Keith Dysart wrote:
Excellent. So there is NO reference that claims
that the output impedance can not be used to
compute the reflection coefficient.

That is probably a false statement. I just haven't
wasted my time looking for a reference that uses
those exact words.

There are many references that do.

I seriously doubt that they say what you are
asserting. Please produce those references.
In another thread, I proved your assertion wrong.
A Bird wattmeter placed at the output of your source
will read forward power = reflected power. The
reflection coefficient can be calculated from
that. rho = SQRT(Pref/Pfor) = plus or minus 1.0
--
73, Cecil http://www.w5dxp.com

On Jan 3, 2:10*pm, Cecil Moore wrote:
Keith Dysart wrote:
Excellent. So there is NO reference that claims
that the output impedance can not be used to
compute the reflection coefficient.

That is probably a false statement. I just haven't
wasted my time looking for a reference that uses
those exact words.

There are many references that do.

I seriously doubt that they say what you are
asserting. Please produce those references.

One has been directly provided, though many
more are available using the google searches
previously suggested.

But that one is infinitely more than those
available supporting the opposite view.

In another thread, I proved your assertion wrong.

Asserting that you have proved an assertion wrong
is not the same as proving it wrong.

A Bird wattmeter placed at the output of your source
will read forward power = reflected power. The
reflection coefficient can be calculated from
that. rho = SQRT(Pref/Pfor) = plus or minus 1.0

Of course. With one side of the Bird wattmeter
left open, it will happily measure the reflection
coefficient of that open. This says nothing about
the reflection coefficient of the line connection
with the source.

...Keith

Keith Dysart wrote:
Of course. With one side of the Bird wattmeter
left open, it will happily measure the reflection
coefficient of that open. This says nothing about
the reflection coefficient of the line connection
with the source.

Any way you choose to look at the example, the same
amount of joules are flowing into the source as are
flowing out of the source during any particular time
period. That is a power reflection coefficient of 1.0
Take the square root to find the voltage reflection
coefficient of plus or minus 1.0
--
73, Cecil http://www.w5dxp.com