Operation Manual

2.3 Scrolling through function displays
The IS20 Analog instruments may show several
functions, displayed by using the Up and Down keys.
3 arrows at the top of the LCD indicate which function
that is displayed. The arrow symbols are identified by
legends printed on the scale.
IS20 Rudder / IS20 Compass
The illustration shows legends used on the
IS20 Rudder/Compass instruments to indicate
active function as listed below:
LCD Scale/pointer
Symbol Function Compass Rudder
Heading
Magnetic heading
True heading
Heading
Rudder
angle
Heading lock
On course
Off course, steer port
Off course, steer
starboard
Heading
Cross track error in 1/1000 NM
Cross track error, steer
to starboard
Cross track error, steer
to starboard
Heading
Operation | 11