On 1/6/2020 5:47 AM, jimlux wrote:
On 1/5/20 7:11 PM, Jim Brown wrote:
What I HAVE done (about ten years ago) was to add a second #10 THHN to
my Tee vertical for 160M, spaced roughly 8-10 inches from the first,
wired in parallel top and bottom. The vertical section is 100 ft. The
measured result was to approximately double the SWR bandwidth.
So, going from l/d of 12000 to 120 -> that's a big, big difference, and
the change in SWR bandwidth would be expected.
Yes. And this technique is probably older than I am.
73, Jim K9YC
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