Am still new with the E-Trac and metal detecting, about 2 months. I have the E-Trac's threshold pitch set to 28. With that setting when I swing the coil over a coin it really screams out. Sometimes though the high pitch only chirps for an instant. So I go over that spot, round and round. If I keep getting that chirp I dig it. Of course most of the time I find nothing or a bent nail. Most of the parks I hunt have been hunted to death. So I dig a lot of signals like that. I have found 8 silver coins in these parks. I would say half of them were "iffy" signals. Today I was hunting one of those same parks and had the exact "chirp" signal. I couldn't even get a consistent number to come up because there was junk all around it, but the "chirp" kept me interested. So I dug it. I dug about an 8" deep plug and laid it over. Probed the hole and there was something there even deeper. Dug a bit more and saw silver. I knew it was a silver quarter but it was covered in mud. So I got my water bottle out and gingerly washed the mud off of it. 1943 silver quarter. I nicked it with my shovel. Oh well. Love finding silver coins in, so called, hunted out parks with the E-Trac.
Dan.
Dan.