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An antenna rotator (or antenna rotor) is a device used to change the orientation, within the horizontal plane, of a directional antenna. Most antenna rotators have two parts, the rotator unit and the controller. The controller is normally placed near the equipment which the antenna is connected to, while the rotator is mounted on the antenna ...
Werner Co. was founded in 1922 by Richard D. Werner as "R. D. Werner Co., Inc.," which specialized in metal moldings. R. D. Werner Co., Inc. became a leader in plastics extrusion during the World War II restrictions on civilian metal usage. After the war, Werner started working with aluminum and developed an emphasis on producing aluminum ...
He was first employed by the U.S. Air Force and then GT&E Sylvania Electronics Systems on CDAA and other antenna projects. Professor Edgar Hayden, then a young engineer in the University of Illinois Radio Direction Finding Research Group, led the reassembly of the Wullenweber , studied the design and performance of HF/DF arrays and researched ...
The Irving Porter Church Memorial Telescope (built in 1922) on its original Warner & Swasey mount. The 12" objective lens was polished by Brashear Co. The first Warner & Swasey telescope, built in 1881, [ 8 ] was sold to Beloit College for its new Smith Observatory and had a 9.5-inch lens made by Alvan Clark & Sons .
John Daniel Kraus (June 28, 1910 – July 18, 2004) was an American physicist and electrical engineer known for his contributions to electromagnetics, radio astronomy, and antenna theory. His inventions included the helical antenna, the corner reflector antenna, and several other types of antennas.
Werner Enterprises, Inc. is an American transportation and logistics company, serving the United States, Mexico and Canada. Werner Enterprises stated that it had 2023 revenues of $3.28 billion [ 7 ] and over 14,000 employees and contractors.
U.S. Antenna Structure Registration rules are contained in Part 17 of Federal Communications Commission Rules (47 C.F.R. 17). [1] The purpose of these rules is to regulate via the Federal Aviation Administration (FAA) and the FCC antenna structures in the US that are taller than 60.96 meters (200 feet) above ground level or that may interfere with the flight path of a nearby airport.
The origin of the word antenna relative to wireless apparatus is attributed to Italian radio pioneer Guglielmo Marconi. In the summer of 1895, Marconi began testing his wireless system outdoors on his father's estate near Bologna and soon began to experiment with long wire "aerials" suspended from a pole. [5]
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