[Lowfer] Free Energy/QST October 1999

[W2MXW]

The formula which gives the distance at which transition from near 
(induction) to far (radiation) field occurs is:

lambda / 2 pi meters

where,
lambda is the wavelength in meters

Jon W2MXW


At 09:29 PM 3/9/02 -0600, you wrote:
> > I wonder where the line is drawn?  Sure, if a competing AM radio
>station put
> > up some antenna which rendered another station inoperable but did
>nothing
> > else, it would seem illegal.
>
>There are accepted formulae which determine the near field transition to
>far field.
>