I am having problems with my etrac in a civil war camp i recently found. The camp is littered with nails and other iron. I am running my etrac in TTF/manual sens around 26-28 and sweeping slow.Lets say for example their are 2 square nails a foot apart,i can go over one of em and it doesnt sound good but once i reach the other one it gives a good audio tone but its like its being interfered with due to the other square nail being so close thus causing a good audio tone. I turn the coil 90 degrees and its still acting like the other nail is causing a good signal.....is this what is refered to as falsing? Any suggestions? I actually brought my at pro this morning to compare and it doesnt have this problem at all. I dug 2 minie balls yesterday with the etrac,dug one this morning and it was an iffy signal due to all the square nails with the etrac and switched to my at pro and dug 5 and all were very solid signals......what is going on here?? I can not figure it out. Any help/suggestions will be greatly appreciated!