Furuno 2167DS-BB Manuel d'utilisateur télécharger pdf (Page 9)

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1. MOUNTING

1.1 Antenna Unit

Mounting considerations

The antenna unit is generally installed either on top of the wheelhouse, on the radar mast, or on

a suitable platform. The mounting location should afford a good all-round view and satisfy the

siting and mounting considerations mentioned below.

Siting

• No funnel, mast or derrick should be within the vertical beamwidth of the antenna unit in the bow

direction, especially zero degrees ±5°, to prevent blind sectors and false echoes on the radar

picture.

• Deposits and fumes from a funnel or other exhaust vent can adversely affect the aerial perfor-

mance and hot gases may deform the radiator. The antenna unit must not be mounted where

the temperature is more than 70°C.

• Locate a direction finder antenna clear of the antenna unit to prevent interference to the direc-

tion finder. A separation of more than two meters is recommended.

• Choose a location where reflections from the radar reflector will not be received by the radar

antenna.

• The "standard" antenna unit orientation has the cable glands directed toward the bow.

• Leave sufficient space around the unit for maintenance and servicing. See the antenna unit out-

line drawing for recommended maintenance space.

Mounting

• Use rope and crane to hoist the antenna unit to the mounting location. Lifting fixtures are pro-

vided on the antenna chassis to which to fasten rope.

• Mount the unit parallel to the waterline.

• A hole is required in the mounting platform for the antenna cable.

• An appropriate platform should be constructed at the mounting location to facilitate installation

and maintenance work.

• Connect ground wire between antenna terminal on antenna chassis and ground point.

• If the mounting platform is made of steel paint it to prevent electrolytic corrosion. DO NOT paint

the antenna radiator.

NOTICE

Do not apply paint, anti-corrosive sealant

or contact spray to coating or plastic

parts of the equipment.

Those items contain organic solvents that

can damage coating and plastic parts,

especially plastic connectors.

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Furuno 2167DS-BB Manuel d'utilisateur Page 9