Hi WM6
In this case, I agree with you it is virtually impossible to detect an object at a distance of 800m even if it was on the soil surface and as small as 100 grams of gold, even if it was also buried 10,000 years. this kind of statement discredits the reputation of this forum and its members. Morgan and Andreas who certainly more experience than me can confirm that it is difficult to get a sensitivity greater than 20 or 30m.
Best Regards
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