That list looks like something out of an old Haruteq scanner book database. LOL. Does that bring back memories
OPP are on a Bell Mobility Radio system called Fleetnet. They use analog portables with digital car radios. The UHF repeaters are analog , while the VHF Fleetnet frequencies are broadcast through digital modulation called P25. A digital scanner is required to hear the audio of fleetnet, but the UHF frequencies can still be picked up by an analog scanner. The UHF frequencies only are transmitted through a repeater range of a few km's from the OPP cruiser.
There is a stronger signal you may pick up in local areas called a Beat Repeater. 413.5375 was the common beat repeater frequency, and that can usually be picked up 10-15 km's away, but they vary. There is a list on this forum that someone created of all the BEAT repeater sites in the province. Which cities/towns have them. They are analog signals, so they can be picked up as well.
Your best bet would be to get a digital scanner. You would hear a lot more then the certain assigned talkgroups, that they have on the car, and beat repeaters that i mentioned. If you need help programming it, prvt message me, or look on the forum for how to program scanner for fleetnet.
As for the inputs, i onced tried this out of curiousity and fun, and have discovered you need to literally be close to an OPP officer with his portable. Its not like that repeater signal 410.8625. It is possible, but the signal is much weaker on the input to pick up on your scanner, then the repeater's output. Your only picking up the signal strength emitted for the OPP portable unit, with no signal boost from a repeater. I have no idea what the output signal is on the portable, in watts or rf strength emitted.