Date: Sun, 24 Apr 2016 10:11:15 -0700
From: Jim Brown <jim@audiosystemsgroup.com>
To: towertalk@contesting.com
Subject: Re: [TowerTalk] RG-304 for CMC ?
Message-ID: <571CFE33.6000908@audiosystemsgroup.com>
Content-Type: text/plain; charset=windows-1252; format=flowed
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
## I think K9YC is correct, the solid steel core is bad news < 10 mhz. 304
is priced really stupid too, as
in you don’t want to know.
## why would they use steel, instead of copper...or silver plated copper ?
## On a similar note, its too bad somebody doesn’t make teflon coax, but use
just a SINGLE copper braid,
and a stranded copper center conductor. IE: dont silver plate anything. ’
RG-393 is good stuff, but Im
sure it could be made a helluva lot cheaper is they dumped the double
braids..went to a single braid, and no silver plated
braid or center conductor. Sorta like taking 213-U...and replacing the solid
poly dielectric and replacing it with teflon.
You really don’t require the FEP-9 megabuck outer jacket on 393 either. No
wonder 393 costs an arm + leg.
Where is Steve Davis when you need him.
Jim VE7RF
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