While in Columbia, SC on Saturday, I picked up some fire department activity on 173.5125 ($A70). The traffic was between DISPATCH and ENGINE 1 in reference to a medical call at Building 3800, Room 25. Dispatch first told Engine 1 that they were working on an ETA for EMS then later advised them "EMS is on the property." Since Fort Jackson public safety is on the US Army TRS, I'm guessing this was McEntire JNGB FD dispatch but I can't find any listings for it anywhere. Has anyone in the Columbia area heard it before?