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Re: [TowerTalk] RG-304 for CMC ?

To: towertalk@contesting.com
Subject: Re: [TowerTalk] RG-304 for CMC ?
From: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Sun, 24 Apr 2016 17:14:14 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
What's the difference between using LMR-400, or BuryFlex with six 12" dia Loops equally spaced, compared to bundling the same size loops into a single bunch or for that matter, grouping any coax together rather than equally spaced loops? It'd lower the resonant frequency, but other than that (and looking neater), what about the choke's characteristics? Would it narrow the range of high impedance? Lower, raise, or leave the maximum impedance unaffected?

73

Roger (K8RI)



On 4/24/2016 Sunday 1:11 PM, Jim Brown wrote:
On Sun,4/24/2016 10:03 AM, Jim Thomson wrote:
Never heard of silver plated steel being used b4.

That would be fine above about 10 MHz, but steel coated with anything greatly increases conductor resistance below a few MHz as compared with solid copper. You can see this in Belden's published data for their cables.

73, Jim K9YC
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73

Roger (K8RI)


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