I know this is probably a question for Whites... What causes 2 metal detectors to cross talk. Is it the frequency? Is there any way to stop it? My wife and I enjoy MDing together but anytime we're within approx 50 ' of each other my MXT Pro starts acting strange. Her MXT 300 doesn't seem to be as effected by it. This is a bummer as we like to be next to each other when we check out the beaches. Thank you....HH Jack and Judith from NH