NVIS communications in the HF band
NVIS communications in the HF band Fundamentals of the propagation using near vertical incident skywave (NVIS) in the HF band, describing the geometry of the circuits and how to select…
HF NVIS Magnetic Loop Mobile Antenna
<p>&amp;amp;amp;lt;p&amp;amp;amp;gt;&amp;amp;amp;amp;amp;amp;lt;br&amp;amp;amp;amp;amp;amp;gt;http://en.wikipedia.org/wiki/Near_Vertical_Incidence_Skywave&amp;amp;amp;lt;/p&amp;amp;amp;gt;</p> http://en.wikipedia.org/wiki/Near_Vertical_Incidence_Skywave