TMQ Bosun-AP9, Operation And Installation Manual

Page: 12 / 63

TMQ Bosun - AP9 Rev1 (935) Page 12 16/06/2003
GPS Mode
For use when interfaced to a GPS generating NMEA 0183 data output.
While in auto mode this allows the autopilot to be directed by the GPS,
enabling automatic heading changes and eliminating the effects of wind
and tide.
The digital display indicates the
course-to-steer , which will be the bearing
between the origin and destination waypoints, plus a factor to correct for
the current
cross-track-error (XTE) .
Engaging GPS Mode
When in any mode, press the "GPS" key. A beep will sound and the
adjacent yellow light will be turned on.
The vessel will begin turning from its current course to the course
requested by the
GPS unit , at a maximum rate of 10 degrees per
second. Rate of turn can be altered by setting Rate of Turn knob to
required position (refer to Rate of Turn).
If no GPS data is being received by the Bosun, the autopilot will
lock onto the course of the vessel at the time that
GPS Mode was
engaged, and the No GPS Data alarm shall sound.
Disengaging GPS Mode
•
Pressing the "Auto" key will set the Bosun to Auto Mode .
•
Pressing the "Standby" key will return the pilot to Standby .