Thanks For the replys.
Location is hard to pin down, as they rarely give locations, I did hear them talk as if they were near Queens Park. The audio is very low and it is hard to make them out some of the time. Also it seems like they really don't use it a whole lot, either that or I am picking it up because of atmospheric conditions.
I am using a Pro 2006, I have not bought a digital radio yet. I have hooked up a better set of speakers to bring the audio up, so maybe I can learn more.
I believe the input of 413.5375 is 418.5375. I don't hear anything on that one.
As far as walking the beat, Wausaga, Grand Bend, but not at this time of year, and I have never seen OPP walk any beat after summer is over. I thought that maybe if they were out of the car they would use frequency 410.8625 the car repeater.
Anyway I will keep listening and update if anyone is interested.