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Re: [TowerTalk] Looking for a good small coax for 160, 75 and 40

To: TowerTalk List <towertalk@contesting.com>
Subject: Re: [TowerTalk] Looking for a good small coax for 160, 75 and 40
From: Bob Nielsen <n7xy@clearwire.net>
Date: Thu, 31 Jan 2008 08:52:20 -0800
List-post: <mailto:towertalk@contesting.com>
I once used RG-400 to feed an elevated 80 meter dipole.  It has a  
teflon dielectric (similar to RG-142 except that the center conductor  
is stranded copper instead of copperweld) so power handling wasn't a  
problem.  I don't know if it is more flexible than LMR-240 or not.   
It's not inexpensive, but held up nicely for 15 years until the  
station was dismantled.  I am currently running 600 watts into RG-8X  
but wouldn't want to go much higher in power than that.

Bob, N7XY

On Jan 31, 2008, at 1:17 AM, K8RI wrote:

> I have some LMR 240 as well as CNT-240 which works quite well.   
> Running the
> legal limit on these bands is right at the limits for these cables,  
> but they
> are  light and work well for dipoles as well as half wave slopers.  
> OTOH I'd
> like something more flexible like RG8-X, but RG-8X has relatively poor
> shielding.  OTOH it might work quite well for these installations.   
> And 8X
> is *inexpensive*
>
> I'll be using crimp connectors and flooded heat shrink for good  
> mechanical,
> waterproof  connections.  I'm just tryin to get away from the  
> weight of the
> RG8 and LMR 400 cables for these antennas.
>
> Any thoughts?
>
> Roger (K8RI)
>
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Bob Nielsen
n7xy@clearwire.net



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