User's Manual

Atlas IP Terminal Installation Manual
Page 15 of 34
2.1.5 Antenna Mast
The ADU should be located at least 3-meter away from the ship’s mast having a diameter of
less than 15cm. If the antenna mast is available on the vessel and it is free of any shock or
vibration, its physical size shall support the weight and size of the ADU.
An example of the antenna mast is illustrated as below
and the recommendations of the antenna masts :
 The mast should provide the internal hole for the installation of the coaxial cable.
 The flange (known as the top plate) of the mast shall meet the dimensions of the
ADU’s mounting base, where there are 6 holes.
 The rubber gasket is required to be inserted between the ADU mounting base and
the flange .
A :
Use M6x20 Hex Head Screw
bolts (6x) into the threaded holes
of ADU Mounting Base for
mounting the ADU.