Using an XP ORX with elliptical Coil, I just completed a trip to Durikai GPA. Found a heap of shotgun pellets, end caps of shot gun cartridges, old fence, bullets and enough hot rocks to fill a truck.
I had a lot of trouble with Hot rocks and mineralized red clay. I tried every combination of setting I could think of. Followed Clegys XP ORX Settings for Gold in Australia when the going gets a little tough in mineralised areas. Kept GB exact all the time. Different Freq, Sensitivity levels, Threshold. I should have followed his last bit of advice and gone to the pub.
I did find one piece of gold.8g, but this was because someone else pointed me to a target with a GPZ7000. So I dug and persisted with every hot rock and bit of clay I found in the same hole until I located the gold.
In an area where I knew there was gold, I found it impossible to reduce the ground noise down to a level where I could start deciding what was a target. There where areas where I could get the ORX stable and Quiet in between areas of mineralized ground. The quiet areas is where I found all the trash targets. The only setting I didnt try was Disc IAR. When I got home I read more and maybe a 2-3 on IAR may have helped. There is next to no advice on any forum or Youtube related to Disc IAR use on the ORX for Gold 1 or 2. Coin settings for DISC is explained a bit but the settings are different.
Anyone got any advice