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System Conguration | GN70MX610/MX612 Operator and Installation Manual
HS80A/MX575D D/GPS Compass Antenna Oset
The difference between the compass lubber line and the boat’s center line should be
compensated for. This can be done in two ways, namely: physically rotating the compass
antenna so the heading is corrected or by entering an offset value using the procedure
below. This offset value is saved in the antenna unit.
Entering heading oset procedure:
1. Find the bearing from the boat position to a visible object. Use a chart or a chart plotter
2. Steer the boat so that the center line of the boat is aligned with the bearing line pointing
towards the object
3. Activate the device configuration dialog as shown below, by pressing the MENU key
4. Scroll to Tools and Settings, press the ENT key
5. Scroll to NETWORK icon, press the ENT key
6. Scroll to Device list, press the ENT key
7. Scroll to Compass, press the ENT key
8. Highlight the GPS compass unit being used, press the ENT key
9. The highlight will be in Configure button, press the ENT key
10. Highlight the Offset field, press the ENT key. The virtual keypad will show
11. Highlight (+) or (-), press the ENT key
12. Scroll to Enter the offset, press the ENT key
13. Enter the offset value using the virtual keypad
14. Highlight OK, press the ENT key
15. Highlight the Close button, then press the ENT key
16. Press the HDG hot key to exit.
¼ Note: Make sure that both the compass heading and the bearing to the object have the same
unit (Magnetic or True).
¼ Note: Heading offset is only possible when the GPS compass is connected via N2K.
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