Garmin GNC 420W Pilots Guide - Page 144

SECTION 8 NRST PAGES 5) Press the ENT Key to place the selected frequency in the standby field of the COM (Figure 8-26). Figure 8-26 Frequency Moved to Standby Field 8.9 Nearest Airspace Page The last page in the NRST group, the Nearest Airspace Page (Figure 8-29) alerts the pilot to as many as nine controlled or special use airspaces near or in the flight path. Alerts are provided according to the following conditions: • If the projected course will take the aircraft inside an airspace within the next ten minutes, the alert message 'Airspace ahead -- less than 10 minutes' appears (Figure 8-27). The Nearest Airspace Page shows the airspace as 'Ahead'. 6) Press the COM Flip-flop Key to activate the selected frequency. 7) Press the small right knob to remove the flashing cursor. Figure 8-27 Airspace Messages • If the aircraft is within two nautical miles of an airspace and the current course will take the aircraft inside, the message 'Airspace near and ahead' appears (Figure 8-27). The Nearest Airspace Page shows 'Within 2nm of airspace'. • If the aircraft is within two nautical miles of an airspace and the current course will not take the aircraft inside, the message 'Near airspace less than 2nm' appears. The Nearest Airspace Page shows the airspace as 'Ahead < 2nm'. 8-10 GNC 420(A) Pilot's Guide and Reference 190-00140-20 Rev. K