Manually adjusting an EV-1 heading sensor

If there is a difference between Heading and the reported COG (Course Over Ground), which is not attributable to tide and wind conditions, then you can adjust the EV-1 heading sensor’s settings to compensate.

The EV-1 settings can be accessed from the This display menu: Homescreen > Settings > This display > EVO set-up.

1. Compass offsetIf the difference is within plus or minus 10°, then select the Compass offset field and adjust until COG and heading values are the same, or
2. Align to GPSIf the difference is greater than plus or minus 10° you can align your heading sensor to the COG, reported by you GPS/GNSS, by selecting Align to GPS and following the onscreen instructions.