Ground conductivity refers to the electrical conductivity of the subsurface of the earth.
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Radio propagation
Ground conductivity is an extremely important factor in determining the field strength and propagation of surface wave (ground wave) radio transmissions. Low frequency (30-300 kHz) and medium frequency (300-3000 kHz) radio transmissions are particularly reliant on good ground conductivity as their primary propagation is by surface wave.
Other uses
Ground conductivity is sometimes used in determining the efficiency of a septic tank, using electromagnetic induction, so that contaminants do not reach the surface or nearby water supplies. [1]
References
- ^ Taylor, Rick; Lee, Doolittle (June 2003). "Ground conductivity survey of a septic system during and after failure". http://link.aip.org/link/?LEEDFF/22/555/1. Retrieved on 2008-02-10.
External links
- Ground conductivity maps in the United States (provided by the Federal Communications Commission and includes large scale map)
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