On Sun, 5 Sep 2004 03:04:23 +0000 (UTC), "Reg Edwards"
wrote:

when soil impedance is
of the order of 377 ohms.

Hi Reggie,

Is THIS the soil in your garden? Must be miserable for DX! That
would be an exceedingly deep pile of very dry sand you are on. Quite
remarkable stuff where ever you might find it. Like the green cheese
the moon was supposedly made of, you have more lore from the aged
domestic goddess file than one could have imagined.

What coefficients would that be for your program? What would the
conductance be? How many radials would it resolve to? Can you even
guess the Q? So many questions and easily suitable for the Magic
8-ball "Try again later."

73's
Richard Clark, KB7QHC

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"Reg Edwards"
Maximum ground loss during wave reflection, ...
... could very well be when soil impedance is
of the order of 377 ohms. ...
...impedance match with free space at 377 ohms....

He he he.

What if your garden is in the 'near field' ? (Obviously no "what if" at
all - it almost certainly is.) Then the garden should be some other value,
NOT 377 ohms, to match your locally generated EM wave.

Also, the ground properties would obviously be NON RECIPROCAL (!!!) since
the other guy's signal would presumably be in the far field and would arrive
in the V/I ratio of 377 ohms.




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