For the conventional frequencies, yes. Whether they will work or not, I don't know. The MARCS system is digital. See here: State of Ohio MARCS - Multi-Agency Radio Communications - The RadioReference Wikithank you for the reply, i did get the frequesncies. then i read somewhere else after i did a search in the forum about someone else asking for ohio frequecies and read about the marcs system. so i made the second post about that, from the data sheet i read i got the freq's but now im left confused, can the scanner i have work for what i need it to do?