Very Low Frequency WADI - quality-geophysics
Abem from Sweden with the WADI™, there are several international manufactures of VLF Equipment, including Geonics from Canada, (EM-16) and IRIS from France (T-VLF). VLF geophysical survey equipment is inexpensive and seemingly simple to use, however, the underlying basis is highly complex. In the absence of subsurface
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