Can someone explain the whole frequency thing to me? Is it the higher frequency the deeper it can go or the better target id it will have..or neither? Ive been looking at new detectors. for instance the at pro has 15 mhz and the ace 350 has 8.25. is the at pro going to get alot deeper than the 350? also i looked at the frequency on the explorer se and it was 1.5-100. whats that all about. any info would be appreciated. thanks