Fractional wave tuned antenna/inductor (1 Viewer)

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Hello,

I have posted a while ago wondering how to make a coil that was tuned to earth resonance (~7.8 Hz). I realize that the wavelength at that frequency range is ridiculously low and would require an antenna the size of Texas to couple too normally. But I heard something about fractional wave antennas and was wondering if something like that would work. I basically want to tune into that frequency range to run a small oscillator circuit. But I am wondering if there is anyway to input the signal into the tank circuit without using a huge antenna.

Thanks,
Jason O
 

berkeman

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What is the energy exactly that you are trying to couple to? I don't mean some pseudo-science energy field. I mean, where is the energy coming from, and what form is it in?
 

berkeman

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This is pretty cool. I ran 500 turns of Cat5 around a 55 gallon drum and started picking up some Martian transmissions. Dang, what is their don de translation...
 

berkeman

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Are they using 32-bit encryption or 64? Anybody know for sure?
 
557
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berkeman said:
What is the energy exactly that you are trying to couple to? I don't mean some pseudo-science energy field. I mean, where is the energy coming from, and what form is it in?
No, the signal source I want to tune into is 100% natural, no psudo-science necessary. Here is a link with information about this natural frequency range. It's called the Schumann Resonance.

http://www.iihr.uiowa.edu/projects/schumann/Index.html [Broken]

Thank you,
Jason O
 
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berkeman

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Jdo300 said:
No, the signal source I want to tune into is 100% natural, no psudo-science necessary. Here is a link with information about this natural frequency range. It's called the Schumann Resonance.

http://www.iihr.uiowa.edu/projects/schumann/Index.html [Broken]

Thank you,
Jason O
Hmmm. Looks like a reputable source, and the two-conductor thing sounds reasonable. How about just using the meter-size antennas that the author describes? The article mentions several other ULF antennas -- how big are they, and how are they constructed?

I googled Schumann Resonance and got lots of hits. Kind of interesting. I totally don't get the spoiler warning thing at Wikipedia's page for Schumann Resonance -- what the heck is "Serial Experiments Lain"? I followed the link, but that made even less sense to me :confused:

http://en.wikipedia.org/wiki/Schumann_resonance
 
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NoTime

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berkeman said:
what the heck is "Serial Experiments Lain"?
Looks like a Japnese SciFi cyberpunk cartoon/game.
 

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