Pyledriver
Active member
I've had this come up several times with my machine-always in association with big iron. The ID will reach 99 but then on another swing display 'AO'. I called Garrett and they tell me this isn't a problem, but is a reading that indicates the ID is not within the designated range set for target ID's..hmmm. I did ask whether this was an 'overload' type signal that I used to get on my 'X' detector but they say it's not. Just wondering if anybody else has seen it and what the circumstances were.