168 



BELL SYSTEM TECHNICAL JOURNAL 



fhc measurements an<l had the effect <>l minimizing the variation 

 of circuits equivalent with distance. 



The curve of Figs. 15 and 1G are obtained by taking the data of 

 Fig. 14 and plotting the variation of amplification with separation 

 between stations. The minimum point is arbitrarily chosen. These 



TRANSMISSION TEST 

 Deal Beach anc S.S. Gloucester 

 July I). 1921 

 Sojt mboij;.. cn CouR6E l-F 



<5 re 26 # so 50 so 70 so 90 it» no 120 rjo' rto 150 r?o statute uilh 



■ rn<.M Deal Beach to Ship 



Fig. 15 



Fig. 16 



