Helmut Wabnig [email protected] --- -.dotat wrote:

snip

I have seen people talking about NVIS antennas for DX.

w.

Which makes no sense as NVIS stands for Near Vertical Incidence Skywave,
which means most of the power goes near vertical so the maximum
communication range of that mode is around 400 miles.

This is a short article that talks about NVIS antennas:

http://en.wikipedia.org/wiki/Near_ve...idence_skywave


--
Jim Pennino