On Jan 10, 10:37*pm, Tom Horne wrote:
I have a collinear J pole that I made out of copper pipe. *It is
mounted on a galvanized iron coupling at the top of a piece of
galvanized iron pipe. *I want keep all parts of the mount at ground
for lightning protection while avoiding corrosion between the two
types of piping. *If I use a dielectric union to connect to the
galvanized iron mounting but I still bond both the support pipe and
the antenna base to ground can I avoid the galvanic action that
already caused the two pipe threads to gall.
--
Tom Horne


I transitioned from galvanized to brass to copper by putting a brass
union between the antenna and mast.

Havent had any problems. I also use anti-sieze.

Jimmie