I am going put up a Bobtail Curtain, but before I do it, I want to put up an elevated vertical (low ground plane?) so I will have a comparison. I am going to use it on 40M. So, what is your experienc
I have my 40m 4sq installed 9 feet above ground with elevated radials at that height and am very happy with it's performance. de Paul, W8AEF an use _______________________________________________ See
the loss reaches Doug, There are two loss mechanisms with elevated radials. The first is a "push against" loss. For every ampere flowing up into the antenna an exactly equal current must flow into t
For my 40m 4sq I use the top rail from chain link fencing (1 3/8" dia x 10 feet long) to support the elements. The far end of each radial is supported at the top of a 4' long aluminum tube that slide
--Original Message-- ends away from earth. How high do you think the lower end of a vertical dipole for 75 meters should be to be reasonably efficient? 8-10 feet? Or would I still need a ground scree
for 75 meters would I still need a Modeling programs have the largest error when used in situations like this (an actual measurement by Haagn and Barker of low dipoles show losses were significantly