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Counterpoises are typically used in antenna systems for radio transmitters where a good earth ground connection cannot be constructed.. Monopole antennas used at low frequencies, below 3 MHz, such as the mast radiator antennas used for AM broadcasting, require the radio transmitter to be electrically connected to the Earth under the antenna; this is called a ground (or earth).
A random wire antenna is a radio antenna consisting of a long wire suspended above the ground, whose length does not bear a particular relation to the wavelength of the radio waves used, but is typically chosen more for convenient fit between the available supports, or the length of wire at hand, rather than selecting length to be resonant on ...
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.
The ground also serves as a ground plane to reflect the radio waves. The antenna is fed power between the bottom of the mast and ground so it requires a grounding (Earthing) system under the antenna to make contact with the soil to collect the return current. One side of the feedline from the helix house is attached to the mast, and the other ...
Made in the U.S. The white-, black-, bronze- and custom-colored flagpoles are available for residential and commercial locations. Small flagpoles and flags are also available.
In radio communication, a ground dipole, [1] also referred to as an earth dipole antenna, transmission line antenna, [1] and in technical literature as a horizontal electric dipole (HED), [1] [2] [3] is a huge, specialized type of radio antenna that radiates extremely low frequency (ELF) electromagnetic waves.
Colorado head coach Deion Sanders issued a warning to NFL teams Friday − don’t draft Heisman Trophy winner Travis Hunter if you won’t let him play both ways.. Sanders said this on "The Rich ...
A member of the Ohio General Assembly wants to make flag planting at Ohio Stadium a felony. Yes, seriously. Republican Josh Williams of Sylvania Township introduced a bill titled the “O.H.I.O ...
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