You might want to try http://www.ask.com and post the question What is a goniometer? I did and got a fair amount of information in response. 73, Joe Feustle, N8JF -- FAQ on WWW: http://www.contesting.com/FAQ/topband Submissions: topband@contesting.com Administrative requests: topband-REQUEST@contesting.com Problems: owner-topband@contesting.com