I currently have a wire T-vertical with a 75-ft. vertical portion and a 75-ft. topload wire over about 60 radials. Feedpoint is around 25 + j0 at 1.825 Mhz, which I match with a toroid 1:2 unun. The
Among other things, the time to switch over... I've just spent a couple of weeks building a new switching arrangement for my switched L networks without any performance increase other than that the
Complexity and loss in the unun. :) Why not go further (that is, more toploading) and take the feedpoint impedance to 50 +JX. Now you can match it with nothing more than a capacitor in series that su
Steve, 1. You end up with a larger antenna 2. You should have longer (and more) radials as moving up the current maxima up moves the return current maxima away from the base of the antenna. 3. You ma
I currently have a wire T-vertical with a 75-ft. vertical portion and a 75-ft. topload wire over about 60 radials. Feedpoint is around 25 + j0 at 1.825 Mhz, which I match with a toroid 1:2 unun. The
"...You should have longer (and more) radials as moving up the current maxima up moves the return current maxima away from the base of the antenna..." ** ...So, by making an "extended" T antenna--muc