Figure 5. Hydrophone setup. Left: Picture of the Naxys and sound trap hydrophone and the PC for the Naxys hydrophone. Right: Rigging of hydrophones. The hydrophones are deployed 8 m above the seafloor, and held down by a weight of about 30 kg. An underwater float is mounted on the rope 30 m above the hydrophone to keep the rope stretched out. A surface bouy marks its position at the surface.
