phk@phk.freebsd.dk said: > I think the installation manual for Trimbles timing products say you can use > either 75 or 50 Ohm cable... I think they suggest using RG-6, the classic cable TV and/or satellite dish cable. It's widely available at low cost. The loss due to impedance mismatch is much less than the gain from the reduced attenuation when compared to equivalent size 50 ohm cable. -- These are my opinions. I hate spam.