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A mast radiator or mast antenna is a radio tower or mast in which the whole structure is an antenna. Mast antennas are the transmitting antennas typical for long or medium wave broadcasting. Structurally, the only difference is that some mast radiators require the mast base to be insulated from the ground.
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 Warsaw Radio Mast (centre) from a distance (as pictured in 1989) Warsaw Radio Mast compared with some other tall structures The Warsaw Radio Mast (Polish: Maszt radiowy w Konstantynowie) was a radio mast located near Gąbin, Poland, and was the world's tallest structure at 2,120 ft (646.30 m) from 1974 until its collapse on 8 August 1991. [1]
World Radio Tower Santa Maria: Santa Maria, Texas: Guyed Mast 360.3 m Richland Towers Tower Atlanta: Atlanta, Georgia Guyed Mast 360 m Trinity Broadcasting Tower Oklahoma: Oklahoma City, Oklahoma Guyed Mast 359.1 m Prairie Public Broadcasting Tower: Amenia, North Dakota: Guyed Mast 358.7 m Cox Radio Tower Security: Security, Texas: Guyed Mast ...
Cellular lattice tower A cell tower in Peristeri, Greece. A cell site, cell phone tower, cell base tower, or cellular base station is a cellular-enabled mobile device site where antennas and electronic communications equipment are placed (typically on a radio mast, tower, or other raised structure) to create a cell, or adjacent cells, in a cellular network.
The central tower of each antenna system is 304 m (997.4 ft) tall. It is surrounded by six 266.7 m (875 ft) tall masts, placed on a ring with a radius of 556 m around the central tower. The remaining six towers of the array are 243.5 m (799 ft) tall, placed on a circle of 935.7 m (3,070 ft) around the central tower. [2]
[citation needed] To perform adequately, the counterpoise should extend at least half a wavelength from the antenna tower in all directions. [8] In designing a counterpoise for a medium-wave radio station, for example, radio-waves are a maximum of 566 metres (1,857 ft) long. Therefore, the counterpoise should extend 282 metres (925 ft) from the ...
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]