Topband: lightning protection on 4 sq

Harold Smith w0rihps at sbcglobal.net
Sun Jun 15 11:35:16 EDT 2008



>I carn't see why not just use 1/4 wave shorted stubs at each vertical
> ??this would blead static es lighten to gnd!es not effect the delay lines!
> also on this is it ok to use a coax impedance other than 50/75 ohms? Can i
> use 92 ohm coax cut to 1/4 wave lines for the shorted stubs.. as i have a
> 500 ft roll of 92 ohm coax can i use this for the shorted stub on each of
> the 4 verticals? on my 4 sq?



Allan:

I don't believe that lightning will even know that a shorted stub is 
connected. The resistance will be a couple of ohms.
One need resistance in the milliohms. A Super Conductor at absolute zero 
would end our problems.

73 Price W0RI 



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