Nock here, hope all is doing well. I have been told that my xterra 70 is capable of finding a target at 9 inches. So far I have dug to maybe 6 to find a coin. I know that there are deferent conditions in the soil and the positon of coin itself that effects the singnal, but has anybody dug a coin at 9 inches or more? Conserning faint signals. On a deep signal that might be faint will it be a repeatable tone as it would sound in a shallow target. thanks to any that might your thoughts. good hunting to all going tomorrow morning myself.