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direction finder

direction finder

The Columbia Encyclopedia, 6th ed. | 2011 | Copyright

direction finder electronic device used to determine the position of a ship or aircraft. In a simple direction finder a radio receiver is equipped with a revolving directional antenna. The antenna receives the strongest radio signal when it is pointing directly at a transmitter. By determining the direction of two land-based transmitters, a navigator may plot his position by triangulation. Direction finders have been replaced in many applications with more accurate systems, such as radar and satellite navigation systems (see satellite, artificial ).

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"direction finder." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

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"direction finder." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-directio.html

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direction finder

The Oxford Pocket Dictionary of Current English | 2009 | Copyright

di·rec·tion find·er • n. a special radio receiver with a system of antennas for locating the source of radio signals, used as an aid to navigation.

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"direction finder." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

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"direction finder." The Oxford Pocket Dictionary of Current English. 2009. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-directionfinder.html

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direction finder

The Oxford Essential Dictionary of the U.S. Military | 2001 | Copyright

direction finder a special radio receiver with a system of antennas for locating the source of radio signals, used as an aid to navigation.
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"direction finder." The Oxford Essential Dictionary of the U.S. Military. 2001. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

"direction finder." The Oxford Essential Dictionary of the U.S. Military. 2001. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O63-directionfinder.html

"direction finder." The Oxford Essential Dictionary of the U.S. Military. 2001. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O63-directionfinder.html

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Free newspaper and magazine articles

Apparently, no one gets lost anymore.(Federal Aviation Administration closes...
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Magazine article from: Product News Network; 7/29/2011
Brown will use Queen's Speech as a direction finder.(News)
Newspaper article from: The Birmingham Post (England); 11/5/2007

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