I set the dials to the green areas as seen on the 4psi, however I kept getting false signals, and found rock under the sand some 6" down.
These false signals also happened whenever I touched the ground with the coil. when away from the rocks it got a bit better but still sounded when touching ground or most rocks, I also used my pin pointer, carrot look alike, and was getting sound of metal detected. Are the rocks around the trearddur bay metallic with ore ?
ps I did on each occasion let the coil rest on the sand to stabilise. the lifted it high off the ground the back to detecting
Or is it me doing it all wrong,
Any tips, about settings and detecting on rocky beaches covered in sand