Garmin GNS 430 - Manual (Page 180)

GNS 430(A) Pilot’s Guide and Reference 190-00140-00 Rev. P 10-22
SECTION 10
AUX PAGES
• ‘Position/Map Datum’ - Configures position
readout information to the desired position
format. The GNS 430 uses the map datum WGS
84. Note that using a map datum that does not
match the charts used by the pilot can result in
significant differences in position information. If
the pilot is using the paper charts for reference
only, the GNS 430 still provides correct navigation
guidance to the waypoints contained in the
database, regardless of the datum differences.
• ‘Date/Time’ - Provides settings for time format
(local or UTC; 12- or 24-hour) and time offset.
The time offset is used to define current local
time. UTC (also called GMT or Zulu) date
and time are calculated directly from the GPS
satellites’ signals and cannot be changed. To use
local time, simply designate the offset by adding
or subtracting the correct number of hours.
Setup 1 Page: Airspace Alarms
To set the airspace warning messages or
change the altitude buffer:
1) Select ‘Airspace Alarms’ from the Setup 1 Page
(Figure 10-55), using the steps described at the
beginning of this section.
Figure 10-55 Airspace Alarms Highlighted
2) Turn the large right knob to highlight the
‘On’/’Off’ field next to the desired airspace
type. ‘Other SUAs’ includes alert, caution,
danger, training, and warning areas.
3) Turn the small right knob to select ‘On’ or ‘Off’,
as desired (Figure 10-56). Press the ENT Key
to accept the selection.
Figure 10-56 TWR/CTL Zone Alarm Window
4) To change the altitude buffer, turn the large
right knob to highlight the ‘Altitude Buffers’
field (Figure 10-57). Use the small and large
right knobs to enter the desired buffer
distance. Press the ENT Key when finished.
Figure 10-57 Buffer Distance Field Selected
NOTE: When an approach has been loaded into
the active flight plan, airspace alert messages
are disabled within 30nm of the destination
airport.