Roger Gt wrote:

One Ground in a square foot of copper clad on the keel. (Salt water sailor
only)

I guess the big steel/iron ballast keel (couple of thousand
pounds AIUI) on bottom of my Westerly would make a 'good' RF
ground? Connect to SS keel bolt/s accessible in bilge. Taking
other precautions for elctrolysis and/or 'ground' currents from
shore power?
Terry.