On several occasions, I have heard transmission on talkgroup 1242 on the Wmbg/JCC/York System. Today I heard "York County Unit 50" call someone on what he described as the 911 Channel (talkgroup 1242). The radio electronic serial number was 37175, which is within the group assigned to York County Fire (37xxx). The answering radio was number 106213. This number is within the group of numbers assigned to York County Dispatch. Assuming talkgroup 1242 is the 911 channel for York County, does anyone have any idea as to what they do on that talkgroup? Is it a common talkgroup for Police and Fire?