TD-2 was a microwave relay system developed by Bell Labs and used by AT&T to build a cross-country network of repeaters for telephone and television transmission. The same system was also used to build the Canadian Trans-Canada Skyway system by Bell Canada, and later, many other companies in many countries to build similar networks for both civilian and military communications.
TD-2 was a microwave relay system developed by Bell Labs and used by AT&T to build a cross-country network of repeaters for telephone and television transmission. The same system was also used to build the Canadian Trans-Canada Skyway system by Bell Canada, and later, many other companies in many countries to build similar networks for both civilian and military communications.
Source: Wikipedia "TD-2" · CC BY-SA 4.0
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