Of course most of us do have 'spark gap' protection at the tower and shack
end automatically. Just look at all the short gap paths on so-239's that
are typically used on baluns and switchboxes, in most cases you are looking
at 1/4" or less from the center conductor to the case. That pretty much
limits the voltage difference at the ends to a couple thousand volts anyway.
David Robbins K1TTT
e-mail: mailto:k1ttt@arrl.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
> -----Original Message-----
> From: Rik van Riel [mailto:riel@surriel.com]
> Sent: Sunday, September 12, 2010 15:52
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Lightning Protection Question
>
> On 09/11/2010 01:19 PM, EZ Rhino wrote:
> > What if you have arrestors at the tower AND the SPG at the shack?
>
> Nothing wrong with having cheap "spark gap" connectors at
> the tower. Worst case they don't do nothing, best case
> they short some of the largest lightning induced pulses
> out before they reach your (more expensive) arrestor at
> the shack.
>
> --
> All rights reversed.
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