There's no such thing as a halo effect....the only halo you will find is the smear of BS around your mouths !!!!!
CMB
ps....jk, methinks the nexus coil design thread has gone a wee bit OT.....
CMB
ps....jk, methinks the nexus coil design thread has gone a wee bit OT.....

Of course, and this is the reason why electronic LRL acts good with old targets. I found a couple of 34 copper coins –25 mm diam each– and comprobe how the surrounding earth was affected by copper migration... like electrochemistry, galvanization of the soil! This enlarge the size of the object/s. Maybe is not viewable in an only coin, but yes with 34 corroded copper coins...
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