Japan's wartime radar programme did more than direct fighters. Radar stations could watch Allied bombers during mine-laying missions and identify where the weapons fell. That information allowed clearance teams to find the new danger and reopen harbour approaches more quickly. An imperfect radar system could still deliver useful defensive information.
Notable Point ยท 2:59:09-2:59:27
Radar warned Japan where aerial mines fell
Japanese radar watched Allied mine-laying aircraft so clearance teams could locate new minefields and reopen harbour approaches.