Raymarine RC400 Owner's Handbook Manual page 55

Chapter 4: Setting Up
➤
To enable or disable SD-GPS mode.
1. Using the trackpad left/right highlight SD-GPS in the function bar.
2. Press ENTER to toggle between SD-GPS ENABLE and SD-GPS OFF.
3. Press CLEAR twice to return to the normal display.
➤
To reset SD-GPS.
1. Using the trackpad left/right highlight RESET GPS in the function bar
2. Press CLEAR twice to return to the normal display.
• Select ON to allow the unit to use SD corrections if available.
• Select OFF to force the unit to calculate a normal GPS fix with no
satellite GPS corrections.
and press ENTER.
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