The major problem with most of you is that you looking at known traditional solutions for given problems.
Schumann waveguide should not be seen as Schumann resonances per say .
Schumann Resonance only allows you to send signal from point A to point B without significant losses.
That includes Ground Wave, Surface Wave, and traditional electromagnetic communication.
The guided wave travels along curvature of the earth.
And that is about all in this area.
Corum Bross included that information in their patents.
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The novelty is extraction energy from that Schumann Waveguide.
So in the big picture there are two alternatives:
1- Tariel knows about Surface Wave but he had no idea that he deals with Surface Wave.
Theoretically to make Tx and Rx for such assembly is about 1 to 3 days.
And for these who did it before 1 to 3 hours.( with help of two, three people in physical assembly)
1a- testing and tuning takes few hours to few days but less than 3 days for starters.
1b- There is indication that in the island presentation light in the motel dimmed significantly.
Tariel was across the water on the island. Part of his crew was in the motel.
That fact was absolutely proven by my very credible sources.
However we may say that it was purely coincidental.
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2- Tariel knowing technique of Zenneck transmission went further up and extracted energy from Schumann Waveguide
That is in theory even simpler than transmission of Zenneck Wave as you do not need transmitter.
Each lightning strike creates avalanche of lightning strikes around the earth.
High quality lightning data has only recently become available, but the data indicates that lightning occurs on average 44 times every second over the entire Earth, making a total of about 1.4 billion flashes per year.
All of them must dissipate in the earth.
And I stop here.Think about Standing Wave deformation at your higher Schumann Resonance frequency
And you'll get your FE.
So in second option Tariel received in his device surface wave energy from Schumann Waveguide.
I surprised myself that I went that far with my comment.
Wesley