Dave Shrader wrote:
Total loss = 10*log((a^2-|rho|^2)/(a(1 - |rho|^2))
ARRL Antenna 18th edition, Chapter 24, Equation 15
Whe a = matched line loss = assumed 1
The reference calls quantity "a" the "matched line loss ratio", and a
value of 1 means no loss.
Does this mean that you are calculating the line loss in a lossless line?
rho = 0.8181 reflection coefficient for VSWR = 10
+ + +
OOOPPPSSS!!! Math error!
Reviewing my calculations I made a major math error!! Glad I kept the
work sheet.
In the numerator I used rho^2 not (1 - rho^2).
Now I am glad I retired from Engineering. :-)
Thanks again Roy!!
Conclusion, after I failed my ALGEBRA course, sheepish grin, the
additional loss is zero within the stated assumptions. Which just proves
I made 'Much ado about Nothing'.
Deacon Dave, W1MCE
I'll say three Hail Mary's and three Our Father's, assuming I can still
count to three!!
+ + +
Roy Lewallen wrote:
You've still lost me. ... Where did it come from? How was it calculated?
Roy Lewallen, W7EL
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