Bill Orr's email address is w6sai@aol.Com. You could always drop him a note and ask him. He's always responded quickly to my questions and comments. Doug Person -- W4DXV -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com Search: http://www.contesting.com/km9p/search.htm