GPS 400 Pilot’s Guide and Reference
190-00140-60 Rev. E
7-11
SECTION 7
NRST PAGES
The Airspace Page displays (and airspace alert messages
are provided for) the following airspace types (Figures
7-25, 7-26, and 7-27):
• 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 8.4, Setup 1 Page: Airspace
Alarms for additional details).
Figure 7-25 Airspace Page for Class C Airspace
Figure 7-26 Airspace Page for MOA
Figure 7-27 Airspace Page for Prohibited Area