PA state police operated a GHS2589 stationary radar device tested at station R-8 within 30 days of citation. This offence was on a Sunday afternoon. Officer states road is a 40 MPH, sign says 45, and you can safely go up to 60 without causing undo harm to yourself or others. Traveling westbound, state trooper from a concealed and unknown location used his radar device completely hidden from view. From out of nowhere he came out and made the stop approx 1/2 mile from the speed trap. Local magistrate office is in Oley PA.