[TowerTalk] Vertical antennas and lightning

[K1TTT]

Correct... you can't avoid a strike, you can only deal with the consequences
as best you can.  


David Robbins K1TTT
e-mail: mailto:k1ttt at arrl.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
 

> -----Original Message-----
> From: David Gilbert [mailto:xdavid at cis-broadband.com]
> Sent: Sunday, August 01, 2010 20:14
> To: towertalk at contesting.com
> Subject: Re: [TowerTalk] Vertical antennas and lightning
> 
> 
> 
> I'm no expert, but I think that's missing the point.  As I understand
> it, the purpose of using lightning protectors and grounding everything
> to common points, etc is to keep everything at a common potential to
> avoid damage from a strike.  I don't think there is anything in the
> world you can do to prevent a strike, but leaving everything ungrounded
> is almost a guarantee that a strike will cause damage.
> 
> Dave   AB7E
> 
> 
> 
> On 8/1/2010 1:02 PM, Tommy Alderman wrote:
> > This then, means that ICE lightning protectors, with their center
> conductor
> > at DC ground, are really not good protectors to use? Doesn't it also
> bring
> > in to question the advice to connect coax shields to both the top and
> bottom
> > of a tower?
> >
> > To me, what Dave says, answers the age old question about antennas of
> any
> > kind: 'To ground or not to ground?".
> >
> > Tom - W4BQF
> >
> >
> > Subject: Re: [TowerTalk] Vertical antennas and lightning
> >
> > Unfortunately in this case the 'bleeding' when there is a charged cloud
> over
> > head is putting charge ONTO the antenna from the ground to equalize it
> with
> > the rest of the charge being attracted to the base of the cloud.  So it
> make
> > it MORE likely to start the upward streamer that completes the path.
> >
> >
> > David Robbins K1TTT
> > e-mail: mailto:k1ttt at arrl.net
> > web: http://www.k1ttt.net
> > AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
> >
> >
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