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Microwave relay stations were often located on tall buildings and mountaintops, with their antennas on towers to get maximum range. Beginning in the 1950s, networks of microwave relay links, such as the AT&T Long Lines system in the U.S., carried long-distance telephone calls and television programs between cities. [1]
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 ...
The second segment of White Alice was a pair of TD-2 microwave radio links that supported the Ballistic Missile Early Warning System (BMEWS) at Clear Air Force Station. This section provided two routes from Alaska to NORAD in Colorado, for this reason it was also known as the Rearward Communications System. [3]
AN/GRC-201 Troposcatter Communication System US Army TRC-170 Tropo Scatter Microwave System. The U.S. Army and Air Force use tactical tropospheric scatter systems developed by Raytheon for long haul communications. The systems come in two configurations, the original "heavy tropo", and a newer "light tropo" configuration exist.
The first microwave relay systems were developed by the Allied military near the end of the war and used for secure battlefield communication networks in the European theater. Post World War II exploitation
Microwave technology advanced during World War 2 due to the development of radar, and toward the end of the war the US Army began using microwave communication systems in the European theater. These military systems were some of the first practical microwave relay systems and presaged development of the great transcontinental commercial ...
The British Army's Wireless Set, Number 10, was the world's first multi-channel microwave relay telephone system. [1] It transmitted eight full-duplex (two-way) telephone channels between two stations limited only by the line-of-sight, often on the order of 25 to 50 miles (40 to 80 km).
The White Alice Communications System (WACS, "White Alice" colloquially) was a United States Air Force telecommunication network with 80 radio stations [1] constructed in Alaska during the Cold War. It used tropospheric scatter for over-the-horizon links and microwave relay for shorter line-of-sight links. Sites were characterized by large ...