Here’s a link to an old paper that was mentioned awhile back here on TowerTalk
that answers the conductivity questions about plating. Long story short: Silver
plating may not be as conductive as solid silver, and results are highly
dependent upon the plating process.
“Radio Frequency Performance of Electroplated Finishes” by A.M. Fowler, 1970.
http://k6mhe.com/n7ws/Plating.pdf
-Gary NA6O
> From: Bob K6UJ <k6uj@pacbell.net>
> Subject: Re: [TowerTalk] Fwd: (80 Meter yagi question) Cu <=> Ag
>
> Since rf flows on the skin of the tube, I don't understand why silver plated
> copper
> wouldn't be better than just copper.But what do I know, hihi
> BobK6UJ
> From: Hans Hammarquist via TowerTalk <towertalk@contesting.com>
> To: towertalk@contesting.com
> Sent: Thursday, October 12, 2017 1:26 PM
> Subject: [TowerTalk] Fwd: (80 Meter yagi question) Cu <=> Ag
>
>
> I saw somewhere that, unless you have solid, not electro-plated, silver you
> gain nothing plating silver on copper. Electroplated silver have lower
> conductivity than OFHC copper.
>
> Looks like polished copper is the way to go. I like the durability of Al
> though. Is polished and varnished copper the best?
>
> Go figure,
>
> Hans - N2JFS
>
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