LF: Re: Ground loss for different length

["Alexander S. Yurkov" <fitec@omskcity.com>]

Hi Group.
I sould someone to add.

On Sat, 25 May 2002, Alexander S. Yurkov wrote:

> only for elevated conterpoise. The formula is:
>
>
> R=(1/(pi*s) * [(1/la)*ln( (H+h)/(2*H) ) + (1/lc)*ln( (H+h)/(2*h) )]
>
> where
> la - antenna length,
> lc - conterpoise length.
> Other notations are the same then previously.
>
> If lc=la then the formula obviously became the same then previous one.
If lc >> la the formula is not right. Charge distributing seems to be not
homogenious. Sorry, I have not notice some problems at first.
But if lc ~< la may be OK. It's should be tested and may be the formula
should be modified. PSE do not use it now. Sorry again.


73 de RA9MB/Alex
http://www.qsl.net/ra9mb