Date: Wed, 28 Oct 2015 13:43:36 -0400
From: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
To: W5GN <w5gn@mxg.com>, towertalk@contesting.com
Subject: Re: [TowerTalk] Strange happening with 10 Meter Beam
Thanks Barry for the suggestions....I took the beam down and replace the
deteriorating cup insulators that seems to have turned into a carbon
resistor. This is what gave me the low VSWR but also acted like a dummy
load, thus low signals but good VSWR. I did not know that the cup
insulators could turn to carbon resistors but apparently they
did.....but the beam was bought in the states near an industrial zone
and I guess anything could happen as it did.
## are you talking about those....black booties that hy gain used on the
inboard ends of the DE ?? How the heck can they turn to charcoal ?
They were pretty thick walled on my old hy gain 204-BA. Guess
folks should stick a DVM from each inboard ele to the boom.Should
read infinite. Can you clean the old ones, or are they completely
trashed ? If that was the case, I can see where a lot of various
yagis are not performing up to snuff.
Jim VE7RF
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