Vt 



ELECTRIC CIRCUITS APPLIED TO COMMUNICATION 9 



1 



Vr SZr 



Vt 



= 1 



" vr'^Zr 



• >. ^' 1 j,ZlYZP 





Z/ , FZ/2 , YZH' 



iZr 



Zl , FZ/2 , YZ~P 



Zr ' 2! ' 3\Zr 



F_ ^ Z. 2 ! 



(5a) 



(56) 



(5c) 



(5^) 



(5.) 



V7-P V-7V* 



is 50 per cent, greater in magnitude than the fourth term of the series, 

 and this approximation, therefore, does not commend itself for deter- 

 mining the voltage ratio, since if one wishes a precision requiring four 

 terms of the series it is naturally better to use the correct fourth term. 

 In order to correctly represent four terms of the series by an equivalent 

 network it is necessary, as indicated in 5e, to assume one fourth of the 

 capacity concentrated at the sending end of the line and the other 

 three fourths concentrated at a point two thirds distant from the send- 

 ing end. Finally, if this unsymmetrical network be reversed in direc- 



