[Observer]

To be exact:

[Hydrophone]
Detection time=0.75 ;[s]
Sensitivity=0.04 ;(0..1)
Height factor=0 ;[m]
Waves factor=1.0 ;[>=0]
Speed factor=18 ;[kt]
Noise factor=0.25 ;[>=0]

but this is also used in conjunction with the changes to the AI_Sensors.dat.