Garmin GNC 420W Pilots Guide - Page 147

SECTION 8 NRST PAGES 6) To return to the Airspace Page, turn the large right knob to highlight 'Done?' and press the ENT Key (or press the CLR Key). 7) To return to the Nearest Airspace Page, turn the large right knob to highlight 'Done?' and press the ENT Key (or press the CLR Key). 8) Press the small right knob to remove the flashing cursor. The Airspace Page displays (and airspace alert messages are provided for) the following airspace types (Figures 8-35, 8-36, and 8-37): • Alert • Caution • Class B • Class C • Class D • CTA • Danger • MOA • Prohibited • Restricted • TMA • Training • TRSA • Unspecified • Warning The bottom right-hand corner of the Airspace Page displays the floor and ceiling limits of the airspace. The following are examples of what may appear as vertical limits for an airspace: • 5000 ft msl (5000 feet mean sea level) • 5000 ft agl (5000 feet above ground level) • MSL (at mean sea level) • Notam (Notice to Airmen) • Unknown • Unlimited • See Chart • Surface All airspace alert messages, except for prohibited areas, may be turned on or off from the Airspace Alarms Page. An altitude buffer is also provided on the Airspace Alarms Page to provide an extra margin of safety above/below the published limits (Section 9.4, Setup 1 Page: Airspace Alarms for additional details). Figure 8-35 Airspace Page for Class C Airspace Figure 8-36 Airspace Page for MOA Figure 8-37 Airspace Page for Prohibited Area 190-00140-20 Rev. K GNC 420(A) Pilot's Guide and Reference 8-13