I expect I'm an outlier, in a couple of respects. I have 30 x 70-foot
radials on the ground under my 160M inverted L. I'm sure this will
bother people, but I made up the radials from a spool of about a mile of
AWG 20, silver(!)- plated copper wire (military surplus) that I got at
Dayton years ago. I haven't yet entirely finished the deployment (it's
been too darned cold here) but I'm wondering about the impact of using
such small-gauge wire for this purpose, even with the silver.
73, Pete N4ZR
Check out the new Reverse Beacon Network
web server at<https://reversebeacon.net>.
For spots, please use your favorite
"retail" DX cluster.
On 11/18/2022 5:10 PM, Jim Brown wrote:
On 11/18/2022 1:28 PM, Wes wrote:
By serendipity, I measured the input impedance of one radial against
all of the others and it's resonant at 1.84 MHz.
About ten years ago, I did the experiment of modeling a pair of
radials cut to a free-space resonance, starting with them as close as
NEC2 would allow it, and raising them in small increments to several
feet. VF with that closest contact was about 0.7. By 3-4 ft, was close
to free space, taking the #14 THHN jacket into account. I also did
some measurements of THHN #14 pairs laying on the ground, but don't
recall the result.
73, Jim K9YC
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