[CQ-Contest] 15m Yagi question

[kdutson at sbcglobal.net]

Yes, copper has become quite popular.  A friend used it on his Hustler
vertical and asked me to help him put it together and erect in the back
yard.  It was cool and breezy that day so I wore a black wind breaker
jacket.  Unfortunately, some of the copper lube got deposited on my jacket.
So far, I have found nothing that will clean that jacket.

I have used both Penetrox and Aluminox with success.  I will likely stay
with those lubes, as I find joints are easily maintained over decades of
outdoor installations.

73, Keith NM5G

-----Original Message-----
From: CQ-Contest <cq-contest-bounces+kdutson=sbcglobal.net at contesting.com>
On Behalf Of john at kk9a.com
Sent: Friday, December 11, 2020 6:26 PM
To: cq-contest at contesting.com
Subject: Re: [CQ-Contest] 15m Yagi question

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
connections.


73,
Jukka OH6LI

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