In my understanding of things, NVIS (Near Vertical Incidence Skywave) just
means the use of low horizontal antennas on the low bands.  That's what most
hams in most locations have always had on 75 meters.  Your antenna is
probably in that classification already without any further change.  It
might be a little more efficient, even at the high radiation angles you
seek, if you could raise the ends, but you're probably almost there already.
I heard you check into the Florida net on 3950 one night, and your signal
was kinda weak up here compared to others on the net.

Lloyd Rasmussen, Kensington, Maryland
Home:  http://lras.home.sprynet.com
Work:  http://www.loc.gov/nls
 
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Junior Lolley
> Sent: Saturday, November 20, 2010 6:39 AM
> To: [log in to unmask]
> Subject: nvis antenna
> 
> I have a 132 foot dipole I want to use for NVIS.
> I have sandy soil here in Florida.
> What is the best height off the ground to have each end?
> It is 30 foot center on the tower.
> I now have each end about 10 foot off the ground.
> I am trying to mess around with NVIS a little bit.
> if anyone can give me a little info it would help.
> Thanks very much.
> 
> 
> 
> Junior Lolley KG4ITD Liberty County E. C.