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BELL SYSTEM TECHNICAL JOURNAL 



The far-end crosstalk for a length of 5 miles was computed from these 

 laboratory measurements and in Fig. 1 the results are compared with 

 measurements on this length, the crosstalk in either case being prac- 

 tically the same whether the tertiary was terminated or short-circuited. 



95 



N 



a-computedI, far-end, tertiary terminated 

 B- measured/ or short circuited 



c(and o)— computed \near-end,tertiary ter- 



D — measured from west endj minated 



80 90 100 150 200 



frequency in kilocycles per second 



250 



300 



Fig. 1 — Far-end crosstalk and near-end crosstalk for 5-mile length. 



In Figs. 1 and 2, the computed near-end crosstalk for a length of 5 

 miles is compared with representative measurements on the above 

 mentioned twin coaxial cable. Figure 1 shows this comparison with 

 the tertiary terminated and Fig. 2 with the tertiary short-circuited. 



