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The tower consists of two parts: a lattice tower of 1,950 feet (590 m); [6] topped by the transmitting antenna array of 53 feet (16 m). The total height of both is 1,987 feet (606 m). The antenna weighs 9,000 pounds (4.1 t), the lattice tower weighs 855,500 pounds (388.0 t), giving a total weight of 864,500 pounds (392.1 t).
The towers were built as high guy-wired aerial masts for the transmission of TV programs. The original analog tower was built in 1976 near Salem, South Dakota, and was 477 meters (1,565 ft). [3] The digital tower was erected in 1998 near Rowena, South Dakota, and is 609.2 meters (1,999 ft), [1] making it one of the tallest structures in the world.
Blaw-Knox towers Those few of the towers still standing do the opposite: They have a guyed lower section surmounted by a freestanding part. Zendstation Smilde is a tall tower with a guyed mast on top with guys which go to ground. Torre de Collserola is a guyed tower with a guyed mast on top where the tower portion is not free-standing.
In such cases the antennas for directional radio services are mounted on the top of the free-standing part of the tower, while the guyed mast on its top carry the FM and TV antennas. They can be also used in order to upgrade small stable towers (like watertowers) with a long antenna mast for FM and TV broadcasting.
Mast radiators can also be built as free-standing lattice towers, wide at the bottom for stability, narrowing to a slender mast. [4] The advantage of this construction is the elimination of guy lines and thus reduction in land area required. These towers can have a triangular or a square cross section, with each leg supported on an insulator.
Radio masts and towers support antennas (also known as aerials) for telecommunications and broadcasting, including television--in the United States. Wikimedia Commons has media related to Radio masts and towers in the United States .
Tom's Hardware is an online publication owned by Future plc and focused on technology. It was founded in 1996 by Thomas Pabst. [1] It provides articles, news, price comparisons, videos and reviews on computer hardware and high technology.
The WHDH-TV tower is a free-standing lattice tower with a triangular cross section located in the Newton Upper Falls section of Newton, Massachusetts.It was built in 1960 by RKO General and is currently owned by Sunbeam Television, which uses it to transmit its Boston television stations, WHDH (channel 7) and WLVI (channel 56), which shares WHDH's channel spectrum.