OT: Open wire feeder cautions

[Ken G Kopp]

I pass my ladder line through the shack wall with two large cone
insulators that use 1/4" brass rods about 12" total length passing
through the wall.

At one point I saw erratic SWR readings on the tuner's SWR
meter.  Several days of chasing the problem determined that
one or both of the rods was arcing to the tinfoil backing on the
insulation inside the wall.

Enlarging the through-the-wall holes and inserting small-diameter
CPVC pipe over the rods fixed the problem.  The pipes extend a
bit beyond the wall on both sides and into the inside of the ceramic
cones.

Rose has a scar on her arm from when she was painting an outside
wall years ago while I was on the air with a KW. (:-((

73!

Ken Kopp - K0PP
--------------------------------------------------------------------------------------------

---------- Forwarded message ----------
From: N5GE <[hidden email]>
Date: Thu, Nov 15, 2012 at 8:00 PM
Subject: Re: [Elecraft] More KAT500
To: "hawley, charles j jr" <[hidden email]>
Cc: "[hidden email]" <[hidden email]>

I hope you have the ladder-line supported by fire-proof (ceramic)
insulators in the attic.

Letting ladder-line touch anything combustible can start a fire.

Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member
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[David Dietrich]

Ken,

Very good insight...Thanks for sharing!

>> "Rose has a scar on her arm from when she was painting an outside wall years ago while I was on the air with a KW."

AND YOU ARE STILL ALIVE, MARRIED, AND STILL HAVE A HAM STATION AFTER THAT?!?!?!?!?!  If that happened to my wife, Trina, she would divorce, kill, and/or emasculate me, AND smash all of my equipment!

73,

David
KC9EHQ
K1-4 sn 2051
K2/10 sn 7164
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[ke9uw]

Mine pass thru the wall on ceramic insulators as well. They are insulated from the siding etc.

Sent from my iPad
Chuck, KE9UW
(Jack for BMW motorcycles)

On Nov 15, 2012, at 2:24 PM, "Ken G Kopp" <[hidden email]> wrote:

> I pass my ladder line through the shack wall with two large cone
> insulators that use 1/4" brass rods about 12" total length passing
> through the wall.
>
> At one point I saw erratic SWR readings on the tuner's SWR
> meter.  Several days of chasing the problem determined that
> one or both of the rods was arcing to the tinfoil backing on the
> insulation inside the wall.
>
> Enlarging the through-the-wall holes and inserting small-diameter
> CPVC pipe over the rods fixed the problem.  The pipes extend a
> bit beyond the wall on both sides and into the inside of the ceramic
> cones.
>
> Rose has a scar on her arm from when she was painting an outside
> wall years ago while I was on the air with a KW. (:-((
>
> 73!
>
> Ken Kopp - K0PP
> --------------------------------------------------------------------------------------------
>
> ---------- Forwarded message ----------
> From: N5GE <[hidden email]>
> Date: Thu, Nov 15, 2012 at 8:00 PM
> Subject: Re: [Elecraft] More KAT500
> To: "hawley, charles j jr" <[hidden email]>
> Cc: "[hidden email]" <[hidden email]>
>
> I hope you have the ladder-line supported by fire-proof (ceramic)
> insulators in the attic.
>
> Letting ladder-line touch anything combustible can start a fire.
>
> Amateur Radio Operator N5GE
> ARRL Lifetime Member
> QCWA Lifetime Member
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

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[Cady, Fred]

Rose is an absolute gem!

-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of David Dietrich
Sent: Thursday, November 15, 2012 2:01 PM
To: Ken G Kopp; [hidden email]
Subject: Re: [Elecraft] OT: Open wire feeder cautions

Ken,

Very good insight...Thanks for sharing!

>> "Rose has a scar on her arm from when she was painting an outside wall years ago while I was on the air with a KW."

AND YOU ARE STILL ALIVE, MARRIED, AND STILL HAVE A HAM STATION AFTER THAT?!?!?!?!?!  If that happened to my wife, Trina, she would divorce, kill, and/or emasculate me, AND smash all of my equipment!

73,

David
KC9EHQ
K1-4 sn 2051
K2/10 sn 7164
______________________________________________________________
Elecraft mailing list
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