TRANSATLANTIC RADIO TELEPHONY 



359 



two series, those for which 77 = being numbered 1, 3, • • •, (2/ — 1), 



• • • {p — 1) and those for which rj = tt being numbered 2, 4, • • •, 21, 



• • •■, p, the initial ends of the second series being removed by a distance 

 5 from the initial ends of the first series, along the axes of the antennas 

 of the first series. 



>2ND 



W(l-i)-*- 



[f~m (2l- ,), tm(2l-i)] 



- fm(2\),<f>m(2T)] 



Fig. 19 



Equation (205) applied to this general array gives for the total 

 current received from the array 



m=g 2i = p .2xr„(2i_l) 

 r _ J y^ y^ g-J y co3ld-<l>m(2l-l)^^-Pm(2l-l) 



771=1 21 = 2 



in=q 2l=v '^■^^mm) 



+ Iq-. Z Yj ^~'^ ^osl8-<t>m^2l)\^-Pm^2l)^ (206) 



TO=1 2J = 2 



where 



r,„,2i-n = V[a(m - 1) + b{l - l)]"^ + [_c{l - l)f, (207) 



rmi2i) = V[a(m - 1) + b{l - 1)? + lc{l - 1) + sj, (208) 



>7n(2i-l) 



>m(20 



tan" 



= tan-i 



C{1 - 1) + 5 



(209) 

 (210) 



