Microphone - Furuno VR-3000 Installation Manual

1.6 Microphone

1.6.1 Bridge microphone VR-5011
The bridge microphone comes with a flush mount plate. Fix
the plate with six 4x16 self-tapping screws. The microphone
covers an area about 10 m in diameter with the height of 2 m.
Six microphones can cover a maximum 60 m diameter
bridge area (including wings).
2 m
About 10 m
Coverage of microphone
Microphone mounting considerations, mounting dimensions
The following consideration must be taken into account to decide the location of the
microphone.
•
Provide clearance around it (normally overhead in the bridge)
•
The microphone is not waterproof, therefore do not install it on a wing.
•
Locate away from noise sources, such as fans, motors, and loudspeakers (1 m or more from
air duct)
•
Mount on a non-vibrating surface to keep noise to a minimum.
•
Secure the cable to keep noise to a minimum. If the cable runs on an overhead without
securing it, the cable will pick up noise.
•
Observe the compass safe distances shown on page i to prevent interference to a magnetic
compass.
•
Microphones are mounted in the place(s) to pick up voices at the locations shown below.
(Complying with IEC 61996, 4.6.5.)
1) Centerline conning
2) Bridge wings (if steering gear is installed)
3) Main radar
4) Chart table
5) Helmsstand
6) Radio room
8
Example of microphone at
radar station