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I was having a horrible time distinguishing between signals, as well as pinpointing (though I now realise I ignored the pinpointing function on the machine). I wonder if my settings could use some adjusting? I was alternating between all metals and coins, with iron discrimination on and one notch from full sensitivity - any advice on that front?
I also struggled to locate my finds, I would strike a good signal and attempt to dig, but the signal would disappear once I hit 4 or so inches down and wouldn't come up in anything I'd previously dug. The soil is very very wet and hard to manage - I even managed to hit a layer of clay beneath the soil.
Any advice would be much appreciated.
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White's TDI SL
As for the signals vanishing, it sounds like you were digging false signals (high sens + wet ground) or very small bits of metal. In my limited experience I find lowering the sensitivity helps with this.
Another thing I noticed about the Ace that doesn't happen on my Nox is that if you open up the hole then scan the soil the signal can sometimes just completely vanish if the item is in the dug up earth but now upside down. Turning the earth back over, to grass side up, the signal will return. Normally this seems to happen with tiny things like ring pulls or bits of lead that were originally near the surface but the detector reported they were deep.
I'd leave the machine on zero discrim mode and dig everything that rings solid when scanned one way then 90 degrees the other way.