I have a Ray
Marine E80 chart plotter. I was recently on the
boat and the chart plotter would not hold it's orientation. It would rotate back and forth on the
screen. It would not loose its
GPS location. The next day I recalibrated
the
autopilot and it did fine but the next day it was back to not working well.
The problems are 1.
autohelm heading (displayed on unit) is not correct and sometimes appears stuck on one number 2. the chart plotter orientation shifts 3.
autopilot does not
work (i.e. hold the correct course).
My diagnosis is something wrong with the heading
sensor or communication with the heading
sensor. I do not know where to go from here and/or if it is a good idea.
RDW