File:ShortWaveFadeNOAA.png
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ShortWaveFadeNOAA.png (456 × 513 pixels, file size: 34 KB, MIME type: image/png)
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[edit]DescriptionShortWaveFadeNOAA.png | The usage frequency window for radio propagation lies between the lowest and maximum usable frequencies. When the window closes, as shown here, a shortwave fade occurs. | ||
Date | |||
Source | NOAA: http://www.sel.noaa.gov/info/Iono.pdf | ||
Author | Dave Anderson and Tim Fuller-Rowell | ||
Permission (Reusing this file) |
http://www.photolib.noaa.gov/aboutimages.html | ||
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Licensing
[edit]Public domainPublic domainfalsefalse |
This image is in the public domain because it contains materials that originally came from the U.S. National Oceanic and Atmospheric Administration, taken or made as part of an employee's official duties.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:25, 12 March 2007 | 456 × 513 (34 KB) | Sebman81 (talk | contribs) | {{Information |Description=The usage frequency window for radio propagation lies between the lowest and maximum usable frequencies. When the window closes, as shown here, a shortwave fade occurs. |Source=NOAA: http://www.sel.noaa.gov/info/Iono.pdf |Date=1 |
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