As KS4VT stated. Buy a scanner. You can ask your System admin to program your personal radio to the system, Some will do it, and some will not. Usually most will not. It is really up to the system admin. For instance, Some agencies policies allow the authorized users to take home the agency radios with them, and some don't. Security is an issue as when the system admin " Which is why most will not program personal radio " if he deside to go ahead and program your personal radio, It will have a unique ID, and if you are to leave the agency, they will just deactivate that ID. The radio will not transmit on the system anymore, but will still be able to hear all conversations and is the reason it is usually not allowed by agency policies to program personal radios. Im sure there are many other reasons, but this is usually one the main ones.