Autoelectronic emission
"Rob" napisal w wiadomosci
...
Szczepan Bialek wrote:
Electrons escape from each charged body. Your antennas emit electrons and
for this reason they need the sink of electrons (the earth/chassis/
counterpoise).
Of course not.
Not only is this effect too small to be measured at voltages common
on a transmitter antenna, the voltage is also AC so these effects will
cancel out along the cycle of the AC wave. The net result will be zero.
No. "Once liberated, electrons are strongly repelled by the high electric
field near the electrode during negative voltage peaks from the oscillating
HV output "
There can only be a net current when there is a (large) DC voltage on
the charged body, which is not the case on a transmitter antenna.
In a transmitter antenna is the "oscillatory flow of electrons" with the net
current from the earth into air.
S*
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