602 



BELL SYSTEM TECHNICAL JOURNAL 



2800 

 2700 

 2600 



2500 



in 



2 2400 



O 



Z 2300 



lU 



U 2200 



< 



M 2100 

 to 



UJ 



ft 2000 

 1900 



leoo 



1700 

 1600 



800 1200 1600 2000 2400 



FREQUENCY IN CYCLES PER SECOND 



40 



c 



L 



I 



{. 



-40 : 



-80 : 



-120 [ 

 I 



-160 « 



c 



-200 c 



-240 



Fig. 10 — Impedance measured at Toronto. Termination at Barrie, 113 type 

 network. Sending-end, half section. Makeup from Toronto, 9.5 miles 19-ga., 

 0.062 mf. per mile, 0.0483 mf., 66.8^ per load section; 1.3 miles 16-ga., 0.062 mf. per 

 mile, 0.0483 mf., 32.8^^ per load section; 48.7 miles 19-ga., 0.085 mf. per mile, 0.0483 

 mf., 48.9^ per load section. 



- 2300 



UJ 



5 2200 



If) 



5) 2100 



UJ 



(T 



2000 



1900 

 1800 

 1700 

 1600 



800 1200 1600 2000 2400 



FREQUENCY IN CYClES PER SECOND 



-40 ± 

 _i 



-80 2 

 Z 



-120 UJ 

 O 



z 



-160 iS 



U 



Fig. 11 — Impedance measured at Toronto. Termination at Barrie, 113 type 

 network. Sending-end, half section. Makeup from Toronto, 9.5 miles 19-ga., 

 0.062 mf. per mile, 0.0483 mf., 66.8^ per load section; 50.2 miles 19-ga., 0.085 mf. 

 per mile, 0.0483 mf., 48.9'^ per load section. 



