Unfortunately until now I have not much experience on the real ground, but only in the test field and for that I await the result of others who have realized my LRL. In real ground I found a cartridge case (I think of brass) 1 meters away and 5 cm deep. In field tests the sensitivity is about 3 m to 5 silver coins 25cm deep. The maximum sensitivity is in the south north direction. In real terrain I had several signals but not confirmed by the metal detector, I suspect because they are too deep. However accurate signals were not due to the compass or sky effect .
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