April 2, 2010 05:17
2 things come to mind:
1. Make your waypoint arrival circle smaller. When crossing the arrival circle with the "Auto Next" function selected, a new BTW (Bearing to Waypoint) to the next waypoint is immediately calculated from current position, NOT from the waypoint you were steering to.
2. If you have a waypoint activated in MacENC but you're NOT using the Autopilot to follow it ("Track" with Raymarine gear "Nav" with yours?) i.e you are just on Auto or hand steering, any crosstrack that is built up from the time you activated the Waypoint in MacENC til the time you put the Autopilot into "Nav" will immediately be dealt with by your Autopilot. This could make for some large course corrections. The way to deal with this is to reset the Waypoint by selecting it in the Waypoints or Route panel and hitting "Go To" again (a new BTW is drawn with your crosstrack at zero), THEN go into "Nav".
Remember, all MacENC is doing is sending out "direction to turn" for new waypoints and then crosstrack error and BTW for the Autopilot to follow.
.....if there are intermittant errors coming from the fluxgate driving your Autopilot, that could also explain the issue.
1. Make your waypoint arrival circle smaller. When crossing the arrival circle with the "Auto Next" function selected, a new BTW (Bearing to Waypoint) to the next waypoint is immediately calculated from current position, NOT from the waypoint you were steering to.
2. If you have a waypoint activated in MacENC but you're NOT using the Autopilot to follow it ("Track" with Raymarine gear "Nav" with yours?) i.e you are just on Auto or hand steering, any crosstrack that is built up from the time you activated the Waypoint in MacENC til the time you put the Autopilot into "Nav" will immediately be dealt with by your Autopilot. This could make for some large course corrections. The way to deal with this is to reset the Waypoint by selecting it in the Waypoints or Route panel and hitting "Go To" again (a new BTW is drawn with your crosstrack at zero), THEN go into "Nav".
Remember, all MacENC is doing is sending out "direction to turn" for new waypoints and then crosstrack error and BTW for the Autopilot to follow.
.....if there are intermittant errors coming from the fluxgate driving your Autopilot, that could also explain the issue.