FB 250+ Installation Manual
Page 15 of 33
In case of the existing mast’s flange in a vessel or ship does not fit the ADU’s mounting
base’s holes, a mechanical adaptation flange/plate is to be designed and custom-made,
which acts as an interface between the existing mast and the ADU.
2.1.6 Installing Antenna Unit
The antenna unit is carefully unpacked and checked for any damage.
For FB 250+ Antenna Unit,
The procedure of the installing the antenna unit is as follow:
Attach the coaxial cable to the RF connector of the antenna unit’s bottom.
Position the antenna unit to the mounting location.
Ensure the connection of the coaxial cable and wrap it with self-adhesive tape for water-
proofing.
Put the antenna unit on the mounting flange and use 6 sets of M6 x 20 Hex head screw
bolts with flat washers into the threaded holes of ADU mounting base via the mounting
flange’s holes.
Cut-hole Dimension
for
Clearance holes for M6 ( Recommended >
φ
6.5mm)
Custom-made
mechanical adaptation
flange
