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Re: [TowerTalk] Fire hazard with inverted L ??

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Fire hazard with inverted L ??
From: Lee Bahr <L@w0vt.us>
Date: Mon, 4 Sep 2017 16:19:16 -0500
List-post: <mailto:towertalk@contesting.com>

I don't know what power level you are thinking of running but I have seen a couple fires from full limit power.  The last was at W5MP. He was using his L-4B amplifier feeding commercial Ladder Line.  He had just put up a new antenna and draped the ladder line horizontal over some shrubs temporarily while checking it out.  He intended to put the ladder line on standoffs after the test.  What happened next was he started the shrubs on fire.  It almost caught hold on his house.  Commercial Ladder line DOES have insulation over the two parallel lines.  I'm sure you would have no problem running 100 watts or less, but with an amp, I would make sure the antenna does not touch tree limbs.  I've also seen where an antenna burned a 1/4 inch deep trench into an oak tree.  That ham was running 500 watts of AM.
Lee, w0vt

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