unipole
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Unipole sign — Unipole (or monopole) sign is basically an advertising sign (usually billboard) frame structure mounted atop a single steel pole or column. Standard size bulletins available in unipole format: 14 high x 48 wide is the most common (about 4 meters… … Wikipedia
unipole — … Useful english dictionary
Folded unipole antenna — The folded unipole antenna was first devised for broadcast use by the late John H. Mullaney, an American radio broadcast pioneer, and consulting engineer. Designed to solve some difficult problems with existing medium wave (MW) amplitude… … Wikipedia
Ski pole — Ski poles (sometimes called stocks ) are used by skiers to improve balance, speed and acceleration. They probably evolved from walking sticks carried while travelingFact|date=March 2007, and possibly from spears as wellFact|date=March 2007. In… … Wikipedia
Monopole antenna — Mast radiator monopole antenna used for broadcasting. AM radio station WARE, Warren, Massachusetts, USA. A monopole antenna is a class of radio antenna consisting of a straight rod shaped conductor, often mounted perpendicularly over some type of … Wikipedia
Collinear antenna array — An antenna mast with four colinear directional arrays. In telecommunications, a collinear (or co linear) antenna array is an array of dipole antennas mounted in such a manner that the corresponding elements of each antenna are parallel and… … Wikipedia
Antenna (radio) — Whip antenna on car … Wikipedia
Parabolic antenna — A parabolic satellite communications antenna at Erdfunkstelle Raisting, the biggest facility for satellite communication in the world, in Raisting, Bavaria, Germany. It has a Cassegrain type feed. A parabolic antenna is an antenna that uses a… … Wikipedia
Directional antenna — Log periodic dipole array A directional antenna or beam antenna is an antenna which radiates greater power in one or more directions allowing for increased performance on transmit and receive and reduced interference from unwanted sources.… … Wikipedia
TOM Group — Limited sehk|2383 is a Chinese language media company in the Greater China region, with business interests across markets in the Mainland China, Taiwan and Hong Kong. Its business covers four media sectors: * the Internet (TOM Online) * Outdoor… … Wikipedia
Rhombic antenna — signal gathering action compared to other end fire, backfire and traveling wave types. A rhombic antenna is a broadband directional antenna co invented by Edmond Bruce and Harald Friis,[1] mostly commonly used in HF (high frequency, also called… … Wikipedia
