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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 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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