Tired Rooster
New member
I've read in some of the more recent posts talk about GB numbers in relation to which coil type may or may not work the best in a given area. ie (lower GB # may mean DD HF works best. Higher GB# may mean LF coil may be best). Question is...is the GB # being referred to simply the # that is on the screen once the detector is ground balanced? Also......if this is the case, I guess that means that the lower the #, the more mineralized the soil? Thus the higher the # the milder the soil? I know that these type of questions are always popping up. But this is not so much a coil question as it is a question about the GB # that is on the TID screen and what this means about the soil type.