Weapon Locating Radars (WLR) are primarily used to detect and locate enemy Artillery units by tracking the trajectory of incoming rounds. They can also provide fire correction of friendly artillery units. WLRs usually can also track mortar shells and unguided rockets. Some WLRs also have limited missile tracking and Air Defence capabilities.
Right now Pakistan Army has AN/TPQ-36 Firefinder radar only!!!
AN/TPQ-36 Firefinder is a mobile radar system manufactured by Hughes Aircraft (later acquired by Raytheon). The system is a “weapon-locating radar”, designed to detect and track incoming artillery and rocket fire to determine the point of origin for counterbattery fire.
Pakistan Army Should now buy new and better equipment’s from US,EU countries or china and russia is not a bad option too.