Specifications

Chapter 5: Customising the System
35
Compass deviation correction (SWING COMPASS)
The compass deviation correction option allows you to correct the
compass for deviating magentic fields. The procedure must be
performed as the first item in your initial sea trial, and is described in
detail in Chapter 7, Post Installation Procedures.
Deviation display (DEVIATION)
The deviation screen shows the current deviation value, calculated
from the correction procedure (Swing Compass). You cannot edit this
value.
Heading alignment (HDG ALIGN)
The heading alignment screen shows the current reported heading.
Note: You should always check the compass alignment after
performing a compass deviation correction (see Post Installation
Procedures). However, once the initial correction procedure has been
performed, you can make adjustments to the alignment as often as you
wish, without re-correcting your compass.
 Steer your vessel onto a known heading, and check the heading
displayed.
 If required, adjust the heading value to match the known value, using
the +1, -1, +10 and -10 keys.
Heading mode (HDG)
Select either magnetic or true heading mode. When heading data is
displayed in normal operation, the screen indicates whether true or
magnetic mode has been selected.
Bar selection (RUDD BAR)
Select the type of bar graph that is shown at the bottom of the SeaTalk
displays. The options are as follows:
RUDD BAR: This shows the rudder position, and is the default setting.
Note that a rudder reference transducer is required for accurate rudder
position information.
STEER BAR: The bar graph is used as follows: