Hello friends I need your advice, my terra 705 has a coil of 7.5 kHz DD and I will buy a roll of 18.75 kHz, I hunt in soils with low mineralization, with the coil of 7.5 Khz good game but varies greatly by showing the ID of the detected objects, I believe that if pot with concentric coil of 18.75 Khz IDs will be displayed more clearly and with less variation, which bought coil? of 10.5 "DD 18.75 kHz, or the concentric coil 9 " of 18.75 kHz.
Have a nice day.
Pardon my English is google translator.
Have a nice day.
Pardon my English is google translator.