sounds to me like maybe you need to watch a few you tube videos on the concept of ground balancing a detector. Once you learn , you will be mad at yourself for trying to make things so hard. it is a very simple little trick. You want to tune the machine to make the same pitch sound on the ground as in the air. its just that simple but its a little more tricky making that happen. Other stuff...the G.B. tuning pod is 3and 3/4 turns. turn one direction until you feel a very slight resistance. STOP ...turn back the other way about 2.5 turns. That puts you about in
the middle. cut sensitivity way back. Now in all metal , try to find a spot with no signal to adjust G.B. watch some videos and read the manual. If that doesnt work , you can call me on the phone
