Experimental Ethernet, XGP, etc.

[Paul Koning]

> On Jan 23, 2018, at 1:35 PM, Mark Kahrs via cctech <cctech at classiccmp.org> wrote:
> 
> A few notes:
> ...
> The vampire tap transceiver used RG-8 cable originally.  That's before they
> added the lines around the cable and added additional shielding.

The cable spec given in the Ethernet standard doesn't mention additional shielding.  It does differ from RG-8 in that it calls for foam dielectric and a higher velocity factor (0.77 rather than 0.66).  Another common difference (not required by the spec) is that RG-8 is polyethylene while Ethernet coax is usually PTFE.

	paul