Description of the radar set, tactical-technical characteristics
Figure 1: REL-4
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The REL-4 is a long-range 3-D radar that operates in the L-Band. This mechanically rotating and electronically scanning in elevation system is used for target guidance and air surveillance. It uses an active phased array with liquid cooled T/R modules.
This radar was first shown on display at the Zhuhai Airshow 2016. It has already been exported to several countries.