Pechoras' PRV-11 radar with a 180 km range and 32,000 meter altitude E-band height finder. All target data generated is passed onto the SA-3 battalion's organic trailer mounted fire control LOW BLOW radar. Maximum acquisition range is 110km and tracking range of the I-band system is between 40-85 km depending on the target size, altitude and operational conditions. The radar can track six aircraft simultaneously and guide 1 or 2 missiles at once.