New owner of 396xt and used FreeScan to upload frequencies for Polk County after importing from Radio Reference database. I am receiving transmissions, but there are issues. The scanner will pick up certain "groups" for a time with no other dispatch areas being heard. For instance I am in Bartow and right now getting only NW dispatch and nothing else. Other times has been only TAC and still other times only SW dispatch. Do I have control channel problems? I never hear Bartow PD, any Fire/EMS, etc. What am I missing? Thanks for helping a newbie.