System Description
Above Deck Equipment (ADE) - Antenna Unit
OceanTRx
TM
4-500 Installation and Operations Manual
2-3
2.2
Above Deck Equipment (ADE) - Antenna Unit
The ADE consists of the antenna system, completely covered and protected by a Radome.
Maintenance access is provided by a service hatch in the Radome base.
The antenna system supports three rotary axes:
Azimuth axis – provides continuous unlimited 360
rotation.
Tilt axis – provides ±70
of horizontal rotation.
Elevation axis – provides 150
of vertical rotation (-30
to +120
).
These three axes and their range of movement allow continuous focus on the satellite
under all specified sea conditions without exceeding the system’s mechanical limits or
encountering geometrical keyholes.
In addition to the above axes, an additional Polarization Skew axis provides 230
of
rotation (±115
).
NOTE:
The
marker
provides a reference to the optimal installation position
– it should be (as much as
possible) in line
with the ship’s vertical axis.
Figure
2-2: Above Deck Equipment (ADE)
Radome
Azimuth Axis
Radome Base
Hatch in
Radome Base
Tilt axis
Elevation axis
Marker location
