primary surveillance radar, primary radar
conventional radar that illuminates a large portion of space with an electromagnetic wave and receives back the reflected waves from targets within that space, surveillance radar system which uses reflected radio signals, radar, mis kombib elektromagnetlainega suurt osa õhuruumist ja võtab peegeldunud lained tagasi selle ruumi sihtmärkidelt, seireradarsüsteem, mis kasutab peegeldunud raadiosignaale
