I own a 250 and i don't know if it's me doing something wrong or the machine itself. it false hits alot. I'm in coin mode and it will sound of in iron (which is disc. out) and i'll go back over it and its silent and just marks on the screen. to be honest it sounds off on alot of disc. out items. its frustrating and honestly ends my detecting early. all my connections are tight and my cord is wrapped as it should be. Maybe it's normal and i'm expecting to much out of this machine (my 1st) bt to me if a item is notched out it shouldn't sound off. Also i'll add that i keep dropping the sens. also but it still happens.
darrin
darrin