SIG INT REPORT FOR Dec 18, 41

Heavy Volume of Radio transmissions detected at Tjilatjap (51,102).
Heavy Volume of Radio transmissions detected at Perth (49,147).
Radio transmissions detected at Kohima (61,39).
Radio transmissions detected at Palembang (48,91).
Radio transmissions detected at Singapore (50,84).
Radio transmissions detected at 84,59.