ersmar at comcast.net
Sat Nov 5 01:52:47 EST 2005
I have one of these baluns in the workshop. Used to use it to feed a 30M inverted V, but took it down a few years ago.
The lightning arrestor/suppressor is nothing more than a thin piece of aluminum strap that connects the eye-bolt at the top of the PVC shell of the balun (a support rope threads through this eye-bolt) to a ground screw on the SO-239 at the bottom. Basically a lightning strike will be conducted from the eye-bolt safely to ground through the coax shield, rather than hitting the dipole feedpoint just beneath the eye-bolt. Or so the theory goes.
Gene Smar AD3F
> Anyone familiar with and have experience with the W2DU baluns sold by UNadilla?
> Specifically the ones with the built in lightning arrestor? Will this short with
> a strike or
> is this not a problem? I was told it is actually not an arrestor rather it is a
> suppressor -
> bleeding off the charge... it will be at 140' and I do not climb so I need
> something there
> that should be reliable... comments? [not interested in a coax loop - thinking
> this balun
> for now]
> See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
> Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
> and ask for Sherman, W2FLA.
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