On Tue,2/17/2015 7:16 PM, TexasRF--- via TowerTalk wrote:
the dielectric constant dictates the center conductor size.
The low density foam dielectrics require a much larger center conductor to maintain a 50 ohm impedance and the lower losses are a result.
Right -- except that I'd rewrite slightly by saying that "a low density
foam dielectric ALLOWS a much larger center conductor for the same
diameter cable. "
So, indirectly the dielectric does contribute to the loss in a given size cable.
Yes. But that's its ONLY contribution to lower loss.
73, Jim K9YC
_______________________________________________
_______________________________________________
TowerTalk mailing list
[email protected]
http://lists.contesting.com/mailman/listinfo/towertalk
|