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

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Ed Phillips <evp@xxxxxxxxxxx>

"It is a common complaint that low cavity Q's imply that one of
Tesla's greatest schemes, wireless transmission of power on a global
scale, would be impractical.  In their paper [2] "Concerning Cavity
Q," Corum, Corum, and Spaniol point out that low cavity Q's do not
necessarily limit the practicality of such a system.  Our current
measurements indicate that the cavity Q's are one to two orders of
magnitude higher than previously estimated and therefore would not be
a limitation in any case.  Of course, further measurements must be
made to confirm and refine our results, but it seems clear that the
development of practical wireless power transmission on a global
scale as envisioned by Tesla and nearly brought into being at
Wardenclyffe will not be inhibited by the Q values of the
earth-ionosphere cavity resonances. . . ."  [Sutton, John F. and
Craig Spaniol, "A Measurement of the Magnetic Earth-Ionosphere Cavity
Resonances in the 3-30 Hz. Range," Proceedings of the 1988
International Tesla Symposium, Int'l Tesla Society, 1990, pp.
3-17-3-23]"

	Let us suppose that these measurements are valid.  [Remember that
Tesla's scheme of transmitting via "the conducting layer" required much
higher values to minimize losses.]  Using the technology of those days
(or 2005 for that matter) how was he going to sense the variation in
resonant frequency and adjust the tuning of his transmitter
accordingly?  More importantly, how was the individual receiver to sense
the frequency and tune itself?  Why is NONE of this mentioned in his
many writings and patents?

Ed