Yuri wrote,

Again, this subject of current distribution is important in optimizing the
antenna design by fine tuning the position of the loading coil in the
antenna,
combination with top loading etc. Morew current flowing in the radiating part
of the antenna - the stronger the field and louder signal.

What is "the radiating part of the antenna," Yuri?
73,
Tom Donaly, KA6RUH