 11 — Relation between received power and azimuth angle 5. 



