[TowerTalk] ground strap width: 3" vs 6"...

Jim Brown jim at audiosystemsgroup.com
Wed Aug 18 15:02:02 EDT 2004


On Wed, 18 Aug 2004 12:42:13 -0500, Keith Dutson wrote:

>What importance does inductance have in grounding a roof mounted antenna?  I
>would think impedance is the prime concern.

At the frequencies involved in lightning (IEEE says the energy in lightning is broadly 
centered around 1 MHz), the impedance of the earth connection is, for all practical 
purposes, entirely dominated by inductive reactance. 

Jim Brown  K9YC




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