CANTAT-1

CANTAT-1 was the first Canadian transatlantic telephone cable, between Hampden, Newfoundland and eventually Grosses-Roches, Quebec and Oban, United Kingdom, which followed on from the success of TAT-1.<ref name=HATCANTAT>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name=HATtime>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> It was conceived and approved as stage one of a proposed commonwealth round the world cable and was done at a cost of $8,500,000.<ref name=Hills>Template:Cite book</ref> The system was jointly owned by Cable & Wireless and the Canadian Overseas Telecommunication Corporation (COTC).

The system, involving the first commercial use of a new lightweight deep sea cable with a weight in water of about one-fifth that of armored deep sea cable, was laid in two phases. The first, CANTAT A, was the Template:Cvt ocean section laid by HMTS Monarch with the U.K. shore end laid by HMTS Ariel<ref group=note>Built 1939 by Swan, Hunter and Wigham Richardson Ltd.</ref> and the Canadian end laid by the U.S. Army CS Albert J. Myer. The second phase, linked by overland cable from Hampden to Corner Brook, Newfoundland, was the Template:Cvt segment laid by HMTS CS Alert<ref group=note>Fourth Alert, built in 1961 by Fairfield Ship Building & Engineering.</ref> with both shore ends laid by CS Hadsund.<ref name=HATCANTAT/><ref name=HATtime/>

The new Trans Atlantic cables, TAT-1, CANTAT-1 and TAT-2, with their high capacity brought about a major change in regulations, with specific changes in the U.S. Federal Communications Commission policies regarding lease of foreign cable channels by U.S. international record carriers.<ref group=note>Companies had been divided by the Communications Act of 1934 according to the technology used.</ref><ref name=Hills/> CANTAT-1 operated from 1961 to 1986, initially carrying 60 telephone circuits, later modified from 4 kHz channels to 3 kHz channels, expanding capacity to 80 telephone circuits.<ref name=HATCANTAT/><ref name=HATtime/>

External links

• HMTS/CS Alert (4)
• HMTS Ariel and Ron Woodland
• Specimen of lightweight transatlantic telephone cable, 1961

Template:Asbox