"Jeff" napisal w wiadomosci
...


You are ordering me to read the above. Why you do not read it.
There is wrote:
"A further feature of the structure of negative coronas is that as the
electrons drift outwards, they encounter neutral molecules and,
withelectronegative molecules (such as oxygen and water vapor), combine
to
produce negative ions. These negative ions are then attracted to the
positive uncurved electrode, completing the 'circuit'.". From: Negative
coronas. Mechanism.
http://en.wikipedia.org/wiki/Corona_...gative_coronas

"The difference, then, between positive and negative coronas, in the
matter
of the generation of secondary electron avalanches, is that in a positive
corona they are generated by the gas surrounding the plasma region, the
new
secondary electrons travelling inward, whereas in a negative corona they
are
generated by the curved electrode itself, the new secondary electrons
travelling outward."

"in a negative corona the electrons are generated by the curved electrode
itself".

Is the field electron emission from the tip top of antenna or not?

S*


Yes it is, but the effect being talked about is corona discharge, and has
nothing to do with the wanted radiation of radio waves. It is an
*unwanted* effect on normal antennas, and occurs when the voltage at
certain points gets high enough to cause ionization of the air. I repeat
it is normally an *UNWANTED* condition on a normal radio antenna used for
communication.

And the "normal" remedy for it is the earth/chassis/couterpoise.
S*