. Le journal technique de Bell System . ts et Miners Line, et exploité en conjonction avec Deal Beach et Green Harbour. Plus tard, un autre ensemble semblable à l'électricité a été construit par la General Electric Company et a été en panne et exploité par la radio Corporation sur le steamshipAmerica. Cette installation est illustrée à la Fig. 9. Partie II EXPLOITATION DU SYSTÈME COMBINÉ RADIO ET FIL les travaux de développement décrits dans la partie I avaient abouti à la mise en place d'une usine de radiotéléphonie expérimentale navire-terre de quelque part. Ceci sera vu par référence à la carte d'accompagnement de la Fig. 10 qui gi

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. The Bell System technical journal . ts and Miners Line, and operated in conjunctionwith Deal Beach and Green Harbor. Later another electricallysimilar set was built by the General Electric Company and was in-stalled and operated by the Radio Corporation on the steamshipAmerica. This installation is illustrated in Fig. 9. Part II OPERATION OF THE COMBINED RADIO AND WIRE SYSTEM The development work as described in Part I had resulted in estab-lishing an experimental ship-to-shore radio telephone plant of someproportions. This will be seen by reference to the accompanyingmap of Fig. 10 which gives a picture of the field setting, as it were, of the experimental operations. The experimental plant included: Two operating shore stations—Deal Beach, New Jersey, and GreenHarbor, Massachusetts. EXTENSION OF THE TELEPHONE SYSTEM TO SHIPS 157 A field experimental station at Cliffwood, New Jersey. Two ship installations, on the S. S. Gloucester and the S. S. Ontario. The vessels operated between Boston and Philadelphia or Baltimore. Fig. 9 and took any of several courses, two representative ones of whichare as plotted in the figure. Let us now consider this plant from the communication stand-point and look into its characteristics, first as an electric transmissionsystem, and then as a message handling facility. 158 BELL SYSTEM TECHNICAL JOURNAL Each of the two land stations was tied into its nearest center bywire circuits, Deal Beach to New York and Green Harbor to Boston.We will take for our example the New York-Deal Beach-Ship circuitpictured in Fig. 11 and shown diagrammatically in Fig. 12. This is

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