[NetBehaviour] Telluro-geo-psycho-modulator workshop and field trip, Furtherfield, London, May 2-3rd

[John Hopkins]

On 08/Apr/15 11:18, jk wrote:
> Telluro-geo-psycho-modulator workshop and field trip

actually magnetotelluric fields are not really all that weak ... but you really 
need to consider your antenna size -- wide spacing of individual receivers that 
can be networked with contemporary devices -- as a single antenna can provide 
quite powerful signal resolution. (This combined with long-period recording -- 
into days.) Consider spacings upward of tens of km (total antenna area upwards 
of km2) to allow 'deep soundings'.

Anoher technique is to ground a square-wave DC current (as high an amperage as 
you can risk!) directly into the ground in two small pits that have a salt 
slurry in them -- spaced about 100-500 meters apart -- this causes a 
locally-induced Time-Domain field source that can be played with in the 
deconvolution process...

Good luck!

JH

-- 
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Dr. John Hopkins, BSc, MFA, PhD
grounded on a granite batholith
twitter: @neoscenes
http://tech-no-mad.net/blog/
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