Dear Topbanders,
In preparation for the upcoming 160 meter contest, I'm trying to
decide if it is worth the effort to increase the support height
of the vertical portion of an inverted "L".
My ground resistance is estimated to be 17 ohms and this is about as
low as I can go given the limitations of my property. Estimate based
on ON4UN's book data.
I'd be grateful if someone more computer-literate than I could
determine the dB loss compared to a "ideal" full 1/4 wave vertical
for each of the following cases. Assume whatever toploading is
required is acomplished by the horizontal portion of the inverted
"L."
Case 1: Vertical portion 33' tall
Case 2: Vertical portion 50' tall
Case 3: Vertical portion 60' tall
Thanks in advance!
73,
Tim Colbert K3HX
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