On Mar 9, 1:42*pm, "Brenda Ann" wrote:
"Arny Krueger" wrote in message

. ..



- - Problem with whips is that they have vertical polarization.
- - FM is always transmitted with a strong horizontal
- - component, the vertical component is optional.

- Not true. FM is transmitted almost universally as
- circular polarization. This has been so for at least
- a couple decades now.

IIRC - Initially like TV the Horizontal Polarization scheme
was great for the Visual Line-of-Sight broadcasting from
the TV Station's Tower to Home TV and FM Radio.

But FM Radios problem was the Automobile and getting
a good quality FM Radio signal to the Cars and Trucks
which 99.73% of the time had Vertical Whip Antennas.

Circular Polarization allowed FM Radio to be broadcasted
equally well to both Home and Automobile; plus Circular
Polarization did help to eliminate some Multi-path problems.

sort of kind a right - to my ways of think ~ RHF