Metal Detector Coil Sizes and Types: DD vs Concentric vs Mono
How DD, concentric and mono search coils differ in field shape, ground handling and pinpointing, and how to choose the right coil size for trashy sites, open ground and gold country.
How DD, concentric and mono search coils differ in field shape, ground handling and pinpointing, and how to choose the right coil size for trashy sites, open ground and gold country.
Coil height, swing speed and overlap explained: how to swing a metal detector so you cover ground thoroughly, hear faint signals and avoid the mistakes that cost depth.