HIGH-SPEED OCEAN CABLE TELEGRAPHY 



257 



Accordingly, the efficiency to be gained by extreme precision has been 

 sought, and to achieve this desired precision has required radical 

 departure from the design used in land line apparatus. A photograph 

 of one of the distributors used on the New York-Horta-Emden line 

 is shown in Fig. 12. On this line three 5-channel distributors are 

 used, one each at New York, Horta and Emden. Within a few 

 seconds after one of five operators at New York prepares a perforated 



Fig. 12 — Multiplex distributor used on New York-Horta-Emden line 



Strip on a machine resembling a typewriter, the message appears in 

 typewritten form in Emden on a strip ready for delivery or retrans- 

 mission over a land line. 



While the system which I have roughly described is one which was 

 developed principally with regard to use on a particular cable, the 

 principal features embodied in it are applicable to any long loaded 

 cable of the type discussed in this paper. The details of the apparatus 

 which should be used on any cable are of course dependent on the 

 particular requirements to be met and each installation must be 

 engineered for its special needs if the full benefit of loading is to be 

 realized. 



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