Well, I was doing some experimenting with my nokta in the middle of a bean field with no power lines around. I was using a set of gray ghost headphones, and it had a lot of noise. I then switched over to a Z-Lynk wireless system by Garrett, and the machine was quiet as a mouse except for an occasional blip from hitting a hard bean stalk. So if anyone else is having the same problem, try changing headphones. Thanks to Druid for his advise.
Lloyd
wmsbgdigger
Lloyd
wmsbgdigger