I've put up 2 galvanized masts and will be connecting them to ground this weekend. Since the masts are galvanized and to reduce dissimilar metal corrosion is it ok to use the copper or brass clamp to connect the ground wire or should I use the zinc treated clamp?
Thanks in advance.
Industry standard would be to use a CaldWeld connection, but that's outside the scope of most amateur installs.
From the Motorola R56 document:
"Grounding connections to galvanized towers shall be exothermally welded whenever possible.
When exothermic welding is not possible, the tower grounding conductor shall be constructed of
tinned-copper (IEC 61024-1-2, section 5.2)."