Garmin GNC 420W Pilots Guide - Page 171

SECTION 9 AUX PAGES 4) To change the altitude buffer, turn the large right knob to highlight the 'Altitude Buffers' field (Figure 9-57). Use the small and large right knobs to enter the desired buffer distance. Press the ENT Key when finished. Setup 1 Page: CDI Scale/Alarms Changing the CDI scale: 1) Select 'CDI/Alarms' from the Setup 1 Page (Figure 9-58), using the steps described at the beginning of this section. Figure 9-57 Buffer Distance Field Selected NOTE: When an approach has been loaded into the active flight plan, airspace alert messages are disabled within 30nm of the destination airport. Figure 9-58 CDI/Alarms Highlighted 2) The flashing cursor highlights the 'Selected CDI' field (Figure 9-59). Turn the small right knob to select the desired CDI scale. The selected scale and any lower scale settings are used during the various phases of flight as described at the beginning of this section. 190-00140-20 Rev. K Figure 9-59 Selected CDI Field Highlighted 3) Press the ENT Key to accept the selected scale. The 'System CDI' field displays the CDI scale currently in use. The 'System CDI' setting may differ from the 'Selected CDI' depending upon the current phase of flight. GNC 420(A) Pilot's Guide and Reference 9-23