to find gold will require you to dig EVERY non iron junk signal. they can be anywhere from a foil reading to just under a zinc penny.Coins are easy to ID because they are the same metal an shape,but gold,you got 8k,9k,10k,14,18, etc an millions of diffrent sizes an shape an they will all read diffrent.Take a pull tab in perfect shape,get a reading,then put a bend in it,it will read diffrent, then put a twist in it,again a diffrent reading,but it is still the same metal an weight.