10. CUSTOMIZING YOUR UNIT
10-4
own ship icon. If you want to activate the correction, select [GPS Calibration] to [On].
[Position Calibration by Value]: Set the adjustment value, using the Latitude/Longitude
selection pad. If you want to activate the correction, select [GPS Calibration] to [On].
[Position Filter]: The GPS position and speed information may change randomly, de-
pending on the DOP, receiving conditions, and other factors. You can reduce this ran-
dom variation by setting the [Position Filter] to [On]. However, the response to the
GPS position and speed changes is slower.
[Navigation Setup]: Navigation setup lets you customize the map display.
[Coordinate System]: Select the coordinate display method, among [ddd mm.mmm],
[ddd mm.mmmm] and [ddd mm ss].
[Rotation Threshold]: Set the amount of course change (in degrees) that initiates re-
drawing of the course in the [Course Up] orientation mode.
[Compass]: Select the type of compass used and set magnetic variation.
[Bearings]: Select [True] for gyrocompass, [Mag] for magnetic compass.
[Variation]: The location of the magnetic north pole is different from the geographical
north pole. This causes a difference between the true and magnetic north location.
This difference is called magnetic variation, and varies with respect to the observation
point on earth. Your unit is preprogrammed with all the earth's magnetic variations.
However, you may wish to enter variation manually, referring to a nautical chart, to re-
fine accuracy. Set to [Auto] to get correct variation when there is no position data.
To Next Page
Loading...
