I've got a query re galvanic corrosion and radio transmitters.

A friend of mine lives on a steel Dutch barge moored in a sal****er marina.
He has a transformer isolated mains supply and a number of 'sacrificial
anodes' around the boat. On the boat side, the hull is isolated from his
mains wiring 'boat side'.

He plans to erect an antenna for HF use (amateur radio rather than marine
use) which, depending on the antenna type, may require an earth connection.
From the RF point of view, using the hull (and thus the salt water) would
give him a good RF earth but he is concerned re galvanic corrosion
problems.

I'm not an expert on galvanic corrosion but my logic tells me there
shouldn't be a problem- any currents would be AC and (I believe) only a DC
differential can accelerate galvanic corrosion.

Ideas, views, comments anyone?

--
Brian Reay
www.g8osn.org.uk
www.amateurradiotraining.org.uk
FP#898