Quote:
Originally Posted by markpj23
That's good enough for me. Is there a 'trick' to this or does the functionality exist just via the Navigate function of the AP?
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You need two things for it to work:
1) You need a route on the Garmin, and it needs to be activated. I have never used a Garmin, so I don't know how you do that, nor whether they call it "activating" a route or something else. But it causes the Garmin to broadcast info for the next waypoint, and how far off the trackline the boat is, and in what direction. It's then up to the pilot to steer the boat and keep it on the trackline.
2) You need communications between the Garmin and the pilot. This will probably be NMEA 2000. That let's the pilot listen to the route ino.
When you put the pilot in Nav mode, it listens to the waypoint and track info and steers the boat to keep it on the track. It's a very simple communication and protocol, and standardized across all pilots and charting devices.