56 AQUAMAP™ 10x2/12x2 SERIESThe moving targets are color-coded so you can tell at a glance which targetsare heading your way and which are heading away from you. On mostcolor schemes, green indicates the target is moving away from you and redindicates the target is moving toward you.Enabling a Guard ZoneYou can enable a guard zone to alert you when anything comes within aspecified area around your boat.NOTE: This feature is not available in dual radar modes.From a radar screen, select MENU > Radar Options > Enable GuardZone.Defining a Circular Guard ZoneBefore you can define the boundaries of the guard zone, you must enable aguard zone.You can define a circular guard zone that completely surrounds your boat.1 From a radar screen, select MENU > Radar Options > Adjust GuardZone > Adjust Guard Zone > Circle.2 Select the location of the outer guard zone circle.3 Select the location of the inner guard zone circle to define the width of theguard zone.Defining a Partial Guard ZoneYou can define the boundaries of a guard zone that does not completelysurround your boat.1 From a radar screen, select MENU > Radar Options > Adjust GuardZone > Adjust Guard Zone > Corner 1.2 Select the location of guard-zone corner 1 .3 Select Corner 2.4 Select the location of guard-zone corner 2 to define the width of theguard zone.5 Select Done.Disabling a Guard ZoneYou can disable a guard zone.From a radar screen, select MENU > Radar Options > Adjust GuardZone > Disable Guard Zone.The guard zone configuration is saved, so you can enable it again whenneeded.MARPAMini-automatic radar plotting aid (MARPA) enables you to identify and tracktargets and is primarily used for collision avoidance. To use MARPA, youassign a MARPA tag to a target. The radar system automatically tracks the