ok excuse the ignorance ..i purchased a scanner from scanner masters to listen to police ems fire ect...it is on the marcs system..i paid more for it because i know nothing about this and a friend purchased one and was very happy and lives in the same area so i know i should get something...I;ve heard a quick word or two but came across so fast couldnt tell who it was ...it keeps saying..clinton ( the county i live in .ohio ) marcs...scanning id...