A
Anonymous
Guest
I've become interested in PI machines and have some questions about coils and the field shapes they produce.It appears there are two types, the monoloop and the widescan. I'm wondering if the monoloop field is concentric and the widescan is bowl shaped.Also can any PI use either one if available(eg Sandshark, Minelab SD series)? Finally since the widescan has much greater coverage, works better under highly mineralized conditions, and supposedly only loses a tiny amount of depth I'm wondering why more are not in use. Of the detectors I've seen so far only the Tesoro and Minelab use them. Thanks, Eric