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1. HOW TO INSTALL THE UNIT
5
Antenna mast and mounting base
To get the best performance from the antenna electronics and mechanics, the antenna must be
installed properly on a specially designed mast with suitable flange and rubber gasket. Below are
guidelines for installation of the mounting mast and mounting base.
• The mounting base should be parallel to the ship's waterline (tolerance: ±3°).
• Weld a ground bolt of stainless steel to the mast (figure below). Connect the ground wire from
the antenna unit to the ground bolt.
6×
φ
8
Fixing Hole
φ
60
(
φ
2.36
"
)
Cable Entry and Drain
110mm (4.33")
200 mm (7.87")
FELCOM 500
FELCOM 250
200 mm (7.87")
254 mm (10")
360 mm (14.17")
254 mm (10")
360 mm (14.17")
HOLE
DIA 12 mm (0.47")
[Mounting base]
[Antenna mast: Example]
Thickness:
Minimum 20 mm (0.79")
Weld a ground bolt
M10x40 (same
direction of the
cable gland of
the antenna unit)
Approx.
100 mm (4")
Approx.
100 mm (4")
Weld an elbow pipe
for the cable entrance.
The inner diameter
should be larger than
the outer diameter of
the cable.
Don't seal with putty.
[Antenna pole: Example]
Make a drain hole at the
base of the pole.
Thickness:
Minimum 10 mm (0.39")
[Mounting base]
Weld a ground bolt M6x40
φ
76.3
(
φ
3.00
"
)
φ
139.8
(
φ
5.50
"
)