"elfa" wrote in message
...

Apparently, there are several kinds of FM signals being used. Vertical,
horizontal, and circular polarized signals. Don't ask my for a technical
explanation. I'm wondering if an FM stations signal type can affect how
well
you can get the station with a generic FM radio.


Nearly all FM's now use circular polarization for their main antennas.
Circular polarization is less efficient, power wise, than a simple dipole,
but they do tend to penetrate better into crowded urban areas than either
horizontal or vertical polarization.