6.1 Radar information or other navigational information
may be added to the ECDIS display. However, it should not degrade
the SENC information, and should be clearly distinguishable from the
SENC information.
6.2 ECDIS and added navigational information should
use a common reference system. If this is not the case, an indication
should be provided.
6.3.1 Transferred radar information may contain
both the radar image and ARPA information.
6.3.2 If the radar image is added to the ECDIS
display, the chart and the radar image should match in scale and in
orientation.
6.3.3 The radar image and the position from the
position sensor should both be adjusted automatically for antenna
offset from the conning position.
6.3.4 It should be possible to adjust the displayed
position of the ship manually so that the radar image matches the
SENC display.
6.3.5 It should be possible to remove the radar
information by single operator action.