[TowerTalk] Preferred type of coax to be used for jumpers in a multi-operator room ?

Jim Brown jim at audiosystemsgroup.com
Wed Sep 4 15:54:18 EDT 2019


Yes. I have no means of measuring this, but based on the physics and 
assuming equal quality and equal density of the braid, I would expect 
the larger coax to have better shielding.

73, Jim K9YC

On 9/4/2019 12:31 PM, Gedas wrote:
> It will depend on who makes the cables you are comparing. If both are 
> M17 rated then both should be double shielded and use silver coated 
> copper conductors which is good but some manufactures may use 95% braid 
> coverage while some may use less. Some may use 95% for both shields 
> others may use 95% for the outer and less for the inner. Also the angle 
> of the weave also affects the shielding effectiveness. This SE will also 
> vary with frequency. But in general, esp for HF use, you will find both 
> to have similar shielding performance as long as you stick to a known 
> trusted & respected name brand. Also keep in mind the dielectrics are 
> totally different between the two.



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