filternozzle
Member
I have a small part of a very thin 9ct gold ring, 3/4" in length and weights 0.31g. What I would like to know is why my GPX cant pick this up at all? I have tried every Soil timing, and adjusted RxGain, Stabiliser and Target vol. GB on and off, Discrim on 1 and turned off. 10x5 DD coil in DD and Mono, 11" AI coil in DD and Mono and finally a16" Mono. All to no avail. I have a friend who tried with a TDI Pro using a 14x10 Razerback coil could get it with GB on and off. Best performance with it off. Can anyone give an answer? Could it be anything to do with the fact the GPX doesn't pick up coke?