Uzytkownik "Richard Harrison" napisal w
wiadomosci ...
Peter wrote:
"----- it is a challenge to make it clear and consistent."

For me. no one does a better job than Dr. Frederick Emmons Terman who
wrote on page 1 of "Electronics and Radio Engineering":
"Electrical energy that has escaped into free space is in the form of
electromagnetic waves. These waves, which are commonly called radio
waves, travel with the velocity of light and donsist of magnetic and
electric hields that are at right angles to each other and also at right
angles to the direction of travel."

The rest is in the book which should be consulted for a complete
definition.

Maxwell proposed EM to explain the polarization of light.
Now the radio waves are or are not polarized.

Wiki wrote: " FM radio
The term "circular polarization" is often used erroneously to describe mixed
polarity signals used mostly in FM radio (87.5 to 108.0 MHz), where a
vertical and a horizontal component are propagated simultaneously by a
single or a combined array. This has the effect of producing greater
penetration into buildings and difficult reception areas than a signal with
just one plane of polarization. This would be an instance where the
polarization would more appropriately be called random polarization (or
simply unpolarized). See Stokes parameters."

Why "erroneously"?

Are the radio waves different than light?

S*



Best regards, Richard Harrison, KB5WZ5