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An efficient resonant antenna (1/4 wavelength or longer) produces a large-amplitude EM wave for a given feed power, and produces little heat. An inefficient antenna produces a small-amplitude EM wave for the same feed power, and converts most of the power into heat. Generally people don't think of radio-frequency radiation in terms of discrete.

Oct 31,  · Directed by Orcun Behram. With Gül Arici, Elif Cakman, Murat Saglam, Enis Yildiz. In a dystopian Turkey, the Government begins installing new TV antennas to homes throughout the country. Mehmet, a superintendent at a crumbling apartment complex, has to supervise the installation of the new antenna. When the broadcast it transmits begins to menace the residents of the apartment complex/10().

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Hence, end-fire antenna is suitable for being used in these applications [4]. The radiation characteristics of the end-fire antenna depend on the antenna structure through which the surface wave propagates and its magnitude. These antennas are like Yagi antenna [5], helix antenna with end-fire mode [6], and tapered slot antenna [7]. Today.

The Antenna Calculator for Half-Wave Dipoles. Enter your desired frequency (MHz) of operation (i.e. ). If you have no particular preference within a given ham radio band, then simply enter its center frequency (i.e. for the 40 meter band).

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If most of the strongest signals are from within 50 miles, an indoor antenna will work better. Whereas, if most come from a distance further than 50 miles, you will get some channels with an indoor antenna. I would recommend the Five Star indoor antenna. More indoor antennas here.

Dipole Antenna Calculator. The measurements below are for building a simple Dipole Antenna. The Wire Size can range from 16 AWG to 12 AWG. The larger the wire, the wider the bandwidth. The antenna is designed to be fed with 50 or 75 Ohm Coax Cable of most any length with a Balun. Place a Balun on the Antenna end of the Feedline.