September 23, 2009 21:47
A few points:
1) Enabling a manual variation in the MacENC Preferences will be cause MacENC to start using Magnetic bearings and the respective "True Bearings" in the "View" menu will be unselected.
2) IF manual is NOT checked then Variation come from the GPS (If available) otherwise it is computed based on the center position of the chart.
3) If "True Bearings" is enabled then the variation displayed in the MacENC Preferences is not used and should not be interpretted as the accurate variation for the position. MacENC 7.20 and GPSNavX 5.50 now display "True" for variation when "True Bearings" is enabled.
1) Enabling a manual variation in the MacENC Preferences will be cause MacENC to start using Magnetic bearings and the respective "True Bearings" in the "View" menu will be unselected.
2) IF manual is NOT checked then Variation come from the GPS (If available) otherwise it is computed based on the center position of the chart.
3) If "True Bearings" is enabled then the variation displayed in the MacENC Preferences is not used and should not be interpretted as the accurate variation for the position. MacENC 7.20 and GPSNavX 5.50 now display "True" for variation when "True Bearings" is enabled.
Scott Dillon
Sydney Australia
North Shore 38
CYCA
Sydney Australia
North Shore 38
CYCA