"Owen" wrote in message
...
On Wed, 06 Jul 2005 22:07:41 GMT, Owen wrote:


Apparently, the method involves calculation of a factor (let's call it
MR) as MR=|(Zl-Zo*)/(Zl+Zo)|, and the line loss between two points is
given by 10*log((1-MR1**2)/(1-MR2**2)) where MR1 and MR2 are the
values for MR at points 1 and 2.

Sorry, that gives the additional loss "due to SWR" which has to be
added to the matched line loss to obtain the total loss between points
1 and 2.

Zl in the formulas is the impedance (V/I) at the point where MR is
calculated.

Owen

Well, Owen, you might take a look at Appendix 8 of Reflections 2, which can
be found on my web site at w2du.com. Click on 'Read Appendices from
Reflections 2', the click on Appendix 8. I think what you'll see there will
be of interest.

Walt, W2DU