B&G Deckman - Manual (Page 57)

Chapter 3: Navigation
3.30
grid layers displays grid layers.
course line two lines will be displayed when this is turned
on: the solid line shows the course over ground
as read from the GPS; the dashed line is the
course through the water (i.e. heading plus
leeway, without the effects of current).
limits laylines lets you see the extent of variation in the mark
laylines for the last fifteen minutes. The
appearance and time interval can be changed as
per page 12.6
Competitors shows the positions of your competitors, if this
feature has been setup as described in Chapter
10.
Chart options
Though Deckman will work with a wide range of both raster and vector
charts, you are only able to select from one of the following columns:
C-MAP Version
C-Map vector charts
Maptech (BSB), PCX, Reml raster
charts Euronav Version
Livechart vector charts
ARCS raster charts
Maptech (BSB), PCX, Reml raster
charts
These two options work slightly differently in Deckman, so please make
sure you refer to the correct section below.
The Deckman display will normally switch between the different loaded
charts automatically depending on the scale and the extent to which you
are zoomed in. However, you may wish to override this automatic
switching and are able to specify Maptech charts to be used in
preference to others. Select menu>charts>use Maptech charts and
then check the Use Maptech charts in preference to others. To turn
this feature off again, repeat the above and clear the box. The Show
Maptech chart outlines function allows you to view the positions of the
loaded Maptech charts without actually using them.