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over-the-horizon radar |
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over-the-horizon radar [′ō·vərthə hə′rīz·ən ′rā‚där]
(electromagnetism) Long-range radar in which the transmitted and reflected beams are bounced off the ionosphere layers to achieve ranges far beyond line of sight. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | The lower frequencies associated with OTH radar can bounce off the ionosphere, whereas the very high frequencies (above one-half gigahertz) at which conventional radar operates cannot. |
OTH radar |
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