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331.5 (307.1 + 24.4 (structure + antenna)) Controlled implosion after aircraft crash caused serious damage five days earlier Rebuilt in 2003, the new tower has almost the same height, i.e. 326.8 m (307.1 m for the structure, but the antenna is shorter (19.7 m)). Angara transmitter, Northern Mast, Angara, Russia June 6, 2001
A short antenna pole next to a house Multiple Yagi TV aerials. Antennas are commonly placed on rooftops and sometimes in attics. Placing an antenna indoors significantly attenuates the level of the available signal. [19] [20] Directional antennas must be pointed at the transmitter they are receiving; in most cases great accuracy is not needed ...
The pointed lower end of the antenna ended in a large ceramic insulator in the form of a ball-and-socket joint on a concrete base, relieving bending moments on the structure. 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.
Chief Wiggum shows the Simpsons a video to explain how the restraining order works. Homer constructs a twenty-foot pole for Lisa to ensure that Bart stays the correct distance away from her. Because there is no place at school for Bart to keep the proper distance, Bart is forced to learn in Groundskeeper Willie's shack and must eat lunch outside.
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 ...
A monopole antenna is a class of radio antenna consisting of a straight rod-shaped conductor, often mounted perpendicularly over some type of conductive surface, called a ground plane. [ 1 ] [ 2 ] [ 3 ] The driving signal from the transmitter is applied, or for receiving antennas the output signal to the receiver is taken, between the lower end ...
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The discone antenna has a useful frequency range of at least 10 to 1. [2] [3] When employed as a transmitting antenna, a properly constructed discone is just as efficient as an antenna designed for a more limited frequency range. The extra bandwidth comes from the controlled taper and large termination radius of the cone.