A SINGLE SIDEBAND MUSA RECEIVING SYSTEM 313 



MUSA UNIT RHOMBIC 



20 30 40 50 60 



16-UNIT MUSA ARRAY 



80 90 



10 20 30 40 50 60 70 80 90 



WAVE ANGLE IN DEGREES (FROM HORIZONTAL) 



Fig. 3— Directive diagram in the vertical plane of a unit rhombic antenna and the 

 16 unit musa array. Frequency 4700 Kc. <t> = phase shifter setting. 



