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Re: Cyclone fence for ground

Original poster: Ed Phillips <evp@xxxxxxxxxxx>

Based on practice with high-frequency vertical antennas, a ground plane (sheet or screen or chicken wire or whatever) with radius equal to the height of the coil should be more than adequate as an RF ground. In the "radio case" even 4 radial wires of the same length (longer can't hurt) is almost as effective and would be worth trying with a TC since they would be lots more convenient than spreading anything over the surface. A REAL ground for 60 Hz safety is also in order but the lead can be much longer. A ground rod driven into dry soil wouldn't do much of course, but I can't see any reason why a water pipe or neutral on the AC power supply (assuming suitable filtering of the coil power input) wouldn't be equally good.