Garmin GNS 430 - Manual (Page 26)

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The last page in the NRST group, the nearest airspace page, provides information
for up to nine controlled or special-use airspaces near or in your fl ight path. Airspace
information appears on this page based upon the same criteria used for airspace alert mes-
sages. Nearby airspace information and airspace alert messages are provided according to
the following conditions:
• If your projected course will take you inside an airspace within the next ten
minutes, the message “Airspace ahead -- less than 10
minutes” will appear.
• If you are within two nautical miles of an airspace and your current course
will take you inside, the message “Airspace near and ahead” will appear.
• If you are within two nautical miles of an airspace and your current course
will not take you inside, the message “Near airspace less than 2nm” will
appear.
• If you have entered an airspace, the message “Inside Airspace” will appear.
By default, airspace alert messages are turned off. When turned on, the message (MSG)
annunciator located directly above the M key will fl ash to alert you to the airspace mes-
sage. (See page 154 for information on enabling airspace alert messages.)
To view an airspace alert message:
1. Press the M key. The message page appears with the alert message.
2. Press M again to return to the previous display.
Note that the airspace alerts are based upon three-dimensional data (latitude, longi-
tude and altitude) to avoid nuisance alerts. The alert boundaries for controlled airspace
are also sectorized to provide complete information on any nearby airspace. Additional
information about a nearby airspace—such as controlling agency, frequency and fl oor/
ceiling limits—is available from the nearest airspace page (see page 128 and illustrations
shown at left).
TAKEOFF TOUR
Special-use and
Controlled Airspace
When an airspace alert occurs, the message
(MSG) annunciator will flash. Press
M to
view the alert message.
To view additional information about the
airspace, select the nearest airspace page.
Detailed information is available by highlight-
ing the airspace name and pressing
E .
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