Davis BuryFlex!! :-)
Chris
KF7P
On Mar 26, 2013, at 20:37 , Gary Mayfield wrote:
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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