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Recording functions · 385
How to save Positions
User can record various positions in the voyage log. They include:
· direct sensor position (in example below such are DGPS and GLL+ZDA)
· positions calculated by the system (in example below such are Kalman filter and Dead reckoning)
· user observations (in example below such are Visual, Astronomical and MFDF. MFDF is Medium Frequency
Direction Finder)
An example of saving direct position or position calculated by the system
An example of saving position based on user observation
First you should locate the position of your observation on the ECDIS chart. Use for example the two separate EBL
and VRM available in Nav Tools.
Then open Record sheet of Sensors. Select appropriate method from device list box. Move the cursor over the
desired location on the ECDIS screen and press SELECT pushbutton. The latitude/longitude position of the cursor
is then copied to Lat and Lon fields. If you are satisfied then press Record to save the position observation into the
Voyage Log. If you wish you can also enter manually the Lat and Lon values.