> On Jan 23, 2018, at 1:35 PM, Mark Kahrs via cctech <[email protected]>
> 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
