These are air tests only:
Discrimination is set at 38 with my Gold Bug using the 11"DD Omega Coil: Penny at 12" deep, nickel at 13", dime at 11",
quarter at 12", half dollar at 13".
.01 ounce of gold (.3 grams or 6 grains) at 5" deep, 1 grain of gold at 2 1/2", pull tabs at 15", 22 bullet shells at 11".
Discrimination is set at 38 using the standard 5"DD Coil: Penny at 10" deep, nickel at 11", dime at 9",
quarter at 10", half dollar at 11".
.01 ounce of gold (.3 grams or 6 grains) at 5" deep, 1 grain of gold at 2 1/2", pull tabs at 10", 22 bullet shells at 8".