Frederick County's TRS is a bit spotty in regards to reception in several places within the county. Once outside the county, specifically south in Montgomery County, I've experienced some severe reception issues with all of my scanners. Ever since they added the additional frequencies, its been like that and that's been since the late 90's I think or possibly 2000/2001. That's my personal experience with the system, my radios, and antennas--both mobile and base.