[SixClub] Those that care

Roger (K8RI) 50MHz at rogerhalstead.com
Sun May 17 14:59:04 EDT 2009


Since I finished up the ground system that grounds the coax at the top 
and bottom of the tower as well as where the cables come into the house 
through a grounded bulkhead I've had no problems and that is with a 
tower that has taken at least 15, visually verified, direct hits. I 
rarely ever disconnect any equipment from the AC mains or the antennas.

As to the knots in the power cords, it's adding a bit of inductance. 
Preferably I'd take a few turns through a ferrite core, but we must 
remember why and how equipment is damaged.  It is damaged due to some 
part having a large voltage difference between it and other parts. If we 
let everything rise to the same voltage, or keep everything down (almost 
impossible) there will be no damage.  That voltage may come in on the AC 
line, it may come in on a control cable, a telephone line, or even a 
ground wire. The voltage may even be *induced* into station 
interconnecting cables although "in general" I'd say most damage is done 
from nearby strikes that induce voltage into the power line.

Using a common point ground and a *good* ground system with all cables 
coming into the house bypassed at the entrance is the best insurance.  
This improves the chances that all parts of the equipment will rise to 
the same potential if it goes up rather than having the AC line or 
antenna at a far different voltage.


73

Roger (K8RI)
George Clark wrote:
>   For those that not not know, ( I think those that are Hams do) If you get a lighting to hit your electric pole,can burn your equipment out. If you put a over and under through type hook up, it'll burn to the wiring but not the Equipment out(Choke) and all you'll have to do is replace your electrical hook up to your equipment. It can be loose not tight.
>                                                                          GW ko4qr
>
>
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