For: "DirtyOldMan"
I have no idea how or by whom your SDS100 was programmed
but something in the program settings has to be incorrect.
I'm in Gettysburg and have no problem receiving both fire
and EMS traffic at my location with a SDS100.
Things to check: All correct control channels programmed?
Service types selected for each TG?
Required talk groups entered?
Are you scanning in the "ID Scanning mode
or in the "ID Searching mode"?
Since you are receiving some EMS traffic, I would assume the
basic profile is correct such as "System Type, "Mode", etc.
If you would like some help, feel free to send me a private
message and I'll be happy to attempt to assist in getting your
radio problems corrected...