"Harry" wrote about Roy Lewallen:
You may want to write a book titled "Story of the 73 Ohms".
___________

It should include the point that the 73 ohm radiation resistance value
applies to a physical 1/2-wave, thin-wire, linear dipole in free space, and
that a reactance term of + j42.5 ohms also applies to such a configuration
(Kraus 3rd Edition, p. 182).

The dipole length needs to be shorted by a few percent in order to zero out
the reactance term, at which time the resistance term will be about 65 ohms.

RF