Garmin G3X Pilots Guide - Page 98

Overview System Instruments Flight EIS CNS Interface GPS Navigation Flight Instruments Automatic CDI Scale Selection (Internal GPS Only) NOTE: When an external GPS navigator is in use, the pilot cannot change the CDI scale. Three factors determine the default distance from the center of the CDI to full left or right limits: • CDI scale = 1.25 nm - within 30 nm of any airport in the active route. • CDI scale = 0.25 nm - on an approach leg or within 2 nm of the FAF or MAP. • CDI scale = 5.0 nm - if the previous two conditions do not exist. Manual CDI Scale Selection (Internal GPS Only) Adjusting the CDI scale: From the full-screen PFD and/or split-screen PFD Page, press the RNG Key down arrow to zoom in (decrease CDI scale), or the up arrow to zoom out (increase CDI scale). The current CDI scale appears in the upper right corner of the HSI. Current CDI Scale Horizontal Situation Indicator (HSI) The Automatic CDI Scale Selection will resume once the default determining factor for the current phase of flight matches the user-selected CDI scale. Flight Planning Hazard Avoidance Additional Features Integrated Autopilot Annun/Alerts Appendix Index 80 Garmin G3X Pilot's Guide 190-01115-00 Rev. F