|To:||David Robbins K1TTT <email@example.com>|
|Subject:||Re: [TowerTalk] There's 'ground', and then there's 'ground'|
|From:||Gary Schafer <firstname.lastname@example.org>|
|Date:||Mon, 17 Jan 2005 12:14:05 -0500|
Yes the main reason for keeping them away from the foundation is to keep
them in a more moist ground. The ground tends to be much dryer under the
eves of the house.|
Concrete is not a bad lightning conductor but the foundation wall of a house with a basement will be rather dry.
Lightning is in the range of DC to around 1 mhz so it is not high frequency energy for the bulk of it although some of it does extend higher. Moist ground is a requirement for a good lightning ground.
73 Gary k4FMX
David Robbins K1TTT wrote:
That is a convenient way to say 'keep them away from the foundation'... moisture helps for low frequency and low current grounding where ion conduction is the main conduction method, but does almost nothing for high frequencies or lightning.
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
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