"Dave" wrote
...

"Szczepan Bialek" wrote in message
...


I took a glance on my very old radio (it has the all waves) yesterday. No
possibility for doubling. All bands are arranged in such way that no
possibility.

but amateur bands were initially assigned so that harmonics ended up in
the next higher band... but because transmitters generated harmonics
because of their design, not because the antennas or ionosphere created
them.

Discussion with Wim: "In case of non-linear parts in a system (for example
a corroded
connector in an antenna cable that is used by two or more
transmitters, that may behave as a semiconductor), you might get so
called mixer products (sum frequencies, harmonics, difference
frequencies, etc)."

My answer was: "Harmonics may be the reason that nobody have seen the
Phenomenon."

So why do you post here?

I collect evidences that Radio Waves are longitudinal.
The harvest is huge in your Group.
S*

then you REALLY need to talk to art, his waves are caused by magical
levitating diamagnetic neutrinos jumping off the antenna when the current
flows in, that would fit nicely with your misguided theory.

It is not mine. It is by Ampere, Gauss, Weber, Helmholtz and many other
prominent scientists.
Helmholtz wrote the same equations for whirls in fluids. Maxwell admited it
in his Treatise "On line of forces".
So EM is the hydraulic analogy. Now for electrons the Gas analogy is better.
I am only a kibitzer.
S*