Raymarine Autohelm ST 30 - Manual (Page 24)

Chapter 3: Calibration 21
2. Press and momentarily to enter extended calibration.
Cal
LOCK
COMPASS
LOCK
HEADING
AVERAGE
D1851-1
Calibration ON/OFF
This feature is used to restrict access to the user calibration menu
to prevent accidental adjustment of the linearisation and heading align-
ment features.
Calibration is toggled on and off by pressing the or key.
Cal
LOCK
COMPASS
LOCK
HEADING
AVERAGE
D1851-1
Cal
LOCK
COMPASS
LOCK
HEADING
AVERAGE
D1851-1
Press LOCK to advance to “Boat Show” mode or exit extended calibration
as described on page 23.