[TowerTalk] RG-304 for CMC ?

[jimlux]

On 4/24/16 10:03 AM, Jim Thomson wrote:
> ##  It looks like  304  is .280 OD.... which Im  sure is bigger than 8X
> (.249)
> It appears the center conductor on 304 is 1.5mm  = .059 inch  =  14.5
> gauge wire.
> The center conductor consist of silver plated steel !    Solid too, not
> stranded.
> Never heard of silver plated steel being used b4.

Silver plated stainless steel is used for cryogenic applications: low 
thermal conductivity.

Cable TV coax is copper plated steel.

One would want to know the thickness of the plating: at microwave 
frequencies, it's probably > skin depth, but at HF (10MHz), skin depth 
in copper is about 20 microns, silver will be slightly shallower (goes 
as sqrt of resistivity)