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3. INSTALLATION
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.
3.1 Antenna Unit Installation
Mounting considerations
When choosing a mounting location for the
antenna unit, keep in mind the following
points:
• Install the antenna unit on the hardtop,
radar arch or on a mast on an appropriate
platform. (For sailboats, a mounting bracket
is optionally available.) It should be placed
where there is a good all-round view with,
as far as possible, no part of the ship’s
superstructure or rigging intercepting the
scanning beam. Any obstruction will cause
shadow and blind sectors.
• In order to minimize the chance of picking
up electrical interference, avoid where
possible routing the antenna cable near
other electrical equipment onboard. Also,
avoid running the cable in parallel with
power cables.
• Separate the antenna unit from a magnetic
compass by the distances noted below to
prevent interference to the magnetic
compass:
Standard compass: 1.25 m
Steering compass: 0.85 m
Mounting on a platform
1. Remove mounting hardware at the bottom
of the antenna unit; four each of hex bolts
(M10X20), spring washers and flat
washers. Save mounting hardware to use
it to fix the antenna unit to the mounting
platform later on.
Flat washer
Spring washer
Hex bolt (M10 x 20)
Bow
Stern
Cable gland
Antenna unit, showing location of
mounting hardware
2. Construct a wood, steel or aluminum
platform on which to fix the antenna. (The
thickness of the platform depends on the
hex bolts to be used to fix the antenna to
the platform. See the illustration on the
next page for thickness.) Next, position
the antenna unit so the cable gland faces
toward boat’s stern.
Note 1: If corrosive material is used for
the platform, take appropriate
anticorrosive measures to prevent
corrosion.
Note 2: When drilling holes in the platform,
be sure they are parallel with the fore and
aft line.