Re: Tesla Coil RF Transmitter

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Gary Peterson" <gary@xxxxxxxxxxxx>


> Original poster: Ed Phillips <evp@xxxxxxxxxxx>

> > Original poster: "Gary Peterson" <gary@xxxxxxxxxxxx>

> > Of course, the current flowing through the loss resistance of an 
> > inefficient "antenna" is, to a Tesla-coil transmitter, the current 
> > [energy] that is not radiated but trapped within the entire 
> > resonating system, including the earth and the distant receiving transformer.

> ONLY if the "transmitter" is coupled to "the distant receiving 
> transformer, which it isn't.

According to theory, the transmitter IS coupled to the distant 
receiving transformer.  The propagation of electrical energy between 
a Tesla-coil transmitter and a Tesla receiving transformer is by 
electrical conduction between the ground terminals, and direct and 
indirect electrostatic induction between their respective elevated 
terminals.  For an ultra-high-power type-one system the coupling 
between the two elevated terminals is by electrical conduction through plasma.

> . . . The current just flows to the ground within the immediate 
> vicinity of the transmitter, "longitudinal waves"
> etc. notwithstanding.

In operation the elevated terminal of a Tesla-coil transmitter 
functions as one plate of a capacitor.  In opposition to this 
terminal is every other electrically conducting body to which it is 
electrically connected, including the earth and the receiver's 
elevated terminal.  The transmitter's elevated terminal serves two 
purposes.  First, it acts as a charge reservoir in opposition to the 
earth's surface in the immediate vicinity of the 
transmitter.  Second, it is one of two capacitor plates, the other 
plate being the elevated terminal of the receiving facility.  In an 
ultra-high-power Tesla-coil RF transmission-reception system these 
two capacitor plates act as high voltage discharge terminals for the 
formation of capacitively coupled discharge plasma with 
interconnection taking place through the upper level atmosphere.

> Nothing flows in the distant receiving transformer.

Even if the transfer of energy is due 100% to "radio waves," which it 
isn't, current flows in the receiving transformer.

> Ed

Gary