Cecil,

I thought that we were considering steady state single frequency sine waves.
The whole thing becomes so much more straight forward when talking about
pulses.....

Tam/WB2TT
"Cecil Moore" wrote in message
...
Tarmo Tammaru wrote:
There are models for both lossy and non lossy transmission line. I have
not
used them, so it might take some learning. I can tell you though that
given
a load and transmission line, if you find the Z at the meter with an HP
vector impedance meter, and then put a lumped impedance of that same
value
at the meter, you will get the same results.

Not in reality, you won't. Any TV ghosting that exists because of
reflections will
disappear when you go to a lumped impedance. And the noise across the
lumped
impedance will not be identical to the noise associated with a long
transmission line.
--
73, Cecil http://www.qsl.net/w5dxp



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Tarmo Tammaru wrote:
I thought that we were considering steady state single frequency sine waves.
The whole thing becomes so much more straight forward when talking about
pulses.....

It is still straight forward when we take reality into account. :-)
Pure steady state single frequency sine waves, sans noise and/or
jitter, exist only in the human mind.
--
73, Cecil, W5DXP