"Dr. Slick" wrote in message
om...
"David Robbins" wrote in message
...
"Dr. Slick" wrote in message
m...
(David or Jo Anne Ryeburn) wrote in message
.. .
ok, i quit... i have shown several times that the calculation of vswr
from
rho only applies in ideal lines, you can not use it in lossy lines
because
of the simplifications that went into deriving it. if you insist on
harping
on this point how can you ever open your eyes to see the rest of the
errors
in your calculations.
25' of RG-8 isn't THAT lossy.
Once again, where and when and how did you do a measurement? When
you get a rho greater than 1, the VSWR = (1 + |rho|)/(1 - |rho|) gives
ridiculous
NEGATIVE SWRs. And rho WILL give you the SWR, assuming your
tranmission
isn't extremely lossy. This is why people say that the SWR meter has
to
be at the antenna, instead of at the end of 100' of RG-58.
You are quitting because you can't really answer this question.
Slick
you really are hopeless... that formula for VSWR is not valid when the line
has losses, and you can only get rho 1 when the line has losses.... see the
catch 22????