John,
I have a "T" antenna here similar to the one being discussed. I have about
65 feet vertical to work with, but, I decided to elevate the antenna about 8
feet above four 1/4 wavelength radials (the ground here is solid and very
uneven rock). So I ended up with about 57 feet of vertical in the "T". The
horizontal wires are some 50 feet plus. I just adjusted the length of the
horizontal wires for resonance on 1830. I match the antenna to 50 ohm coax
by running a second vertical wire about a foot from the first one and
feeding the antenna as a toploaded folded monopole. Seems to work.
Stan W7AWA
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