Cecil, there's no need to rack your brains for hours trying to deduce
the antenna input impedance from the input impedance of the
transmission line. There's a computer program which will tell you the
exact answer in milliseconds. Download program ZL_Zin from website
below.
----
.................................................. ..........
Regards from Reg, G4FGQ
For Free Radio Design Software go to
http://www.btinternet.com/~g4fgq.regp
.................................................. ..........