This book is ideal for:
Proper Faraday shielding on coils eliminates capacitive interference from wet grass and soil. Inside The Metal Detector George Overton Carl Moreland.pdf
: High-performance tech typically used for deep hunting and in salt-water or highly mineralized soil. This book is ideal for: Proper Faraday shielding
PI machines are the heavy lifters of the detecting world—able to ignore mineralized soil (the bane of VLF users) and punch deep for relics. However, they are notoriously difficult to engineer due to voltage spikes and timing issues. The Overton-Moreland breakdown of PI circuits simplified this complex switching logic. They explained the "sampling" window—the fraction of a microsecond where the detector listens for the decay of the magnetic field. Inside The Metal Detector George Overton Carl Moreland.pdf