[TowerTalk] [CQ-Contest] RG-6 connector issues/ rcv array

[David Robbins K1TTT]

That used to be a big problem for cable tv companies that used hardline with
copper center conductors.  The coefficient of expansion of the copper was
more than the aluminum shield and the copper would pull back out of the
connectors when it got too cold.  Later designs of hardlines used copper
clad aluminum center conductors that apparently didn't have that problem.


David Robbins K1TTT
e-mail: mailto:k1ttt at arrl.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
 

> -----Original Message-----
> From: cq-contest-bounces at contesting.com [mailto:cq-contest-
> bounces at contesting.com] On Behalf Of Mike Fatchett W0MU
> Sent: Friday, January 18, 2008 22:46
> To: cq-contest at contesting.com; towertalk at contesting.com;
> topband at contesting.com
> Subject: [CQ-Contest] RG-6 connector issues/ rcv array
> 
> Just a heads up.  I was having some problems with my 4sq receiving array
> and
> found that the coax was pulling back from the connectors so that there was
> no contact being made.  These were on high quality cable and the
> compression
> connectors.  I built this antenna when it was warm.  It is now very cold
> and
> been below zero.  I wonder if that has anything to do with this issue.
> 
> Hopefully now I will see some better performance out of the array.
> 
> I also found that one of my ground had been removed, probably by the
> horses.
> 
> 
> Mike W0MU
> 
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