When you are ready to return, activate the route you created in reverse order(use “INV?” instead of “ACT?” when activating the route). The GPS 100 willautomatically guide you back to your destination by passing over thewaypoints you created! As an added benefit, you now have a route that willtake you back to your fishing spot at any time.12.2 PARALLEL OFFSET NAVIGATIONParallel offset navigation, introduced in Section 11.4, can be extremelyuseful in either the marine or aviation environment. Offset navigation allowsyou to translate your course to the left or right of the actual route by a distanceyou choose. This feature can help you stay clear of dangerous areas and canalso help with specialized navigation such as shrimping, weather avoidance,airway navigation, or search and rescue.Suppose you are navigating in an area with a coast line as illustrated above.You wish to navigate a course that is 3 nautical miles off the coast. Createseveral waypoints along the coast line. Create and activate a route usingthese waypoints, then go to the Offset Navigation/Mag Var page to set theoffset distance.12-2WPT3WPT23 NMWPT1WPT4
