Total posts : 45366
Yes, the maximum allowed unlicensed FM signal strength, even in Canada, is miniscule; that’s why they allow it. But as I stated in my description of Artisan Radio, with the 100uv/m @ 30 meters limit in Canada (in the U.S. it’s 25), you can easily achieve 1 km range on a car radio with 40db quieting (almost no noise).
There’s an interesting sidenote to Canadian regulations. We have the 100mw limit for unlicensed experimental AM transmission, but if you are considered to be broadcasting, you are limited to a signal strength of 250 uv/m @ 30 meters. And the definition of broadcasting is so broad that pretty much anything transmitted can be considered broadcasting. So an unlicensed AM broadcast station in Canada (if you want to be legal) is much like unlicensed FM in the U.S. – unuseable.