This place I have been hunting it is where a house was and they tore it down. The ground is funny , it is very hard to pick up a coin signal . I have been hunting for 15 yrs and never see this before. I have used 3 difference type detectors with little coils. Normally on a coin you get a high tone beep and when come back over the coin you get another beep ( like a cz 5 or mxt detector).. But on the ground all you get is a like a 1/4 of a beep and that is all you will get and the coin may only be 2" down. It is like a one was signal. Have any of you had this happen ????