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Re: 135 foot streamers

There are literally an infinite number of harmonics of any arbitrary
frequency, and if the fundamental is as low as 8 Hz, they're pretty close
together (i.e. 8 Hz).  In fact, given the usual Q of a tesla coil (in the
10-50 range, not breaking out), if your coil runs at the 12,500th harmonic
of 8 Hz (i.e. 100 kHz), the nominal bandwidth of the coil is 2-10 kHz,
covering several hundred different harmonics.

If you want to send power around the world, there are a lot of other
factors you need to consider, primarily absorbtion in the "waveguide
walls".  If you take a look at the "Omega Navigation System", you'll find
out a whole bunch about round the world single mode propagation. Omega uses
(used?) frequencies around 10 kHz.

Those interested in VLF propagation can contact me off list and I can give
you some references to go find out more..
mailto:jimlux-at-earthlink-dot-net?Subject=VLF propagation
> From: Tesla list <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Re: 135 foot streamers
> Date: Monday, October 09, 2000 5:39 PM
> Original poster: Hollmike-at-aol-dot-com 
> In a message dated 10/9/2000 3:27:59 PM Mountain Standard Time, 
> tesla-at-pupman-dot-com writes:
> > Has anyone consider the
> >  earth resonance frequencies in their own experiments. (8,14 and 20
> >  
> I was planning to use a high harmonic of them on my next coil.  In fact,
> have a spreadsheet where I determined various frequencies that were odd 
> harmonics of most of the Schumann resonance frequencies(there are more
> you listed).   It turns out that there are quite a few frequencies that
> common to most of the Schumann resonance frequencies and are within the 
> normal range of TC frequencies.   It made me wonder if Tesla hit on one
> these and figured it to be good for his transmission of power scheme.  
> the other hand, how'd you like to see a TC large enough to resonate at 8
> Mike