[AMRadio] new antenna and matchbox a bust.
EdwMullin at aol.com
EdwMullin at aol.com
Mon Jan 29 21:30:34 EST 2007
Quote: Brett, N2DTS
"Well, I only have about 95 feet between the trees max.
If I was to dangle ends, I would have to shorten the antenna
out past the branches, say 7 feet each side, then do
the dangle, which really would not work.
To much dangle..."
First, Nice QSO Sunday night.
Second, my antenna is a full 80m dipole supported at 75ft by two pinetrees
that are <50ft apart, that means that there is a LOT of Dangle there(around
35 ft or so I think). I just pulled the support lines over the trees, and the
ends of the dipole actually drape over the top and down the back of each
tree. Its insulated #12AWG stranded wire, fed with cheap brown 300 ohm twin lead,
that drops down to a choke balun inside the attic (15 turns at 4.5 inch
diameter). This is definitely NOT an optimal setup. BUT I do get out, and I've
been heard as pretty far off on AM, and work the North East with No Problems.
(I run a Valiant at about 120watts output). I can load it up on any band
except 160, using my el-cheapo MFJunk tuner. (160 causes quite a light show)...
The biggest problem I have with it is that the pines are always dropping
branches after storms and sometimes they pull down the antenna or part of it
with them.
SO if there is a significant vertical portion to your dipole, don't sweat
it. It will just add some vertical polarization, and change the pattern, but
using trees will skew that anyway.
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