[Waverley ARS] Amateur radio antenna close to TV antenna
Mathias Burbach
Mathias.Burbach at Bigfoot.com
Thu Jun 1 01:18:04 CEST 2006
Hello Brad,
Thanks for your reply.
Brad wrote:
> Are TV antenna masts usually earthed? The few that I have seen have
> not been earthed.
I would say so. At least in Germany it is mandatory and your building
fire damage insurance won't pay for any fire after a lightening if it
turns out that the antenna was not earthed.
> I suspect that providing a nice earth path to ground is only asking
> for lighting to strike? Should lightning strike in close proximity, I
> doubt that the earth wire would be able to provide totally protect
> delicate electronic equipment? And these may be destroyed in any
> case. In case of a direct lightning strike I think that the presence
> of an earth wire would be of little benefit.
I have seen big earth wires and a long metal stick (called electrode
?!?) in the ground at Herby's place (VK2NHB). Is he just over-cautious?
> I would like to find a way of having something automatically sense the
> presence of an electrical storm and trip an antenna relay switching
> the antenna to earth rather than to the transceiver when my remote
> station is setup. Does everyone disconnect their transceivers when a
> lightning storm passes through their QTH?
>
> Mathias you have started an interesting topic.
Yeah, please let's have some more comments from the club community.
Salut,
Mathias
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