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Re: Topband: RG-6 questions

To: "Richard (Rick) Karlquist" <richard@karlquist.com>
Subject: Re: Topband: RG-6 questions
From: Bill Wichers <billw@waveform.net>
Date: Mon, 16 Mar 2015 13:02:45 +0000
List-post: <topband@contesting.com">mailto:topband@contesting.com>
There isn't much difference in loss with the CCS center conductor. If you have 
very long runs and power remote equipment with power injectors then the DC 
resistance will likely be more of an issue. 

You can get RG6 with a solid copper (BC) center conductor. This type is sold 
for satellite tv (where there is a relatively high DC current on the coax 
powering the LNB at this dish). BC center conductor coax is also commonly used 
for security cameras where baseband video signals are in use. It's also 
possible to get RG6 sized cable with a copper shield although there really 
isn't any value to that variant in our application. 

For suppliers, I'd try local commercial distributors first (graybar is a large 
national supplier), or mail-order satellite TV suppliers. If you go mail order, 
be careful what you buy. I found some of the non-branded RG6 to be of very poor 
quality once with only about a 20% shield coverage.

-Bill KB8WYP

Sent from my iPhone

On Mar 16, 2015, at 1:41 AM, "Richard (Rick) Karlquist" <richard@karlquist.com> 
wrote:

> Most RG-6 has a copper clad steel center conductor.
> Does anyone have data on what the loss of this
> type of cable is at 1.8 MHz compared to solid
> copper center conductor?  Any suggestions
> for RG-6 with a solid copper center conductor?
> I see Belden 1694A, 7915A, 7916A and 9248 in
> the catalog, but don't know if any of this is
> available in distribution.  Can anyone suggest
> some good distributors to buy quality RG-6?
> Thanks.
> 
> Rick N6RK
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