SAM Electronics GmbH NG3028X25KW Manual Do Utilizador

ED 3038 G 232 / 01 (2002-06)

 b_r1_e21.fm / 21.06.02

Click on the MAP button; then, behind SYMBOLS, select the
display type:
PAPER CHART symbols correspond to the symbols used on
paper charts.
The  OUTLINE symbols derived from the PAPER CHART
symbols do not have any filled-in areas.
SIMPLIFIED symbols are optimised for the electronic display
of maps, and comply with the ECDIS rules, but they are
displayed transparently so that radar echoes situated under-
neath them remain visible.

☞

During radar observation, the OUTLINE symbols should
be used, because they do not hide too much of the radar
echoes.

If the majority of the symbols of the Electronic Chart are displaced relative to their radar echoes of these
targets, it can be assumed that the position transferred from the selected position sensor is incorrect.

 1)

 

If no position data having greater accuracy are available, then the Electronic Chart together with the User
Chart Objects and the map can be shifted in such a way that symbols and the associated echoes coin-
cide. This correction is described on 

☞

Rotation of the entire video relative to the map indicates that the heading value is incorrect. The
cause of this might be a faulty compass, or else non-synchronous transfer of the course (for synchro-
nisation of the course transfer, see 

). However, errors of this kind also occur also if the

compass does not perform a speed error correction or no dynamic correction; these faults should
then be corrected in the compass system, if possible.

1)  

If symbols of the User Chart objects or the symbols of the map are displaced relative to their radar echoes of these targets, it must be
considered whether the positions of these symbols have been entered incorrectly.