[TowerTalk] Coax Losses on 160 and 75?

[Jim Brown]

Rick,

I don't see a conflict with what I've written on this topic. Unless 
you're expecting a complete treatise on the topic in every email.  :)  
I've repeatedly posted links to a complete discussion of these issues. A 
couple of posts back in this thread, I specifically said that the 
primary reason for using LARGER coax is that the resistance is lower 
because the shield and conductor diameters are greater, and that skin 
effect is directly related to conductor diameter. Several posters, 
including me, noted the relationship between frequency and conductor 
resistance. Must every concept be repeated in every post in a long thread?

73, Jim K9YC

On Fri,8/5/2016 7:26 PM, Richard (Rick) Karlquist wrote:
>
>
> On 8/5/2016 9:35 AM, Jim Brown wrote:
>
>> total resistance of their conductors at the frequency of interest. For
>> solid copper conductors, DC resistance can be compared, because
>> resistance at RF is a multiple of the DC resistance. For copper-clad Al,
>
>> 73, Jim K9YC
>
> Resistance at RF is a multiple of the DC resistance, but
> the multiple depends on the conductor diameter and frequency.
>
> Rick N6RK
>