Adjusting the Fine Heading Alignment
If you do not have a GPS source present on the Garmin BlueNet™ network or Garmin® Marine Network, the Auto Heading Alignment option is not available as part of menu-based calibration. You must adjust the Fine Heading Alignment instead.
You can adjust the Fine Heading Alignment in conjunction with Auto Heading Alignment to fine-tune the heading output (optional).
- Start the Spy™ heading sensor calibration, and skip directly to Fine Heading Alignment.
- Using a landmark or a known good compass, determine the heading of your boat.
- Adjust the heading until it matches your measurement.
- Select Done.