Garmin 420 用户指南
GNS 430 Pilot’s Guide and Reference
8-10
SECTION 8
NRST PAGES
5) Press the ENT Key to place the selected
frequency in the standby field of the COM or
VLOC Window (figure 8-25).
VLOC Window (figure 8-25).
Figure 8-25 Frequency Moved to Standby Field
6) Press the COM Flip-flop or VLOC Flip-flop
Key, as appropriate, to activate the selected
frequency.
frequency.
7) Press the small right knob to remove the
flashing cursor.
8.9 NEAREST AIRSPACE PAGE
The last page in the NRST group, the Nearest Airspace
Page 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:
special use airspaces near or in the flight path. Alerts are
provided according to the following conditions:
• If the aircraft’s projected course will take it inside
an airspace within the next ten minutes, the alert
message ‘Airspace ahead -- less than 10 minutes’
appears (Figure 8-26). The Nearest Airspace Page
shows the airspace as ‘Ahead’.
message ‘Airspace ahead -- less than 10 minutes’
appears (Figure 8-26). The Nearest Airspace Page
shows the airspace as ‘Ahead’.
Figure 8-26 Airspace Messages
• If the aircraft is within two nautical miles of
an airspace and the current course will take it
inside the airspace, the message ‘Airspace near
and ahead’ appears (Figure 8-26). The Nearest
Airspace Page shows ‘Within 2nm of airspace’.
inside the airspace, the message ‘Airspace near
and ahead’ appears (Figure 8-26). The Nearest
Airspace Page shows ‘Within 2nm of airspace’.
• If aircraft is within two nautical miles of an
airspace and the current course will not take it
inside the airspace, the message ‘Near airspace less
than 2nm’ appears. The Nearest Airspace Page
shows the airspace as ‘Ahead < 2nm’.
inside the airspace, the message ‘Near airspace less
than 2nm’ appears. The Nearest Airspace Page
shows the airspace as ‘Ahead < 2nm’.