KevinC
Well-Known Member
The Raymarine customer "support" person doesn't know what they are talking about. A GPS antennae does not give compass orientation information needed for radar overlay. That was bad advice.
While you are correct that the GPS alone does not give compass orientation it is possible to do without a heading sensor. If you read the link I posted above Raymarine support indicated that it was possible on Lighthouse 2 to overlay radar data without a heading sensor. I do not know what software the OP is running.
I know that I already can do this on my Axioms running Lighthouse 3 and I do not have a heading sensor. The only caveat is that the boat must be moving to establish COG from the GPS signal.
-Kevin