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Installing Above Deck Unit (ADU)
5.3 Designing Mast (Example Only)
The installation mast must be robust enough to prevent ex, vibration, and sway when an external force is
exerted on the mast with antenna and radome. Refer to the following mast drawings for more details.
WARNING
The recommended thickness of the mast plate is 10 mm. The minimum thickness of the mast
plate must be 5 mm. If the thickness of the mast plate is different from the recommended size,
choose right sized bolts for mounting the antenna on the mast according to the table below. The
quality of bolts must be equal to or better than supplied bolts by Intellian (Recommend using the
same brand bolt).
Mast Plate Thickness
Recommended Bolt Size
5 ~ 10 mm (Recommended) M8 x 40L (Supplied)
8 ~ 15 mm M8 x 45L
13 ~ 20 mm M8 x 50L
18 ~ 25 mm M8 x 55L
23 ~ 30 mm M8 x 60L
To use the supplied bolts (M8 x 40L) for mounting the antenna on a mast, Intellian recommends designing
the mast plate thickness is 10 mm.
A
If the bolt length is longer than M8 x 40L, the bolt thread stick-out protruding beyond the nut inside the
radome can damage parts of the antenna.
B
If the bolt length is shorter than M8 x 40L, the supplied antenna-mast mounting bolts can be too short to
mount the antenna on the mast securely.
NOTE
This is a general example of routing cables on the mast. The routing method is may differ
depending on the ship's environment.
When the bolt size is
M8 x 40L (Supplied)
When the bolt length is
longer than M8 x 40L
When the bolt length is
shorter than M8 x 40L
Mast Plate
Thickness: 10 mm
Bolt
A B
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