Garmin GNC 420W Pilots Guide - Page 145

• If the aircraft has entered an airspace, the message 'Inside Airspace' appears (Figure 8-28). The Nearest Airspace Page shows 'Inside of airspace'. SECTION 8 NRST PAGES Airspace Message Name Annunciator Status and Time to Entry Figure 8-28 Airspace Messages Note that the airspace alerts are based on threedimensional data (latitude, longitude, and altitude) to avoid nuisance alerts. The alert boundaries for controlled airspace are also sectorized to provide complete information on any nearby airspace. Once one of the described conditions exists, the message annunciator flashes, alerting the pilot of an airspace message. Viewing an airspace alert message: 1) When the message annunciator above the MSG Key flashes, press the MSG Key. 2) Press the MSG Key again to return to the previous page. Once an airspace alert message appears, detailed information concerning the specific airspace is provided on the Nearest Airspace Page (Figure 8-29). The Nearest Airspace Page displays the airspace name, status ('Ahead', 'Ahead < 2nm', etc., as described on the preceding page), and a time to entry (if applicable). By selecting any airspace name listed on the Nearest Airspace Page, additional details are provided-including controlling agency, communication frequencies, and floor/ceiling limits. Position of Current Page within Current Page Group Current Page Group Number of Pages in Current Page Group Figure 8-29 Nearest Airspace Page Viewing additional details for an airspace listed on the Nearest Airspace Page: 1) Select the Nearest Airspace Page, using the steps outlined in Section 8.1 (Figure 8-30). Figure 8-30 Nearest Airspace Page 2) Press the small right knob to activate the cursor. 190-00140-20 Rev. K GNC 420(A) Pilot's Guide and Reference 8-11