Hey
@juicey67jan, unfortunately the Baofeng UV-5R is a very, very low end handheld transceiver. Not really meant for scanning. Due to that, it's not capable of receiving the OPP, since they use P25 voice modulation across the board. The exception would be the
BEAT repeaters, and the odd vehicular repeater you've picked up. They are fairly low power though.
Similarly, the EMS are on a
trunked radio system, which you cannot program in either. You could attempt putting in the frequencies for the
trunked system tower in your area but you'd get a lot of data noise often and cannot truly "trunktrack" the system properly.
EMS are currently still analog, so you could make the attempt to listen to the
pagers or the vehicle repeaters in the hope one is somewhat nearby - the repeaters operate on a very short range.
If you program any of these in, be sure to make sure you've set it up just for receive... keep the TX far far away from the frequencies to avoid trouble if you accidentally open the mic up. Or disable it overall if that's an option. Overall most people would not suggest trying to use this unit for any kind of scanning.
I do highly suggest selling that unit and getting a proper scanner. You can easily receive the OPP / EMS on older models like the 996T and 396T. I believe there's a few Whistler models that are on the cheaper side even new that will be P25 Phase 1 capable and work fine for you.
It's also worth noting that, if your only intention is to listen to OPP and EMS, they are in the process of
moving over to a fully encrypted system.
That's why I'd shoot for an older scanner if that's your only listening intentions at the moment.
Hope this has been of some help.