Gunnar of bradford MN
New member
What you see is the great anoka sand , It is glacial and consists of granite and volcanic rock fragments ,I took one cup of this sand and cleaned out all the magnetic particles and set them on the left you can see how black it is and the rest on the right now in the drey sand i could get a dime down to 4" deep had to crank the gain to 10 and threshold at 1:00and disc all the way back if i turned the disq up to iron i totaly lost the signal same when only 3" deep i weted the sand to damp and got just a little better depth but i can see thear is a real diffrence between a ED 180 and an ED 120 my new name for this detector is the 4" max but it will do ok in the park