[CQ-Contest] 15m Yagi question

john at kk9a.com john at kk9a.com
Fri Dec 11 19:25:46 EST 2020

At least one of the big US M/M stations uses copper grease. After seeing the
tremendous antenna corrosion in Aruba between stainless steel and aluminum I
have become more cautious about using dissimilar metals in any environment.
Copper is a little closer to aluminum on the galvanic table than stainless
steel is and perhaps the grease keeps the water (electrolyte) out so it is
effective but I do not use it.

John KK9A  aka P40A

Jukka Klemola OH6LI wrote:

Note !
Any grease with copper powder .. not recommended for Aluminum to Aluminum

Jukka OH6LI

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