Editing Ground constants

In [[telecommunications]], '''ground constants''' are the electrical parameters of [[soil|earth]]: [[electrical conductivity]], σ, [[electrical permittivity]], ε, and [[magnetic permeability]], μ.

The values of these parameters vary with the local chemical composition and density of the Earth. For a propagating [[electromagnetic wave]], such as a [[surface wave]] propagating along the surface of the Earth, these parameters vary with [[frequency]] and direction. 

==See also==
*[[Ground (electricity)|Ground]]

==References==
*{{FS1037C MS188}}

[[Category:Telecommunications engineering]]


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