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Re: antenna rig and Lightning





    To John and group,
I have been following the lightning discussion with interest. I would like to know just
how to go about the ground resistance measurements?
                                                                   Thanks,
                                                                    Tom, N9RPQ

Nicolaus Sallay wrote:

> hello,
> It is an iteresting matter wich has been under discussion during the
> last few days about lightning.
> In trying to prevent a similar accident,I've bild a #8 copper wire mesh
> groundet with copper rods in a distance of +- 3x3 feet over a area of
> 15 by 20 feet,that was the area available, and all the towers ad
> suports,etc,plus radios have been conected to this wire net.All cable
> conections to the grounding rods have been soldered.Up today,"it is
> working well" recent mesurements with a professional Ohm bridge,the
> reading was 1.5 ohms.
> regards
> Nicolaus Sallay
> PP8DA
>
> John David Corby wrote:
> >
> > Re
> > > > > I have experienced a lightning strike on my antenna's and in my house, where
> > > > it completely damaged my radio gear
> >
> > Me too. I completely disconnect my antennas from my radios after every
> > session. I still remember the day when I heard a sickening "thwack"
> > sound as my receiver was hit by induced current from a nearby storm
> > being picked up through a rooftop antenna.
> >
> > To prevent static build-up on the antenna I have grounded the metallic
> > antenna mount through thick copper cable leading to a copper stake
> > driven into the ground. I protect power and phone lines with a surge
> > protector power bar and haven't had any more problems.
> >
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