TMQ AP55 Display Head, Operation And Installation

Page: 13 / 33

TMQ AP55 Display Head Page 13 Ver1.0 08/12/2005
GPS Mode
For use when interfaced to a GPS or plotting system generating NMEA
0183 data output in the correct sentence format. GPS mode 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:
Press the MODE button and, while the MODE button is pressed,
press the AUTO button.
A beep will sound and the GPS and AUTO LED will be
illuminated.
The autopilot will lock on to course to steer as requested by the
GPS.
The course-to-steer is shown on the display.
The vessel will begin turning from its Heading to that requested
by the GPS unit, at a maximum rate of 10 degrees per second.
If no GPS data is received by the AP55, the autopilot will lock
onto the course of the vessel at the time that GPS Mode was
engaged, and the “NO GPS DATA” alarm will function.