[TowerTalk] Coax

[Steve Maki]

On 4/9/2012 9:04 AM, Jim Thomson wrote:
>
> ## If you are implying that  dc resistance is the predominant factor
> in coax cable loss, then  all these various  formulae  + online loss
> calculators  must be out to lunch, and I find that hard to believe.

At low frequencies, dielectric loss is very low, gradually rising with 
increasing frequency. At some frequency dielectric loss takes over, but 
that frequency is way above HF. At HF it's all about DC resistance. HF 
is practically DC in the overall scheme of things...

-Steve K8LX