Welcome to the scanning hobby. There is a lot to learn about scanning with the P25 radio systems. I suggest that you spend some time looking on the internet to learn a little bit about P25. I say this because the Columbus OH area uses the Ohio MARCS system for most all police/Fire/EMS radio traffic.
Here is a link to the Ohio MARCS-IP: Multi-Agency Radio Communications system:
Spend some time watching videos on how to program your scanner with software, the time will be well spent.
Sentinel Software Beginners Guide: