Ok, so trying to summarize your answers, it seems that
- Electric and Magnetic fields, effectively, go together, but
their ratio may vary, especially at the antenna's near field.
- Cecil Moore says in free space this ratio is the 377 ohms
characteristic impedance. I don't know how to mathematically
check this, but seems reasonable to me.
- It is clear that polarization is an important factor in
rejecting noise. I never doubted that.
So, apparently, it would be clear that
- a reception system capable of discriminating electric/magnetic
fields should be able to reduce unwanted noise from near sources
and
-adding the capability to discriminate different polarizations
would also help with noise from both near and far sources.
Correct?
73,
EA3FYA - Toni
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