RADIO EXTENSION LINKS TO TELEPHONE SYSTEM 



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service. During the hurricane of 1938 it provided the only route to 

 Cape Cod for a time. The Provincetown radio Hnk is different from 

 any of the transoceanic links mentioned previously in that it operates 

 in a third region of the radio spectrum known as the ultra-short-wave 

 region while the transoceanic circuits are in the short-wave and long- 

 wave regions. This circuit operates on 63 and 65 megacycles, 4.75 

 and 4.61 meters, respectively. 



Fig. 3 — Radio telephone circuit from Provincetown to Green Harbor, Massa- 

 chusetts, connecting with the telephone line to Boston. Land wire route between 

 Provincetown and Boston is also shown. 



Transoceanic and other point-to-point services were not the only 

 services envisaged by radio engineers prior to the era of broadcasting. 

 Service to ships was considered an important use for radio. The 

 first commercial telephone service to ships was the service established 

 with transatlantic liners in December of 1929. Most of the larger 

 transoceanic liners are now equipped for radio telephone communica- 

 tion with both shores. A few years after this service was established, 

 a ship radio telephone service of a more local character was initiated 

 to serve fishing fleets off the New England coast. The radio station 



