seriousdetecting.comAnswer
May 20, 2026 - 11:07 AM
The C28 is designed to work in various soil conditions. The 11-inch size is less sensitive to mineralization than larger coils like the C45 17.5-inch, which makes the C28 a better choice for red clay, volcanic soil, and saltwater beaches. Run your CF77's ground balance settings to null out the mineral signal, and the C28 will separate coin targets from the ground matrix. If you hunt extremely mineralized ground, consider starting with smaller coils and stepping up to the C28 once you've dialed in your ground balance settings.
