Re: [TowerTalk] RG-304 for CMC ?

["Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>]

Center conductor is silver plated copper strands with a steel core which 
I'd never seen before.
73

Roger (K8RI)



On 4/24/2016 Sunday 1:03 PM, Jim Thomson wrote:
> ##  It looks like  304  is .280 OD.... which Im  sure is bigger than 
> 8X (.249)
> It appears the center conductor on 304 is 1.5mm  = .059 inch  = 14.5  
> gauge wire.
> The center conductor consist of silver plated steel !    Solid too, 
> not stranded.
> Never heard of silver plated steel being used b4.
>
> Jim  VE7RF
>
>
> -----Original Message----- From: Peter Voelpel
> Sent: Sunday, April 24, 2016 9:46 AM
> To: 'Jim Thomson' ; towertalk@contesting.com
> Subject: RE: [TowerTalk] RG-304 for CMC ?
>
> Its much smaller then RG-8X, but a little larger then RG-142.
>
>
> http://www.caledonian-cables.co.uk/Coaxia_Cable/M17_RG/RG304.html
>
> 73
> Peter, DJ7WW
>
>
>
>
>
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of 
> Jim
> Thomson
> Sent: Sonntag, 24. April 2016 18:36
> To: towertalk@contesting.com
> Subject: [TowerTalk] RG-304 for CMC ?
>
> Does anybody know anything about  RG-304 ?    Its  aprx  .271 OD.... 
> and has
> teflon  + silver braids /center conductor.
> Im having a helluva time trying to find out what gauge the center 
> conductor
> is.  Does anybody know ?
> I think  304  is  sorta the teflon version of  RG-8X, and aprx the 
> same  OD.
>
> If you can wind RG-58  and  also possibly  RG-8X  onto a stack of 
> torroids,
> then there should be no issue using RG-304.
>
> IF  304  has a bigger center conductor than  303 /400 coax, then it 
> might be
> an excellent candidate for applications
> where a high powered CMC is required.     RG-393 is .392 OD.... slightly
> less than the .405  found on 213-U.
>
> I'm looking for a possible alternative to 393,  but cant find any V 
> rating,
> power ratings  or attenuation charts for 1-54 mhz...for  304 coax.
>
> I have also looked at some of the plenum rated small coax, but the 
> price is
> sky high...and difficult to locate in small  qty.
>
> Jim   VE7RF
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--

73

Roger (K8RI)


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