A couple months ago I sent in my XT70, :cause it was erratic, and wouldn't lock on any numbers. When I got it back, it did the same thing, so I sent it back with a note. I got it back today, with the old coil, and a new DD med freq 101/2 inch coil. I've only tried it for a couple minutes in the house, but it seems to work ok. They have sure always done right by me. Just wanna give credit when it's due