p25 ohio

I'm new to scanning. My little brother is in love with firetrucks, police etc. and has begged our family to get him a scanner, so I've bought this for him and I'm trying to get this thing figured out so he can hear stuff going on. I've read the "Factory" RadioShack .pdf manual...

OK a person on eBay is selling a Harris P 25 radio communication mobile base for a cruiser I am interested in purchasing it however in the listing he states what the radio can pick up in relay traffic back inthe description he list Ohio Parma and medina MARCS P 25 Parma and Ottawa county and...