Setup Procedure Perform Compass Offset
OceanTRx
TM
4-500 Installation and Operations Manual 7-11
7.4 Perform Compass Offset
The vessels compass and the OceanTRx™4-500 system must be aligned according to the
vessel's bow-to-stern axis.
Ideally, the OceanTRx™4-500 system is installed so the 'marker' is aligned with the bow-
to-stern axis of the ship (and with the ship's compass). However, this ideal installation is
not always possible, due to physical limitations of the OceanTRx™4-500 installation site.
Therefore, the Offset between the desired alignment of the system and the actual
installation is estimated and the required compass offset is configured – aligning the
compass with the antenna.
The following figure shows the ideal system installation, where the system marker is
parallel to the ship's bow-to-stern axis.
Figure 7-11: Ideal System Installation – No Offset
OceanTRx™ axis
(Marker direction)
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