Antenna

An antenna is a transducer designed to transmit or receive radio waves which are a class of electromagnetic waves. In other words, antennas convert radio frequency electrical currents into electromagnetic waves and vice versa. Antennas are used in systems such as radio and television broadcasting, point-to-point radio communication, wireless LAN, radar, and space exploration. Antennas usually work in air or outer space, but can also be operated under water or even through soil and rock at certain frequencies for short distances.

Physically, an antenna is an arrangement of conductors that generate a radiating electromagnetic field in response to an applied alternating voltage and the associated alternating electric current, or can be placed in an electromagnetic field so that the field will induce an alternating current in the antenna and a voltage between its terminals. Some antenna devices (parabola, horn antenna) just adapt the free space to another type of antenna.

Thomas Edison used antennas by 1885. Edison patented his system in U.S. Patent 465,971 . Antennas were also used in 1888 by Heinrich Hertz (1857-1894) to prove the existence of electromagnetic waves predicted by the theory of James Clerk Maxwell. Hertz placed the emitter dipole in the focal point of a parabolic reflector. He published his work and installation drawings in Annalen der Physik und Chemie (vol. 36, 1889).

Antenna Mp3 Downloads

Download audio files (mp3 and wma) with Antenna Songs using these download websites. The list will be updated perciodically.

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For the full list of Antenna mp3 downloads please use the search option of each of the download networks presented here. Read the terms and conditions of each free full mp3 download network before using the services. Here is a list of some of free Antenna mp3 downloads we find using the search feature on the presented download networks: <br /> <b>Warning</b>: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in <b>/home/mplate3/public_html/artists/template/page.php</b> on line <b>72</b><br />

Antenna Ringtones

You can get any Antenna ringtone you like (realtone, polyphonic, mono tone, mp3 ringtone) using the next service:



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For the complete list of Antenna ringtones please see ringtones page after you confirm your phone number. A list of high quality Antenna ringtones available as poly ringtones, monotones, real tones or mp3 ringtones.

Antenna Music Videos

Music Plate music videos with myspace codes, see Antenna music videos section search for music videos and get your myspace music code.

Antenna Lyrics

Get full Antenna lyrics on music plate Antenna lyrics page. Use the search option if the target page is not correctly displayed.