DISTORTION CORRECTION 



527 



Network 11 



iR/4 



Ln = 



aiasR 



IT {a A - as) ' ' ^Ttti'^R ' 



aiR ^ 2R 



— ; -fvi4 = — • 



X m 



Ln/C2l = -Z>22/C]2 = L13IC2S = RliR2i = R^- 



aih — az 



F = e" 



where 



1 + (1 - m)2v2 ' 



3; = 



+ (1 



1 - hP 

 is the total parallel reactance in Zn divided by 2R. 



1 . m = coth ^^ 00 ; 

 1'. w = tanh l^loo; 



where ^00 is the maximum attenuation at / = co and at the internal 

 frequency/ = 1/V&2- 

 Attenuation Linear Equation: 



where 



ai - Paz + fyh = y/f, 

 y = ± 



F - 1 



(1 + my - (1 - myF 



and the signs to be taken for y correspond to the particular reactance 

 branches involved, whose signs in order on the frequency scale are 

 + , -, and +. 

 In physical solutions as = aih^. 



2y 



H = tanB = 



1 — (1 — m^)y- 



