Total posts : 45366
I’m sure that there are many people here more knowledgeable than me. I’m just reporting my experience – I can get a listenable signal much farther transmitting in mono rather than stereo. I’m not sure why.
As for the stereo indicator – I think that is pretty much a moot point, as even in Canada a stereo signal would not remain stereo very long before the receiver switched ovear to mono (and that’s with our increased field strength limits) – I figure less than 100 meters from the antenna line of sight for a sensitive car receiver. In the U.S., that would be less than 25 meters on that same car radio, and much less for an ordinary portable stereo.