So the last scanner I owed was a Bearcat years ago when you had to buy a frequency book from Radio Shack (RIP) to program. I recently purchased a Uniden SDS100 to get back into it. Night and Day Difference obviously. I'm Fairly confident in my Computer skills and the Sentinal software, Set Scan Selection, Range, basic firmware updates, Etc.... Problem is, outside of Trunking discovery, I only pick up basic police and fire that the app on my phone picks up. I feel I'm Missing so much. I Live in Michigan with a 49441 zip Code and hear nothing outside of some County Calls...Is my Area un Scanable for the multiple city units in my county? And I don't mind doing the work if there is a thread out there to help folks like me.