Re: Tesla Coil RF Transmitter

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Antonio Carlos M. de Queiroz" <acmdq@xxxxxxxxxx>

Tesla list wrote:

> Original poster: "Gary Peterson" <gary@xxxxxxxxxxxx>
>
> > Original poster: stork <stork@xxxxxxxxxxxxxxxxxxx>
> >
> > Does the current in the earth from the ground connection move as a 
> > conduction current . . . ?
>
> Yes, true conduction current flows outward through the earth from a 
> Tesla coil transmitter's ground terminal.  Assuming a uniform 
> texture and composition of the surrounding terrain, this current 
> diminishes in strength equally in all horizontal directions as the 
> distance from the terminal increases.  This situation changes if an 
> identically tuned Tesla receiving transformer is brought into 
> operation at another location.  In this case there is an increase in 
> the current that flows from the transmitter's ground terminal and a 
> conduction current passes through Earth in direction of the 
> receiver's ground terminal.

This looks quite excessive. There is no way where the transmitter can
be aware of the existence of the receiver, if it is out of its local
field. The receiver receives signal significant time after it was
transmitted, and can't inform the transmitter to redirect its ground
current on its direction. The power transmitted by radio stations
does not depend on the number of receivers receiving the station...
The energy that is not recovered by the receivers, taken only from
the electromagnetic waves at their immediate vicinity (their local
field area), is lost.

Antonio Carlos M. de Queiroz