[TowerTalk] Antenna to Shack Ground Connection

[Patrick Greenlee]

Jim, Thanks for the info.  Too bad there is so much bad info being 
circulated until it takes on a residual life of its own. Not a good 
situation.

Patrick   NJ5G

On 1/29/2015 8:43 AM, Jim Lux wrote:
> On 1/29/15 6:20 AM, Patrick Greenlee wrote:
>> Tendencies, not absolutes.
>
>   It would be foolish to assume a charge
>> dissipating system would work 100% of the time.
>
>
> Not even part of the time.. Thoroughly debunked through analysis, 
> modeling, and test.
>
> Abdul M. Mousa, “The Applicability of Lightning Elimination Devices to 
> Substations and Power Lines,” IEEE Transactions on Power Delivery, 
> Vol. 13, No. 4, Oct. 1998m pp. 1120-1127.
>
> Paper was peer-reviewed by six reviewers under threat of lawsuits. 
> Paper states that these devices do not work as the manufacturers claim.
>
> google for "mousa lightning elimination" (there's lots of copies out 
> there)
>
> more references at
> http://home.earthlink.net/~w6rmk/lightning.htm
>
>
>  Grounding runs for
>> lightning rods are of considerable size and are careful to bend gently
>> to avoid lumps of inductance.
>
>
> Gentle bends (or even sharp ones) do not change the inductance, as 
> long as it's not a complete turn.  What bends do is create corners 
> with small radius of curvature, which in turn leads to increase chance 
> of an arc jumping from conductor to something else.
>
>
>
>
> Otherwise they would be destroyed the
>> first time they failed to defuse a strike.  Ask yourself what the sharp
>> thingies are on those commercial towers for.  Do you suppose they might
>> reduce the number and severity of strikes or are they just pretty
>> decorations for birds and tower climbers to appreciate?
>
> People buy stuff that doesn't work for all kinds of reasons.
> Maybe the owner's nephew works for lightningeliminators.com.
> Maybe the owner was misled by the snake oil vendor: "Our lightning 
> eliminator was installed by NASA..." leaving out the "...for an 
> objective test and it failed miserably"
>
>
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