Ummmm, look: Here is why answering an open ended question like yours is essentially impossible.

Who has a large financial interest in reaching an answer to this exact question? FM broadcast stations, that's who.
For transmitting. But, there remain about a half-dozen manufacturers still in that business, competing, and if one were
"The Best", then the others would quickly disappear from the business. For example, Andrew, Dielectric, Jampro,
Shively, and Superior are all still in business, AFIK, but are likely too pricey for your requirement. I happen to
prefer the Jampro myself. And Richard Harrison may have newer catalogs than I have at the moment.

And, when you put the unrealistic 1 meter dimensional restriction on it, then this "Best" description fails totally.

--
Crazy George
Remove N O and S P A M imbedded in return address
"Linux Lover" wrote in message om...
Is there a product you can recommend as "The Best Omnidirectional FM
antenna"?

If so, which one is it? (brand/model and/or URL please)

Oh - one significant constraint is that it cannot be larger than about
3 feet (1 meter) in any dimension, because it is going to be installed
in my attic. I know it cuts the signal by 50%, but I am willing to
live with that since I am assuming that if a whip antenna on a
portable radio works great in my basement, a **good* omnidirectional
FM antenna in the attic must work *at least* as good...

An extensive search yielded only the Triax omni FM:
http://www.towerhillaerials.com/view...&orderNumber=0
But where can you buy it in the USA?

I also found an ANTENNACRAFT FMSS at STARK Electronics:
http://www.starkelectronic.com/acantena.htm#FMSS, but the specs at
that site say Boom length is 8' and Maximum Width say 55'. These can't
be feet, right? They surely confused the foot symbol (') with the inch
symbol (") - or did they?

Anyway, any tip you can provide on finding such an omnidirectional FM
antenna would be highly appreciated. VHF/UHF omnidirectional antennas
that do *not* trap the FM band with a notch filter are welcome, too.

Thanks,
Lynn