Non-Repeating Signals?

I usually don't dig any non-repeating signals I come across when detecting. However, I started thinking about what I could be missing and what could be the cause of them. I set up a test area of sorts, with a coin surrounded by some "trash" and got the same non-repeating signal. What do you do if you come across a non-repeater? Can you lower the sensitivity or something in order to find the good target? Or do you just dig it as is? Any help is appreciated.

Try sweeping your coil from several different directions, if that doesn't work, move over a few feet, start sweeping new ground, then when your machine re sets, go back to where you got the non repeating signal. It seems to work 4 me, I think the computer in the machine might be stuck, and needs the new ground to reset, try it !! Rich.