I have Raymarine
ST 60 instruments and a S3G autopilot
. I take the GPS
information from the autopilot
out to my computer (XP SP3) and I send the steering
info to the autopilot via NMEA
in. So when I have a route
active I can see that information in the ST 60 instruments. But if I compare the distance to next waypoint I can see a value (RNG) on the computer (OpenCPN 2.5) and a value that is app 10% higher on the ST60 instrument. Also the waypoint from openCPN
will come up on the radar
, also with the same error. When I arrive to the waypoint both are zero.
Is there an explanation to this? Can I correct this error?