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Old May 17th 09, 10:56 AM posted to rec.radio.amateur.antenna
Szczepan Białek Szczepan Białek is offline
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First recorded activity by RadioBanter: May 2009
Posts: 197
Default Frequency doubling


"Richard Clark" wrote
...
On Sat, 16 May 2009 20:05:28 +0200, Szczepan Bia?ek
wrote:

The most valuable was your statement: " An antenna radiates in ALL
directions from EVERYPOINT of
the antenna."
It meens for me that they are longitudinal.


Well, no one expects you to explain that, much less that you
understand it yourself.


Next your statement: "Actually you have mixed up two different
characteristics. Polarity
and polarization are NOT the same thing. With RF radiation, the wave
is constantly changing polarity (that is why the source of RF is
called alternating current), but within the "line of sight" of the
antenna, the polarization for a dipole is defined by its angle to the
earth as viewed by the observer.

If you see an horizontal dipole, it produces alternating polarities of
waves with horizontal polarization. If you see a vertical dipole, it
produces alternating polarities of waves with vertical polarization.

RF energy is ALWAYS changing polarity."

May be I do not understund but it seems that polarization means orientation
of the dipole.
But are the waves transversal?



So why do you post here?


Is another group on antennas?


What would that matter? It is obvious you are not really interested
in antennas - you clearly avoid the discussion of that topic.


I am interesting in what antennas radiate.

So why do you post here?


Here are experts.
S*