Something is acting as an antenna. I made several hundred mile contacts with a 100w light bulb "dummy load" on 40m in the 1950's. Might be ground system is working as antenna or radio as found connection via other equipment. Be interesting to find out what you discover. 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com