Navigation190-02207-02 Rev. 1 GPS 175/GNX 375 Pilot’s Guide 3-153.2.3 North Up AboveSets the range at which map orientation changes to North Up.3.2.4 Visual Approach3.2.5 TOPO ScaleUsing the North Up Above feature causes the screen to switch at certain zoomlevels. This is useful as a shortcut to quickly increase situational awareness.Sets the distance from thedestination airport at which theVisual Approach selector keybecomes active.Visual ApproachKeyTo reduce page clutter, the key moves to the upperleft corner of the display when the info banner isactive.Displays a topographical elevationscale.