Re: Goubou line, "G-line" (was Tesla Coil RF Transmitter)

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: robert heidlebaugh <rheidlebaugh@xxxxxxxxxxxxxx>

Ground wave transmission, Tx =  2 stakes in the ground 1/4 wave spaces in
line with the Rx,  Rx =  two stakes in the ground at right angles to the
Tx-Tx line spaced in 1/4 wave length multaples. Transmit and recieve a
signal and test for airborn signals and find none. This method of
transmission works and is reproducable. The only way it can work is by
producing a standing wave energy in the ground just like a transmitted wave
in space from an antenna. It is reproduceable , testable, and can be
duplicated so it is scientific fact not dream theory. A signal can be
transmitted through the earth just as easy as through space and can be
transmitted through water also. Earth is a conductor but it is not a silver
bar with no resistance so power fields can be developed within the
resisrance mass of earth just like air. If you dought it test it for your
self. I have under military supervision and documentation.
     Robert   H
--


> From: "Tesla list" <tesla@xxxxxxxxxx>
> Date: Tue, 13 Sep 2005 22:30:27 -0600
> To: tesla@xxxxxxxxxx
> Subject: Goubou line, "G-line"  (was Tesla Coil RF Transmitter)
> Resent-From: tesla@xxxxxxxxxx
> Resent-Date: Tue, 13 Sep 2005 22:32:07 -0600 (MDT)
>
> Original poster: William Beaty <billb@xxxxxxxxxx>
>
> On Sun, 11 Sep 2005, Tesla list wrote:
>
>> Original poster: Ed Phillips <evp@xxxxxxxxxxx>
>>
>> 3 -- given the above statements, why is it so hard for anyone to
>> believe that Tesla was transmitting by conduction through the earth,
>> and not propagation through the air?! Just becuase you CAN transmit
>> RF through the air, doesn't mean it is the ONLY way to do it."
>
> This isn't quite correct.  RF energy cannot flow through conductors.
> After all, whenever we send electrical energy down a piece of coax or a
> length of lampcord, both the coax and the lampcord function as waveguides,
> and the electromagnetic energy is flowing through the space outside the
> metal and not flowing inside the conductors.  The current is in the metal,
> yet the flowing energy is in the space nearby.
>
> If Tesla successfully used the Earth to transmit VLF energy from place to
> place, the energy had to have flowed through the air, not through the
> Earth.  Yes, the EM energy was associated with electric currents in the
> Earth's surface.  And the EM energy would be constrained to follow the
> Earth's surface.  But electrical energy doesn't move through conductors.
> Look at microwave waveguides (the hollow rectangular type), where the
> currents are in the metal surface, while the RF energy is in the hollow
> center of the pipe.  Coax and twinlead are similar, and they still behave
> as waveguides regardlesss of frequency.
>
> Or in other words, *ALL* electrical energy is the same thing as "radio
> waves."  Electrical technology is all based on propagating EM fields
> guided by electric circuits.  The only difference is in our minds:  when
> electromagnetism is guided by some wires, we concentrate on the currents
> in the wires, ignore the surrounding field, and we call it "electrical
> energy." But when it flys off an antenna and crosses empty space, we call
> it "radio waves."  Yet the energy is made of space-filling EM fields in
> either case.  Similarly, the only difference between a power supply and a
> radio transmitter is...  the radio transmitter is connected to an antenna.
> So Tesla's system was using the Earth as a waveguide in somewhat the same
> way that the electric utility companies use copper wire as waveguides.
>
>
> Here's where it gets weird.  Perhaps Tesla's system did not actually take
> advantage of the Ionosphere at all.  After all, in the microwave waveguide
> system called the "Goubou Line" or "G-line," there is an electric current
> in a single conductor, and the EM waves are guided by that conductor.  A
> "G-line" system is fed by conventional coax cable, but then the coax
> shield is flared out into a horn shape called the Launcher, and the center
> conductor continues on alone.  At the far end is another "horn," the
> Catcher, which leads to the shield of normal coax.  In between the horns
> the single wire has no return path, just as there is no return path in
> optical fibers or in rectangular microwave waveguides.  Or, from an
> e-field standpoint, the single wire functions as it's own return path,
> since the fast-moving regions of positive and negative charge on the long
> "G-line" wire are connected together by electric field lines.
>
> An analogy:  if electric circuits are like drive belts wrapped around
> pulleys, then Tesla's system was sending sound waves along a single length
> of stretched rope.  When frequency is high, no closed circuit or return
> rope is neeed.
>
> If Tesla's system is similar to microwave G-line, then the Earth's
> ionosphere plays a less significant role, since the single conductor
> itself is the only necessary part.  But in that case, the "launching horn"
> is the important part.  The smaller the horn, the worse the impedance
> match, and the harder it becomes to send electrical energy along the
> single wire.
>
>
> Hmmm, I wonder what happens if we actually try sending signals along a
> couple hundred feel of coax cable, but we strip off the shield braid in a
> fifty-foot length in the middle of the cable?  Well, I guess it would only
> be a fair test if we used 100MHz signals or higher, so 50ft is many
> wavelengths long.  Also use ungrounded signal generator and detector, so
> there's no earth-return path.  Could we light a light bulb over such a
> transmission line?  (Of course put a tank circuit on the light bulb to
> take advantage of resonant matching effects.)
>
>
>
> (((((((((((((((((( ( (  (   (    (O)    )   )  ) ) )))))))))))))))))))
> William J. Beaty                            SCIENCE HOBBYIST website
> billb at amasci com                         http://amasci.com
> EE/programmer/sci-exhibits   amateur science, hobby projects, sci fair
> Seattle, WA  206-789-0775    unusual phenomena, tesla coils, weird sci
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>