TABLES OF PHASE 



893 



with a given attenuation characteristic may therefore be used to determine 

 the reactance associated with a given resistance characteristic. The only 



Table VIII 



Tabulation of Critical Points and Determination of Slopes of Straight Lines 



Approximating Resistance Characteristic of Fig. 7 



Table IX 

 Summation of Reactance Associated with Resistance of Fig. 7 at/ = 1.0 



difference is that the slopes of the straight lines approximating the resistance 

 plotted on a log frequency scale are determined by the expression below : 



Rn — Rn-l Rn ~ Rn-l 



k = 



log* 



where: 



fn-. 



2.303 log 



A 



fn-l 



Rn is the resistance at/„ on the straight line approximation to R. 



