Tracking Active Sonar Contacts

[stormrider_sp]

Originally Posted by Destex

Interesting. A submarine ESM mast? What accuracy are we talking about?

And regarding the era of CW, I don't suppose any western Submarine had something like that in the 80's (ESM accurate enough for an accurate TMA solution)?

Its difficult to know when everything is classified and most specifically, in all the secrecy surrounding sub based SIGINT, but one can also be very sure that LOTS of dollars were invested in those specific equipments, so I wouldnt be surprise to discover that it was possible to produce an accurate TMA with it, even in the early '70s.