I have Navionics charts
on a Raymarine
gS chart plotter running Lighthouse.
Often when I start the boat
will not appear, just an array of dots with the boat
icon on it and vectors.
Then later (like 15 minutes later when the boat is heading out) the chart will suddenly come on.
Also, sometimes the chart just will go off. I will navigating some tricky channel and all of a sudden the chart goes blank and all the buoys disappear, and I am scrambling to find the paper chart. Then 10 minutes later, the Navionics
will come on again.
How can I diagnose or fix this?