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aerial |
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aerial: see antenna antenna (ăntĕn`ə) ..... Click the link for more information. , in electronics. antennaor aerialComponent of radio, television, and radar systems that directs incoming and outgoing radio waves. Usually of metal, antennas range in shape and size from the mastlike devices used for radio and television broadcasting to the large parabolic reflectors used to focus satellite signals and the radio waves generated by distant astronomical objects and reflect them toward the centrally located receiver. Antennas were invented in the 1880s by Heinrich Hertz; Guglielmo Marconi made many improvements. aerial 1. of or relating to aircraft 2. the part of a radio or television system having any of various shapes, such as a dipole, Yagi, long-wire, or vertical aerial, by means of which radio waves are transmitted or received How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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