Ground is a relative thing and there is no such thing as absolute ground
even when you're looking at earthworms. There is always an impedance
and your 14 or 20 feet of ground wire will have some. The more bends,
dips, and corners the higher the impedance will be. It will be resonant
at some frequency. If you ever take a lightning hit, the current
through your ground wire will create a potential difference (voltage)
between the ends of your ground wire which could wipe out your
equipment. This isn't a DC current - it's RF. The impulse of the
lightning strike is composed of a set of all frequencies. The geometry
I prefer for the ground system is the asterisk pattern. This
arrangement minimizes the potential difference from one end of your
ground system to the other and consequently from one piece of equipment
to the other. Good luck & 73. Tim, W2UI
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