[TowerTalk] Inner conductor migration in Heliax(TM)

[Dick Blumenstein]

Not sure what you mean by the "drums vertical"? Do you mean that the 
wire is mostly vertical being stored on the drums; that the drums are 
sitting on edge?

Dick K0CAT
=====================

David Aslin G3WGN wrote on 4/12/2016 2:33 PM:
> Hi all,
> Looking for the TT brains trust to help me out with this issue:
> I have two drums of LDF4-50 and one of LDF5-50 which have been stored on their sides for around 10 years.  This disobeys one of the prime directives, since Andrew/Commscope say they MUST be stored with the drums vertical.  My understanding is that the horizontal storage may lead to inner conductor migration.
> QUESTIONS: How can I determine whether migration has occurred; if so to what extent; and what extent should cause me to avoid using the cable for the 50m/165ft+ runs to my HF towers?
>
> Of course, if there is gross migration, a continuity check from inner to outer would reveal a short, but would a TDR or other method reveal performance degradation from lesser amounts of migration?
> 73, David G3WGN  M6O
>
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-- 


Richard (Dick) Blumenstein
Tel:  (386)  451-6660

E-Mail:  rcblumen at centurylink.net

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