Ok, first quick test done:
it works also on SH3! Great find guys!
Some comments and limitations:
1. The solution is related to make the first sensor the more long one (more distance sensible, currently the more deep). In this original mod and also on my version for Sh3 the sequence was just the inverse: first the short one, last the long one.
2.With this correction the mod continues to work on Ai/sonarman crew side correctly...but
3. At player (human) side, besides the fact that now we have again a really working hydro station as before (I mean, we have again ambience and propelers sound there all the time), it have the flaw of working all the time, for any distance (from max 30km from almost 0km), independentely of the hydro layer.
Conclusion: isnīt a perfect solution because the player will listen too much, independently of the hydro layer or uboat depth, but the AI/sonarman will works correctly, as the mod intention. Probably by game engine limitation, we will never have a perfect solution, but the mod is much better now!!(well, "never" canīt be used on SH3/4/5 mod community, we already fix a lot of unfixable things, no?)
I will test it a bit more and make a new update package soon!