The Snow Drift warning and acquisition radar provides target height, bearing and range data. It has a detection range of 85 km against high-flying targets, 35 km against targets at an altitude of 100 meters, and 23 km against targets flying nap-of-the-earth (NOE). The radar's tracking range extending from 70 km for high-flying targets to 20 km for NOE targets. Tracking of helicopters hovering at 30 m can be made as far as 10 km. Once a target is identified it is turned over to an TELAR via a data link for tracking and attack. Snow Drift receives early warning from brigade-level surveillance radars such as the Spoon Rest.