Mr Dave

Can you mention the process that you followed
(programs that you used, in what frequency, wire's radius,
value for the conductivity etc)
in order to make this analysis?

I am surpised that you've found this value
for the input impedance, which is so different
from the one I calculated.

Finally, can you explain what you mean by
finding 93.1% resonance of the antenna?

Dimitris I.