Garmin GNC 420W Pilots Guide - Page 12

SECTION 1 INTRODUCTION NOTE: Data is entered using the large and small right knobs (Figure 1-2). Experiment with them to become efficient at entering data. This will greatly reduce the amount of time spent operating the GNC 420 in flight. Figure 1-2 Blank Direct-to Page NOTE: When the GNC 420 displays a list of information that is too long for the display screen, a scroll bar appears along the right-hand side of the display (Figure 1-3). The scroll bar graphically indicates the number of additional items available within the selected category. To scroll through the list, press the small right knob to activate the cursor, then turn the large right knob. Scroll Bar Bottom Row Keys (10) NRST Key - Displays the Nearest Airports Page. Then, turning the small right knob steps through the NRST pages. (11) OBS Key - Selects OBS mode, which retains the current 'active to' waypoint as the navigation reference even after passing the waypoint (i.e., prevents sequencing to the next waypoint). Pressing the OBS Key again returns the unit to normal operation, with automatic sequencing of waypoints. When OBS mode is selected, the pilot may set the desired course to/from a waypoint using the 'Select OBS Course' pop-up window, or an external OBS selector on the HSI or CDI. (12) MSG Key - Used to view system messages and to alert the pilot to important warnings and requirements. See Section 12.1 for more information on messages. (13) FPL Key - Allows the pilot to create, edit, activate, and invert flight plans, as well as access approaches, departures, and arrivals. A closest point to flight plan feature is also made available by pressing the FPL Key. See Section 5 for more information on flight plans. (14) PROC Key - Allows the pilot to select and remove approaches, departures, and arrivals from the flight plan. When using a flight plan, available procedures for the departure and/or arrival airport are offered automatically. Otherwise, the pilot may select the desired airport, then the desired procedure. Figure 1-3 Scroll Bar 1-4 GNC 420(A) Pilot's Guide and Reference 190-00140-20 Rev. K