User's Manual

NACOS Platinum
ED 3100 G 140 / 04 (2011-11)
Operating Instructions
C-1 Voyage Planning
C VOYAGE PLANNING & MONITORING.fm
C-8
USEFUL INFORMATION
Browse Mode on ECDIS
If you want to edit the route graphically on the electronic chart, it is advisable to switch into the Browse
mode
1)
in order to be able to show any part of the sea where the route shall be located. In the other
display modes you are only able to plan a route with about 96 nautical miles distance to your own actual
position.
Alternatively all inputs for route planning can also be made in Text mode, i.e. directly by alphanumeric
inputs into the columns of the waypoint list (See chapter C - 1.1.3 on page C-9 for details).
General Note about Editing in the Waypoint List and the Route List
It is generally recommended to connect an alphanumerical keyboard (also called ASCII keyboard) to the
MFD computer installed at the planning workstation or any MFD frequently used for editing and chart
maintenance purposes.
In this case the system supports such well-known functions like copy and paste within the route editor;
Copy by Crtl+C and Paste by Ctrl+V. This can be applied on a whole line as well as on a data cell of
a table or parts of it.
Coordinate System for Position Input (WGS84)
The position data that are input on the system have to refer to a particular coordinate system. It is not
possible to choose between various coordinate systems or different geodetic datum.
Generally, the ECDIS programs (and also all connected RADAR / NACOS components) work internally
with the chart datum WGS 84. Before position data referring to a different chart datum are input on the
system, a conversion to WGS 84 must take place before input
2)
.
A necessary prerequisite for correct conversion is that the chart datum used on the source of the position
data (a paper chart, a waypoint list, etc.) is known to the operator!
Name of the Waypoint
At the left end of the header of the route window under “Find” you can enter any search text which is
contained in the waypoint names. This search text is compared to the start of the text entries contained
in the Name fields of the waypoints. With this function it is possible to have a fast access to the location
of a known waypoint (with given name) in long lists. If you then double click on the found waypoint line
or if you use the Go to Waypoint function, the chart center will jump to that position.
1)
Browse mode is only available in ECDIS mode, i.e. in RADAR mode graphical route planning is limited to the
display range selected for the PPI.
2)
The World Geodetic System 1984 is the actually used geodetic reference system for positioning. It is used world-
wide as a common base for position data, specifically in the GPS satellite system and in GPS receivers.
Also the position sensors connected to the system must send out their data based on the WGS 84 position datum.
A position receiver not sending WGS 84 based data to the NACOS is automatically treated as invalid and the alarm
"No WGS84 Position Datum in Use" will be given if you select it as position input.