User's Manual

Table Of Contents
Synapsis Radar
with Nautoscan NX Pedestal
Operator Manual
Edition Sep 2015
2-201
4265.DOC020102
2.7.10 Senc Menu
SENC stands for System Electronic Navigational Chart.
This function can only be realized via ECDIS in connection with the CMAP
Chart Data (vector charts).
ECDIS procedure
ECDIS allows the operator to send objects (e.g. Depth contour or Buoys) to
selected Radars and displays them on the PPI. The interface between Radar
and ECDIS is serial and designed according to NMEA 0183.
Radar procedure
The Radar Function SENC allows the user to adjust (Radar Fix) the object
positions of objects transferred between ECDIS and Radar.
Transferred lines and objects can be individually switched on and off by the
Radar user.
Cursor
The Radar cursor appears in the ECDIS chart as a second cursor in
GREEN color.
The ECDIS cursor appears on the Radar PPI as a second cursor in
ORANGE color.
A route planned on an ECDIS is based on the electronic
chart vector format being used on the ECDIS PC. This chart
presentation is based on a MERCATOR projection.
If a route is created on an ECDIS and send to the Radar,
the route will be displayed on the Radar PPI.
If the distance between two waypoints is too long the track
leg should be drawn as a Great Circle.
As the route on the Radar is displayed as a Rhumb line it
deviates from the Great Circle presentation.
To keep the deviation as small as possible the distance
between two waypoints should be maximum 40 nautical
miles to approximate it to a series of Rhumb Line tracks.