Why radar alone could not fix Japanese carrier defence

Does the book discuss the Imperial Japanese Navy's radar suite?

Yes. It treats late radar, weak fighter radios, and the lack of integrated combat information as a major carrier-defence weakness.

The book identifies the late introduction and ineffective use of radar as a major Imperial Japanese Navy weakness. No Japanese carrier began the Pacific War with radar, so defence depended on small standing fighter patrols and whatever warning could be obtained in time to scramble the rest. Poor airborne radios then made it difficult to control fighters already in the air. Even after Shokaku received radar in 1942, the fleet did not integrate incoming information in the manner of a U.S. Navy combat information center. Detection, communications, fighter direction, and information organization had to work as one system; installing a radar set by itself was not enough.