I got my Makro 2 today and took it out to a local park, my backyard and the side of a school. The problem is the chatter is non stop, it got so annoying and at one point it was so bad I couldn't hear a good signal, I turned it off and came home. I tried every setting and had the gain down to 16 before it would stop but it would not give a signal on a 2" deep quarter at that setting. It was a chattering the second I put batteries in it. Any tricks? I have tried it in every mode and it's still the same except for in all metal where there is a constant tone. I was using it mostly in two tone. I tried turning disc all the way up to 90 or whatever it goes to to block out everything except silver and it was still doing it, shouldn't it be silent like that? I'm used to my Vaquero which is dead silent, is this how these are supposed to be?