machineman
Member
I think this has already been stated buy another member but I thought I would re post the general idea. After doing my experiment at the lake today. I wend and did some normal detecting with the 10x12 dd. As anyone who has one knows they love steel bottle caps. However if you get a good signal and then push pinpoint the bottle cap will start sounding at the edge of the coil from both sides and non iron targets will sound only in the middle. I tested it with about 100 targets more than half were caps and I knew they were caps before digging them. Thanks GunnarMN from u tube.