Operation Manual

48 User Manual
4.5 NAVIGATION
To handle the functions related to navigation:
[MENU] + "SETUP" + [ENTER] + "NAVIGATION" + [ENTER]
Coordinate System : The possible choices are ddd mm ss (degrees, minutes and seconds), ddd
mm.mm (degrees, minutes and hundred of minutes), ddd mm.mmm (degrees,
minutes and thousands of minutes), TD (TD function allows converting GPS
coordinates to Loran-C coordinates and vice versa, see TD).
Fix Datum : Sets the datum reference used by the GPS receiver connected to (or integrated
in) the chart plotter so that the chart plotter converts the position received from
the GPS to the Map Datum currently selected in the menu in order to match the
position from the GPS with the position on the charts. You must know what
datum reference is used by the GPS and set it in the Fix Datum option.
Map Datum : Allows selecting any Geodetic Datum reference from the over 100 available on
the chart plotter. Map Datum selection switches to the selected reference datum
applying the datum offsets stored with the charts.
Fix Correction :Turns On/Off the Correction from the positioning system. If the new Correction
is calculated, but the Correction is not enabled, the ship's position is not
changed.
Compute Correction :Corrects fixes from the positioning instrument. By placing the cursor on the
ship's real position and selecting this option, the error is calculated and
internally memorized for appropriate correction, but not applied.
Correction Offset : Allows manual correction of fix position. The correction is entered as X, Y offset
in minutes and thousand of minutes +/- 9.999.
4.6 COMPASS
To set the reference heading information such as bearing angles (True or Mag-
netic), the Magnetic Variation source and to enter Compass Calibration values.
[MENU] + "SETUP" + [ENTER] + "COMPASS" + [ENTER]
Bearings :Selects either degrees magnetic or degrees true. If magnetic readings are
selected the variation is computed automatically for every zone as soon as the
chart is displayed.
Variation : It is possible to calculate the Magnetic Variation in an Automatic or Manual
mode, by inserting the step for calculation of Magnetic Variation.
Calibration : The variation table is used to match magnetic value readout on the chart plotter
comparable with the value given by the compass of the boat. In other words,
since the compass of the boat must be compensated (due to the iron masses,
...), we use the same values given by the chart plotter. This means that, for
example, if the BRG to the next Waypoint readout in the chart plotter display
is "X" Mag degree, if you steer the boat reading "X" Mag degree from the
compass, you are driving well toward the next Waypoint.
4.7 INPUT/OUTPUT SETUP
WARNING
After a software upgrade the RAM is cleared and then the chart plotter starts
with the default settings. Then you have to go into the Input/Output menu and
set again the proper input format.
GPS Connection CM 169CS/CM PRO
Connects the GPS to the GPS Port (serial Port 3). To choose your preferred
setting follow the procedure:
[MENU] + "SETUP" + [ENTER] + "Input/Output" + [ENTER] + "Port 3 In-
put" + [ENTER] + "NMEA-4800-N81-N" + [ENTER]
GPS Setup Menu
To set your desired configuration for the connected GPS.
Internal GPS :CM 169CSi/CM iPRO Enables or disables the Internal GPS.
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