Hi Carl, That's not weird. That's rf. I have one of those remote tuning knobs on my omni 6 plus and when I set it next to the Centurion amp just right, I can get it to tune down as i speak into it. -- FAQ on WWW: http://www.contesting.com/FAQ/tentec Submissions: tentec@contesting.com Administrative requests: tentec-REQUEST@contesting.com Problems: owner-tentec@contesting.com