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A radio mast base showing how virtually all lateral support is provided by the guy-wires. The terms "mast" and "tower" are often used interchangeably. However, in structural engineering terms, a tower is a self-supporting or cantilevered structure, while a mast is held up by stays or guy-wires. [1] A mast
A mast radiator (or radiating tower) is a radio mast or tower in which the metal structure itself is energized and functions as an antenna. This design, first used widely in the 1930s, is commonly used for transmitting antennas operating at low frequencies , in the LF and MF bands, in particular those used for AM radio broadcasting stations.
The diamond-shaped tower was patented by Nicholas Gerten and Ralph Jenner for Blaw-Knox July 29, 1930. [5] and was one of the first mast radiators.[1] [6] Previous antennas for medium and longwave broadcasting usually consisted of wires strung between masts, but in the Blaw-Knox antenna, as in modern AM broadcasting mast radiators, the metal mast structure functioned as the antenna. [1]
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 .
Radio towers and masts that have been demolished or destroyed due to engineering error, replacement, or controlled demolition. Some of the radio masts could be either unfinished or abandoned. Pages in category "Former radio masts and towers"
Kamień Mały Radio Tower: Poland Kamień Mały 38 m Rajsko Radio Tower Poland Rajsko: 35 m [48] Romanian People's Salvation Cross: 2011 Moldova Nisporeni 35 m Góra Sumerówka Radio Tower: Poland Sucha Beskidzka 34.3 m Koniaków Radio Tower: 1969 Poland Koniaków 34 m [49] Jaworzyna Radio Tower: Poland Szczyrk 30 m Tower of Unity: 1962 Germany ...
AM radio broadcast towers are often fitted with insulators at the mast base and the RF energy is fed at that point. Some are also insulated at the center for feeding the RF energy at that point. Wire rope guys are frequently used and segmented with insulators at several points. Extensive lightning protection is required for insulated towers.
A tower array is an arrangement of multiple radio towers which are mast radiators in a phased array. [1] They were originally developed as ground-based tracking radars. [2] Tower arrays can consist of free-standing or guyed towers or a mix of them. Tower arrays are used to constitute a directional antenna of a mediumwave or longwave radio station.
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