Here is a video explaining all about India's First Indigenous Weapon Locating Radar - DRDO Swathi. History of Swathi Radar System. The Swathi Weapon Locating Radar (WLR) is a mobile artillery locating phased array radar developed by India. This counter-battery radar is designed to detect and track incoming artillery and rocket fire to determine the point of origin for Counter-battery fire. The WLR has been jointly developed by DRDO's Bangalore based laboratory, LRDE and the Government owned Bharat Electron
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