>From: Kevin Custer <[EMAIL PROTECTED]>
>Reply-To: [email protected]
>To: [email protected]
>Subject: Re: [Repeater-Builder] Re: LMR feedline revisited and revised!
>Date: Thu, 22 Mar 2007 17:59:22 -0400
>
>
>>>I'd agree. Anyway, we all know how aluminum likes to oxidize anyway. Even
>>>if it's aluminum braid against aluminum foil, it will turn to crap in
>>>short order.
>>>
>>>Chuck
>>>WB2EDV
>>>
>>
>>Barry C' wrote:
>>Can't be sure , I have over the years installed quite a bit of quality
>>quad and tri shield coax in various situations and it has lasted
>>suprisingly well with quite noise free use so until proven otherwise I
>>have to assume a corretly fitted cable has a good chance of performing.
>
>There are several leading antenna site managers that won't allow aluminum
>cables near their site, period. Aluminum sheathed cables have always been
>bad news where intermod is concerned. Com Scope made an aluminum sheathed
>cable that was used in the cell phone industry for a while. It has faded
>away and they now make a similar product, but it has an all copper sheath.
>Even if the connectors were installed and weatherproofed correctly with the
>all aluminum cable, the systems proved troublesome after some time.
>Andrew and other companies have done exhaustive testing on different types
>of cables. Their information is readily available for download and review
>on your own.
>
>It wonders me why people will spend hundreds (thousands) of dollars on
>repeaters, towers, antennas, duplexers, preamps, etc, and will skimp on the
>damn feedline. Nothing beats Andrew Heliax and Superflex for tower feeder
>and interconnecting cables. They are known to last for years and years.
>
>Good luck with your aluminum braided coax in duplex service, I won't be
>using or recommending any!
>
>Kevin Custer
My point being we simply don't know , I use hardline all over on pretty much
everything but then I can , the cable might be ok in fact as I see the
newer coax much improved over what I had access to even 10 years ago .
I was working on a nice little unit last week (18 M dish) , feed line is
nitrogen filled , seems to work ok .
Shame we cant afford the use of such stuff .
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