sky wave

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Related to sky waves: ground waves

sky wave

n.
A radio wave that travels upward.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

sky wave

n
(Telecommunications) a radio wave reflected back to the earth by the ionosphere (ionospheric wave), permitting transmission around the curved surface of the earth. Compare ground wave
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sky wave - a radio wave that is reflected back to earth by the ionosphere or a communications satellite; permits transmission around the curve of the earth's surface
radio emission, radio radiation, radio wave - an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m
ionospheric wave - a sky wave that is reflected by the ionosphere
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
However, the radar frequency should not fall below the maximum usable frequency (MUF) since that would invite radar clutter from sky waves. The ideal frequency is therefore between 40 and 50 MHz.
Hillier explained the reason for selecting these sites based on the low level of interference and their ability to pick up HF sky waves. Both of these sites are controlled from Canberra.
The ground wave tends to follow the Earth's surface, while the sky wave is refracted back down towards the ground by the D-layer ionisation.