On Sat, 3 Dec 2005 11:51:14 -0800, "Jim"
wrote:


The phase velocity for most coax cables are similar, so I'd use RG-8 since
that accepts type N connectors reasonably well. The impedance bump caused
by a thinner cable being adapted to type N cables would be noticeable
especially at higher frequencies.

The only major question is whether the original cables had a different
velocity factor, and that I can't answer so I'd use the RG-8 and it should
be close enough.

Is the Zo of RG8 52 ohms?

Is the instrument 50 ohms?

Would RG8 introduce error?

Owen
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