[ARRL-OK] Near Vertical Incidence Skywave (NVIS)

[Mark Conklin]

Attached you will find a interesting White Paper from DX Engineering 
about building a NVIS type antenna.  Thanks Lloyd KC5FM & Ron KB5UVC for passing this along.
 
Near Vertical Incidence Skywave (NVIS) is a propagation mode which uses high angle radiation to send signals almost straight up to be reflected back to Earth for very effective short to medium distance communications. This mode of operation makes itideal for in-state communications during disasters or other emergency situations. The military has used NVIS techniques for decades to provide short haul communication with other units on the ground. 
 
73,
 
Mark Conklin, N7XYO
Oklahoma Section Emergency Coordinator
Amateur Radio Emergency Service
918.232.8346
n7xyo at arrl.net
Follow me on Twitter @N7XYO

www.ARESOK.org