If a higher surface elevation is involved, as long as the tracking radar can lock on, even a SAM can take out a ground target. Other than the fact that the antenna array was limited on low end elevation, the biggest problem we had was sorting out a low level acft from ground clutter in the distance. Fortunately, the plane got closer and, unless the plane dropped ordnance, the trees and buildings didn't; we rarely tried locking onto stationary targets -- the moving targets were of much greater concern.