[TowerTalk] Coaxial Cable Question

Pete Smith N4ZR n4zr at contesting.com
Wed Apr 9 16:14:58 EDT 2014

Byron, I recall that K1VR, who used to operate a cable company, used the 
rule of thumb of cutting off one foot per year stored outsdde from each 
end of each roll.  It's hard to imagine that this cable would be bad, 
but if you know the length you can certainly put a connector on one end 
and measure the loss.

73, Pete N4ZR
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On 4/9/2014 1:07 PM, Byron Tatum wrote:
> Hello-
>    I thought I would ask just to be sure. I brought home some NOS Belden RG-9A/U coax, still on a 1000' reel. The reel was stored inside in a radio shop in Okla City, and the wooden spool showed no signs of exposure. I really like to use the double shielded cables when I can. However, this cable dielectric has a very distinct yellowed appearance. The copper shields are nice and bright and show no discoloration, and the (gray colored) jacket looks nice.
>    Is this cable no good? I am thinking of installing connectors on it and measuring the loss, as I have no instruments other than an MFJ-259B ant analyzer.
> Any comments on this subject appreciated, as I have saw a yellowing in the dielectric of other cables.
>          Thanks, Byron WA5THJ
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