3.3 There should be a display which gives a visual indication for at least 3 s of the incoming signals and their approximate direction.
4 INSTALLATION
4.1 The microphones should be installed in such a way that they are as far from noise sources in the ship as is reasonably practicable and wind induced noise and mechanical vibrations are reasonably reduced.
4.2 The display should be installed so that it is visible at least from the conning position.
4.3 The loudspeaker(s) should be installed so that incoming sound signals are audible at all positions inside the bridge.
