Gene Fuller wrote:

Cecil,

They were undoubtedly confused by their models, and they could not deal
with reality.

73,
Gene
W4SZ

I guess one could infer that that if G / C R / L, and R + jwL G +
jwC, then perhaps there are losses. I would only add that there are
probably also small currents in shunt distributed along the line.

73, ac6xg

Cecil Moore wrote:

Gene Fuller wrote:

Try it.

I believe you will find that your equality requirement on angles
reduces to precisely the simple equation offer by Reg.



Exactly! That's why I wonder why Ramo and Whinnery said it's an
approximation.

Wonder why Ramo and Whinnery say that's an approximation for low-loss
lines? If the R+jwL angle is equal to the G+jwC angle, doesn't that
make Z0 purely resistive?


--
73, Cecil http://www.qsl.net/w5dxp