A SUBMARINE TELEPHONE CABLE WITH SUBMERGED REPEATERS 



79 



cutched jute, the armor and the outer jute serving, to which are appHed 

 the usual cable compounds. Four types of armor are employed in the cable 

 for use in various depths of water or for special shore conditions. 



-0.5 



0.5 



CO 

 UJ 



"^-0.5 



0.5 







-0.5 



36N.M. LENGTH. AUTOMATICALLY 

 CONTROLLED INSULATION DIAMETER. 

 MANUFACTURING ORDER CORE ASSEM. 



0.5 2: 



AR 



MEAN OF THE DEVIATIONS OF ALL 

 ARMORED CABLE MEASURED. TOTAL 

 OF 9 CABLE LENGTHS , 18 ENDS 



-0.5 



-0.5 



10 20 30 



40 50 60 

 FREQUENCY 



70 80 90 100 110 120 

 IN KILOCYCLES PER SECOND 



130 140 150 



Fig. 10 — Impedance deviations of cable lengths from average of all armored cable 

 impedances. 



The lengths of the various types, in nautical miles, as they appear in the 

 two cables, starting at Key West are as follows: 



