Raymarine Autohelm ST 30 - Manual (Page 22)

Chapter 3: Calibration 19
Cal Dev
LOCK
COMPASS
LOCK
HEADING
AVERAGE
D1856-1
Please note...
If the deviation exceeds 10° the fluxgate compass should be resited.
Heading Alignment
Once the compass has been successfully linearised, you must match the
displayed heading to a known transit bearing.
1. From the compass deviation display, simply press or to
advance to heading alignment.
2. Press the or key to adjust the displayed heading to match the
known transit bearing.
Cal Offset
LOCK
COMPASS
LOCK
HEADING
AVERAGE
D1857-1
Quitting Manual Linearisation and Heading Alignment
To quit manual linearisation and/or heading alignment and return to normal
compass operation, simply press
and LOCK for 2 seconds.
Quitting without storing changes!
You can quit Manual Linearisation and Heading Alignment without storing
any adjustments by simply pressing
.