"Dave" wrote in message
news

"Szczepan Bialek" wrote in message
...
Take a rest in reading and look at the oryginal Hertz apparatus as the
two sources of longitudinal waves (radiated from ends). You should see
the Luxembourg effect (frequency doubling) and directional pattern.
S*

but you don't because that is not how it works. the waves are radiated by
the whole length of the connecting wire and are transverse... there is no
frequency doubling as you explain it.

.... and the so-called 'Luxembourg effect' is not frequency doubling but
cross modulation; that is, generation in the ionosphere of intermodulation
products that carry the modulation of both sources. Third-order IPs are
usually much more important than harmonics when they fall in the same band
as one or more of the generating signals.

Chris