I believe it was 709 , I’ve been Doing Talk group (ID Searching) for a few months and mostly Random City Talk / testing With very little Public safety talking. Fire will use it on special events
During peak PD hours, I’ll get The Occasional Encrypted PD TG that will briefly pause. Using the (Analyze) feature on The SDS 100 / 200 I can see activity on The System.
Most likely it’s car to car stuff, as I don’t hear it on the PD analog Ch 5 anymore.