Like I said in my post I've been using regular LMR 400 for years on many
antennas. Never had a failure if you leave a good sized loop.
Bill K4XS
In a message dated 3/27/2013 2:37:48 A.M. Coordinated Universal Time,
gary_mayfield@hotmail.com writes:
What are you supposed to put around the rotor then?
73,
Joe kk0sd
> From: Cqtestk4xs@aol.com
> Date: Tue, 26 Mar 2013 11:42:22 -0400
> To: TOWERTALK@contesting.com
> Subject: Re: [TowerTalk] LMR degradation
>
> Back in the early 2000s I had a long conversation with the guys at
Times.
> The ultra flex on many of my jumpers had cracked after only a couple of
> years in the FL sun. His response was the ultraflex was not supposed to
be
> used outside.
>
> He offered to replace the stuff with regular 400 but I never took him up
> on it.
>
> I use the regular LMR 400 on all my jumpers and have had zero problems.
>
> Bill K4XS
>
>
> In a message dated 3/26/2013 1:25:47 P.M. Coordinated Universal Time,
> k8ri@rogerhalstead.com writes:
>
> On 3/25/2013 2:31 AM, Jim Brown wrote:
> > On 3/24/2013 9:42 PM, Jim Hoge wrote:
> >> Today I discovered that I have had environmental ingress beneath the
> >> outer jacket of some ~8 year old LMR-400.
> >
> > In the latest (I think) version of his excellent Managing Interstation
> > Interference," W2VJN notes that he observed degradation in the measured
> > performance of stubs made of LMR400 that had been sitting in his garage
> > for a bit less than a decade. He seemed to think it was due todegraded
> > contact between the foil and braid shields. This was written several
> > years ago. He may have more to say about it by now.
>
> We've known for years the UF versions of the LMR cables deteriorate out
> in the elements. It follows that they'd possibly do so with age as well.
>
> I found that the braid had almost disentegrated in some pieces of
> LMR400UF where the jacket "appeared" to syill be in good shape. I
> thought perhaps the jacket had become porous, but perhaps not?I wonder
> which LMR400 he's talking about.
>
> 73
>
> Roger (K8RI)
>
>
> >
> > 73, Jim K9YC
> > _______________________________________________
> >
> >
> >
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