Dear Mr. Roy Lewallen,

Thank you very much for the details.

Now,
I would like to acknowledge that
after a one-by-one symbol comparison I made
between the two power formulas,
the one corrected by you and the mine,
I discovered,
beyond to be equivalent,
a fact which was lacked my attention,
since I had packed the two phase factors,
in the _notorious_ third term,
under a common symbol td.

Namely,
following your symbolization for convenience,
we have

From the 2nd article by you

| ...
| UP = fop - rap + (|fee|^2 / |Z0|) * rhea * exp(-ax) *
| 2 * sin(box - 2 * phi) * sin(delta)
| ...
|

and in conjunction with the 1st article by you

| ...
| Interestingly, the right hand term also goes to zero when
| box - 2 * psi = n * 180, where n is any integer including zero.
| That means that,
| even when Z0 is complex, the average total power will be the
| difference between fP and rP at particular points along the line, or at
| the input end of particular line lengths.
| ...

we can conclude that
this is a most interesting correct result, indeed.

But I am afraid
this difference
has its chances to be a negative number.

And
if this is the case
then,
as we can see,
we are running in big troubles...

Sincerely yours,

pez
SV7BAX

P.S.
Please remember to send me the lossless case.
I look forward for it.

| Roy Lewallen wrote:
| ...
| You've been the only one to show any interest so far. If one other
| person requests it, I'll post it. Otherwise, I'll email it to you.
| ...