EXTENSION OE THE TELEPHONE SYSTEM TO SHIPS 177 



area. For these cases the land subscriber was connected to the Deal 

 Beach station and there the call was put thru directly to the ship in 

 case the radio telephone circuit was available. When not available, 

 information as to the call was recorded by the radio operator and the 

 telephone circuit released for the time being. The call was then com- 

 pleted by first setting up the radio link and then calling back the 

 initiating subscriber. It is obvious that the giving of commercial 

 service will invoke: first, the ascertaining of whether or not the 

 vessel is within range; second, the "lining up" of the radio link pre- 

 paratory to the thru connection ; and third, the building up of the land 

 line connection back to the calling subscriber and the making of the 

 thru connection. Many detailed variations are possible in the pro- 

 cedure and the determination of the best operating methods will have 

 to await upon experience obtained in actually giving service. 



Hat- 1/9/il Station K (J G No 4 Date l/9/i:l Station fe X J 4 No _ -1 



rimt &W=er received 3:50 3?. t. I in. nkd n . »m i..cJ 3:46 P. K. 



FROM FROM 



Place NEWARK, N.J. Place NEW IRK, N.J. 



Ttl No. 75i!l: WA.VERLY Tel No 7b "* WAVERLY 



Person E.E.?REY Person E.E.?REY 



- TO TO 



Place J-G-GLOIOKSTER Place 3 . .3. GLOVCESTER 



| c |. No. lei. No K^O 



Person 1(.E.?'LTZ 



3:50 P.I.. 



me land subscriber connected 

 ship operator 3:5b P.K. 



nplcted 



Reports PAIR Q1:'LITY 



Fig. 22 



In order to become familiar with the problems involved in main- 

 taining the ship-to-shore system in operation, a series of operating 

 tests were carried out for a period of about three months, starting 

 in January, 1921, and operating between Deal Beach station and the 

 S. S. Gloucester. In accordance with a pre-arranged schedule (un- 

 known to the engineer-operators), calls were entered by a considerable 

 number of Bell System engineers in the vicinity of New York, and 

 calls were initiated from the vessels also by the opening of sealed 

 envelopes carrying instructions to call one or more parties on shore. 

 Fig. 22 is a facsimile ol the message form or "ticket" used in the 

 operating tests. The table below gives a representative record sheet 

 recording the calls which were made on a partciular day and also the 

 time which elapsed in putting each one thru. These data, of course, 



