On the TriConnex MotorTRBO wide area trunked system I've been hearing ambulance activity off of the Washington Co site.
Group 36 is the talkgroup
I've heard mention of 'medic 6', 'medic 8', as well as pickup/dropoff at MC Peters and MC Mon Valley.
I also heard some reference to ?VNA? or ?D&A?.
If this sounds like WashCo EMS traffic, then you probably arne't hearing it on the UHF link anymore because they are on the TRBO system.
If the agency I'm describing is not Washco EMS, then it is some other EMS serving Washington Co area.
Mike