A Better Japanese Military in World War II

Initially the USN submarine doctrine pushed attacks made on hydrophone data. These were abysmally ineffective, even when the torpedoes used (primarily by the S-boats) were decent enough. The USN moved away from these rather rapidly. In WWII a hydrophone could give you bearing, some information of number of ships, and based on the proprellor(s) speed and engine noises the type of ship. Range was relatively short, and you still had to come to periscope depth to get accurate information for an attack. Submarine vs submarine attacks occurred when one was submerged and the other on the surface...
 
Abe, no...and even if they had would not have been useful...passive listening needs much better signal processing to be useful, which nobody had in WWII
 
Don't most of the WWII kit rely far to much on operator skill as they use headphones rather than visual displays like modern systems?
 
Don't most of the WWII kit rely far to much on operator skill as they use headphones rather than visual displays like modern systems?

Operator skill and training, you got headphones and a simple display for things like radar. MFDs and the like are something they could only dream of. Basically Abe what you're asking for would require magic. Imperial Japan did as well as it could with the resources it had available within the constraints of reality (and its society).

Unless you completely re-write Japan from some time after Perry came along and went "Hey open up or we're gonna 'open' ya another way." whilst looking very rapey, then you're not going to change much. And even then, that might not be enough.
 
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