"Might there be a problem using steel staples over copper wire? Isn't
there an opportunity for dissimilar metal corrosion?"
You're more likely to get noise from poor connections at the base of the
antenna than somewhere down the radial line. If you use bare stranded wire for
the radials, you'll eventually have corrosion between strands that would be
much more noisy than a decomposing staple.
My radials are less than standard one to another. I have stuff as large as #10
enamelled wire, RG 58 and as small as #28 coated wire. Any scrap wire 20' or
longer went into the ground. I've not had any discernable noise issues on
160/80.
Under the new verticals I'm using #18 coated (automotive stuff) that I found
really cheap online. It did a great job last Fall/Winter.
73,
Julius
n2wn
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