I think the Aegis and Furuno radars have been explained to death on NHK this evening. Here is why:
MINAMIBOSO, Chiba — A Maritime Self-Defense Force (MSDF) destroyer collided with a fishing boat off the coast of Chiba early Tuesday, splitting the fishing boat in two and leaving a father and his son missing, officials said.
The 7,700-ton MSDF Atago destroyer collided with the Seitokumaru tuna trawler about 40 kilometers south-southwest of Nojimazaki Cape in Minamiboso shortly after 4 a.m. on Tuesday.
The hull of the 7.3-ton fishing boat was smashed in two, and two people on board the vessel, identified as 58-year-old Haruo Kichisei and his 23-year-old son Tetsuhiro, are missing.
News report here: