Navman Datahelm 8120 Installation And Operation Manual page 21

3-2-1 Chart modes
The Chart has two modes:
Centre on boat mode
To switch to centre on boat mode in the chart
window, press
ESC
of the chart. As the boat moves through the
water, the chart automatically scrolls to keep
the boat in the centre of the chart. The cursor
(see below) is turned off.
Cursor mode
The keys and
To switch to cursor mode in the chart window,
hold down a cursor key. The cursor
and moves away from the boat:
Press the key which points in the direction
that the cursor will move, for example press
to move the cursor down.
Press midway between two of the cursor
keys to make the cursor move diagonally.
Hold a cursor key down to make the cursor
move continuously across the window.
In Cursor mode:
The distance ( DST) and bearing ( BRG) of
the cursor from the boat are displayed at
the bottom corner of the window.
The chart does not scroll as the boat
moves.
If the cursor reaches the edge of the
window, the chart will scroll.
For example, hold down
cursor to the right side of the window and
the chart will scroll to the left.
3-2-2 Latitude and longitude
Latitude and longitude can be displayed in
the data header. The window is degrees and
minutes to three decimal places, about 2 m
(6 ft) resolution. Normally the position is the
boat's position, and the latitude and longitude
has a boat symbol to show this:
36° 29.637' N or S
175° 09.165' E or W Longitude
If the cursor has been moved in the last ten
seconds, then the position is the cursor's
position, and the latitude and longitude has a
cursor symbol to show this:
21
. The boat is at the centre
are called cursor keys.
appears
to move the
Latitude
36° 29.841' N or S
CAUTION
!
175° 09.012' E or W Longitude
WARNING
!
When reading the boat position, make
DANGER
sure the position is not the cursor position.
CAUTION
3-2-3 Chart scale
Press to zoom in and display a smaller area
of the chart in more detail. Press
out and display a bigger area in less detail.
The chart scale is displayed at the top left of
the chart:
3-2-4 Chart symbols and information
The chart shows many kinds of symbols,
such as waypoints, ports, marinas, buoys
and beacons. If necessary, press or
to choose a chart scale where the symbol is
displayed.
To see stored information about a symbol:
1 Either move the cursor to the symbol on
the chart and wait two seconds
or use Find to move the cursor to a symbol
for a port or service (see section 3-2-5).
2 A window appears at the bottom of the
display with some information about the
symbol.
3 To see more detail about a symbol or a list
of associated items for the symbol, press
:
ENTER
i Select an item to display. If there are
more items than will fit on the window,
press or to scroll up or down.
Select a camera icon to display a photo
of the item. If the photo is too big to fit
on the window, press , ,
scroll the photo.
Select Tide Station to display a tide
chart for the position (see section 13).
ii Select other items or press
return to the chart.
To see stored information about nearby
symbols press
MENU
Then follow step 3 above.
8120 Installation and Operation Manual
Latitude
to zoom
or
or
to
ESC
and select Chart info.
to