User's Manual

AIS Class B Transceiver
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5.2.2 Tracking Offset
This option allows you to track the progress of your own vessel in relation
to all other AIS equipped vessels within your VHF range.
Your vessel is shown as a boat shaped icon and will start to track away
from the centre of the screen in the direction of your heading.
As your vessel icon approaches the edge of the screen, the display will
refresh and scroll forward putting your vessel back to the centre again.
The default value for this option is “off”, the box will not be ticked. To
toggle this option on/off, highlight it and press  MENU or ►, and a tick
will appear in the box.
When set to “on” your vessel is no longer maintained at the centre of the
display, and will be allowed to track away.
5.2.3 Display Offset
This option allows you to toggle the display offset on/off. The default
value for this option is “off”, and the box will not be ticked.
To toggle this option, highlight it and press the  MENU or ►. Your
vessel is now offset to the lower half of the screen, allowing a greater
range to be displayed in front of you, Fig. 5.3.
Note This mode is limited to “COG-UP” or “HDG-UP” view points.
The display only has one position, and is generally only available as
Fig. 5.3 – Display Offset on