On Fri, 26 Nov 2004 22:05:13 +0000 (UTC), "Reg Edwards"
wrote:

Bob, your program can probably calculate the input impedance, Rin + j*Xin,
of a line having Zo = Ro + j*Xo, with given attenuation Alpha dB, and given
phase-shift Beta radians, with a terminating impedance Rt + j*Xt.

Which is a commonly needed quantity on the way to calculating the ultimate,
all-important, single number, transmission efficiency.

But can you do it with nothing at hand except a Smith Chart?

And the answer is...







an unequivocal NO.

However, just to satisfy my curiousity, exactly which of your
beautiful, zipped up Pascal programs will do that for me?
Bob, W9DMK, Dahlgren, VA
http://www.qsl.net/w9dmk