Good point Don!

That's why I use stainless steel hardware and ICE 602 copper/aluminum anti-oxidant paste.

Glenn - KD0Q

On 12/30/2013 14:29, Don Wilhelm wrote:
Hmmm, An aluminum bar tied to a copper wire! Be aware that there will be oxidation at the junction point due to dissimilar metals unless special bonding is used to slow (but not stop) the oxidation.

Just something to bear in mind.

73,
Don W3FPR
On 12/30/2013 3:23 PM, KD0Q-Glenn wrote:
Everything in the shack is grounded to an aluminum bus bar across the back of the operating table which is tied with #6 solid copper to the same point as the tower and AC Main grounds.

Just for reference, the antenna is a 260ft OCF Inverted Vee at 75 ft using a Balun Designs #4115ocf 4:1/Choke combination balun. Coax shield is grounded at the top and bottom of the tower.


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