[Antennas] Old Coax

Fri, 13 Sep 2002 15:01:24 -0400

I once heard a UK ham refer to the coax braid as a 'wick' - how
appropriate...
 ._._.
----- Original Message -----
From: "Tom Horton" <[email protected]>
To: "Sean P Doran" <[email protected]>; <[email protected]>
Cc: <[email protected]>
Sent: Friday, September 13, 2002 12:44 AM
Subject: Re: [Antennas] Old Coax


> I've got some in use that I know is well over 20 years old,
> And it is still just fine. I us eit daily running QRP
> and it works quite well.
> On the other hand, I have had some that got so full of water
> that the water actually migrated all the way into the shack
> and leaked into a PL-259 on teh antenna switch.ON THE SECOND FLOOR!!!!!
> Ya jest never kno!
> 73, tom k5iid
>
>
>
>
>
> At 16:25 09/12/02 -0400, Sean P Doran wrote:
> >Coax does not last forever!   Trust me.    It's made from materials that
> >degrade with exposure to temperature and sunlight, etc.  There is no way
> >it lasts forever.  If you get ten years out of coax, that's rather good.
> >
> >
> >WD8OKN - Michigan
> >
> >
> >On Thu, 12 Sep 2002 08:37:09 -0500 Tom <[email protected]> writes:
> > > Coax never needs replacing unless there is a specific reason.  Just
> > > like
> > > any electrical wire product, it should last at least your lifetime.
> > >
> > > BUT... moisture, UV, wind, mechanical and other physical contact can
> > >
> > > compromise the structure or connection points and cause premature
> > > failure.  Just like anything else.
> > >
> > > I think if you build your connections right in the first place, keep
> > > your
> > > coax connections sealed and dont let it flap in the wind or contact
> > >
> > > anything that is going to cause wear, your coax should last longer
> > > than you.
> > >
> > > Otherwise, you can replace it periodically, whatever that means.
> > >
> > > Tom F
> > > KD5TIE
> > >
> > > At 08:12 AM 9/12/2002, Lefczik, Larry D said something like:
> > > >I've seen several times that coax cable should be replaced after a
> > > few
> > > >years.  Why is this?  Is it just because of UV exposure to the
> > > outer jacket?
> > > >If so, is coax which is still on a spool good forever?  Is coax
> > > used indoors
> > > >subject to aging?  What about MIL-STD coax, is that less
> > > susceptible to
> > > >aging?
> > > >
> > > >A lot of questions, but the main question is, why is it recommended
> > > to
> > > >replace coax periodically?
> > > >
> > > >Thanks de WA2EHZ
> > > >
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> Tom Horton
> K5IID in West "BY GAWD" Virginia
> " E " sorter for the W5 Bureau
>
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