The Observation Without Limits (O.W.L.) Precision Tracker provides technically advanced and cost-effective capabilities for verifying and tracking drones as part of solutions for basic situational awareness as well as end-to-end counter-UAS solutions being used today by critical infrastructure and government organizations. It works as part of an integrated drone detection solution in which O.W.L.'s 3D surveillance radars detect and track drones at long ranges, then Precision Tracker is guided by the 3D surveillance radar to lock onto the air target to confirm that it is indeed a drone. It can track virtually any drone at long ranges, even those hovering in place.