6-7 Setup > Comms
Use this feature when the autopilot is connected to other Northstar instruments through NavBus or any compatible NMEA instrument.
NMEA mode
Select NMEA port mode.
Input – NMEA port can receive NMEA data
Slow – NMEA port outputs heading and rudder angle once per second
Fast – NMEA port outputs heading data ten times per second
NavBus group
Use this when a group of Northstar instruments are connected together using NavBus, to specify a group of instruments for backlighting, if required. Then, if the backlight setting on one instrument in the group is adjusted, the other instruments change automatically. Otherwise, select 0.
6-8 Setup > Calibrate
The calibrate wizard screens are used during the initial autopilot installation stage or if any previously installed autopilot transducers have changed or moved.
It is vital to the performance of the autopilot that the transducers are installed in the best location and carefully calibrated.
Compass
Use this calibration wizard to calibrate the compass.
Follow the
•Slowly turn boat 2.5 times, observing the turn rate indicator
•Align heading – press 
and dial in the current heading
•Accept calibration
•Calibration complete
•Stand clear of the rudder and linkages so the autopilot can test the limits.
•Testing limits – press 
at any time to abort the calibration
•Accept calibration
•Calibration complete
Align heading
Use to align the compass to the actual boat heading. If a compass calibration has recently been performed, it is not necessary to align the heading again.
Use the manual helm to sail a straight course and ensure the boat heading does not change during this procedure. Use an accurate reference compass or external GPS to find the actual boat heading. If you are using an external GPS, sail as fast as convenient to ensure the heading is accurate.
Enter the actual course heading.
Minimum = 0°; maximum = 359° (degrees)
Rudder
Use this calibration wizard to calibrate the rudder.
Follow the
•Center the rudder
•Turn rudder to Maximum Port
•Turn rudder to Maximum Starboard
•Set angle – press 
and dial in the current rudder angle
•Center the rudder
Center Rudder
Use to set the rudder center position. If a rudder calibration has recently been performed, it is not necessary to set the rudder centre position again. Ensure the rudder is in the center position and that there is no
Select OK and press 
when the rudder is centered.
Reference Manual | 29 |
|
