Hi all, I'm a firefighter from MA and my wife and I will be in Johnston for the week of 7/4. I'll be bringing my BCD396T with me. What I want to monitior is mostly Fire/EMS/Police. Is the info in the database for Polk county correct? Are the VHF/UHF freq's listed all I'll need, or are some agencies on a TRS? Will I be able to pick up Des Moines from Johnston? Any help would be much appreciated.