Jochen Kunz wrote about CI cables:
Aren't those just ordinary RG-8/U / RG-213/U style
50 Ohm koax cables
with ordinary TNC connectors and an extraordinary blue color?
Guy Sotomayor wrote:
Don't know. From what I can remember (I have a
bunch of them) they're fairly
thick and heavy.
That's certainly consistent with RG-8/U (obsolete) or RG-213/U.