Hi Dave
I agree with all you have said to this point:
Earth losses are immaterial and the loop does NOT need to be kept away from
ground or
other lossy things.
This was my first series of loop tests because a lower leg running on the
ground (or even under) sure simplies the design. My tests indicated that if
the total conductor loss is as low as 0.8 ohms Rac you will definately see
major losses as you reduce the earth spacing below 5ft. Possibly your soil
conductivity is less than mine and your loop conductors have a high Rac, but
I will bet the losses for the damp rich soil in the middle US farmland will
have a much more pronounced effect at close spacing than mine.
Bill A
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