LF: RE: earth antenna

[Mike-WE0H <we0h@gmx.com>]

In the USA we call that a SWAG (Scientific Wild Ass Guess)

Mike-WE0H




Rik S wrote:
> Stefan,
>  
> based on the theory that an earth antenna is a loop  and assuming that 
> the "height" of the loop remains unchanged, increasing the length from 
> 280m to 600m should increase the loop area (A) by 2.14 .
> As the radiation resistance of a loop is proportional the A^2 the 
> radiation resistance should increase by 4.6.
> If the loss resistance remains unchanged the improvement should 
> be almost 7dB.
>  
> But notice the use of assuming, should and if ... so just a guess.
>  
> 73, Rik  ON7YD