Sounds like :
System is set wrong, look and see if it is set to P25, if it is set it to Motorola TypeII 800mhz and it will work fine. The system is P25 but it's 3600b and not 9600 so it can't be set to P25.
Or the system is encrypted but I highly doubt it. I'll be up that way next month so I'll find out. I'm heading to Nappanee to see some old friends..... Go Black Crunch!
BTW, for Indiana specific questions look in the Indiana section. This is a Uniden issue not an Indiana question.