On Tuesday, July 10, 2012 11:49:52 AM UTC-5, Szczepan Bialek wrote:
The currents consists of electrons.

Sorry, electrons cannot move fast enough to support RF current which cannot flow inside a wire. The RF EM wave flow is supported by photons moving at the speed of light in a cloud surrounding the wire.

Does it means that the electrons jump off from the end of the radiator?

Electrons are known to "jump off from the end of the radiator". It's called corona and it is visible at night. Fortunately, it happens only under special conditions because that energy is not coherently radiated, i.e. not useful for anything except melting the ends of an antenna.

In Faraday time no such meters but Faraday had know that electrons (nuclei)
jump off from the end of the open circuit.

Yes, arcing is a common occurrence. Unfortunately, nowadays it is useless (and illegal) for RF communications. BTW, nuclei is plural for nucleus and there are no electrons in the nucleus.
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73, Cecil, w5dxp.com