Hi, Rik!
On Tue, 14 May 2002, Rik Strobbe wrote:
I believe the limitations of the formula probably are :
1.The ratio Lant/Lcp should not be too big or small. Increasing Lcp far
beyond Lant won't be a great help. On the other hand, even with Lcp = 0 (no
cointerpoise wire) the loss resistance will not be endless
If Lcp=0 this means that ground wire only touch to the ground in infinity
small point. So R should be infinity large. If there is no conterpoint
Lcp is a ground rod length.
2. S (ground conductivity) should not be too large or too small. If S is
too large (eg. salt water) the counterpoise won't be of much use. On the
other side even for s = 0 (worst soil you can think of) R won't be endless
as the counterpoise will still work.
Certenly, this is a real problem...
One more quation, Rik. Do You get formula I sent to Group for rectangular
loop inductance? I am not sure You get it...
73 de RA9MB/Alex
http://www.qsl.net/ra9mb
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