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ROHN Manufacturing was founded in 1948 by Dwight Rohn, who at the time was manager of the Peoria Airport. The first tower he built was for airport use. [ 1 ] ROHN first began producing antenna towers for home television reception, and subsequently expanded its product line to include the manufacturing of telecommunication towers and other ...
The first, a 665 foot (203 m) half-wave mast was installed at radio station WABC's 50 kW transmitter at Wayne, New Jersey in 1931. [ 4 ] [ 5 ] During the 1930s it was found that the diamond shape of the Blaw-Knox tower had an unfavorable current distribution which increased the power emitted at high angles, causing multipath fading in the ...
The mast should also have a DC path to ground, so that static electric charges on the mast can drain off. [3] Also at the base is a grounding switch, which is used to connect the mast to the ground system during maintenance operations to ensure that there is no chance that high voltage will be present on the mast when personnel are working on it.
The second-tallest structure in Nevada is the Moapa Entravision Tower at Moapa, a 426.7 m (1,400 ft) tall guyed TV mast at Moapa erected in 2008, the third-tallest is the 401 m (1,316 ft) tall Moapa Kemp Tower at Moapa, the fourth-tallest is Stratosphere Tower near downtown Las Vegas, which was erected in 1994–96 and reaches 1,149 ft (350 m ...
A guyed radio mast. A guyed mast is a tall thin vertical structure that depends on guy lines (diagonal tensioned cables attached to the ground or a base) for stability. The mast itself has the compressive strength to support its own weight, but does not have the shear strength to stand unsupported or bear loads.
National Guard soldiers’ mission to help New York City’s overburdened migrant shelters will be “completed” next week, The Post has learned. The deployment of New York Army National Guard ...
This is a part of the list of tallest structures in the world, past and present of any type.. This list includes quite a lot of masts. A mast is a man-made support structure, commonly used on sailing ships as support for sails, or on land as radio masts and towers used to support telecommunication equipment such as radio antennas ("aerials" in the UK).
Some troops leave the battlefield injured. Others return from war with mental wounds. Yet many of the 2 million Iraq and Afghanistan veterans suffer from a condition the Defense Department refuses to acknowledge: Moral injury.
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