Re: [TowerTalk] want place to lookup alum cable tv hardline specs

[Jim Brown <jim@audiosystemsgroup.com>]

On 7/8/2011 7:09 PM, TexasRF@aol.com wrote:
>
> Velocity factor is known to have variations from run to run, especially in
> the foam dielectric types of coax. This makes published data an
> approximation at  best.

Velocity factor also varies with frequency.  See 
http://audiosystemsgroup.com/Coax-Stubs.pdf

73, Jim K9YC
_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk