Owen Duffy wrote:
What is this "we" business? That is your conclusion

Hams have a habit of saying "we", Owen. Are you a ham?
We have an IC-756PRO. We are a Texas Aggie. We drive a
GMC pickup. We are not married.

What is the cos(0) term for Cecil? Are you implying that the phase angle of
Zo is 0? That isn't true in the general case, it is true ONLY for lossless
or distortionless lines.

We sometimes assume lossless lines for the sake of discussion
which is often a close enough approximation to real-world
lines. We don't have our books with us but seems we remember
that the Z0 phase angle for common Z0 lines is about 1-2
degrees.
--
73, Cecil http://www.w5dxp.com