The best way to troubleshoot reception problems with the SDS100/200 is to use the ANALYZE mode on the Main Menu. Run System Status. If you had the system selected, just press ENTER when it asks you to Input System name and it should show the system name under Select System. Press enter again if the correct system is highlighted.
It will should show system details and bar graphs for S, Q, and A. Q (quality) is most important, assuming you see a reading for S (signal strength). A indicates system activity. If you have weak S and Q then you are out of range and need to find a better location and/or antenna.
I find, in some directions, the Livingston signal does not extend much beyond the county line. I do get Genesee/Orleans in southern Monroe County with a SDS100 handheld at many locations. Livingston is marginal in the E River Rd area until almost to the county line.