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The Special Use Airspace settings page will allow you turn the controlled/restricted air-
space message alerts on or off. This will not affect the alerts being listed on the nearest page.
It will simply turn off the warning when you are approaching or near an SUA. Warnings can
be turned off for the following airspaces:
class B/cta : ICAO control area moa: Military operations area
class C/tma : ICAO Terminal Control Area other: Other areas
rstc: Restricted areas
SUA warnings for prohibited airspace cannot be turned off. The ‘alt’ field, located at the
bottom of the SUA settings page, is an altitude buffer which ‘expands’ the vertical range of the
SUA, so you will be notified if you are within a certain range of an SUA. For example, if the
buffer is set at 500 feet, and you are less than 500 feet above or below an SUA, you will not
be notified with an alert message; if you are less than 500 feet above or below an SUA and
projected to enter it, you will be notified with an alert message. The default setting for the
altitude buffer is 200 feet.
To set the warnings or change the altitude buffer:
1. Press and hold
M
, and use
O
to display the SUA settings page.
2. Press
C
twice.
3. Rotate
O
to highlight the field you would like to change.
4. Use
K
to change to ‘on’ or ‘off’.
5. To change the altitude buffer, highlight the buffer value, and use
K
and
O
to change the data.
Press
E
to accept.
6. Press
C
to complete.
101
APPENDIX D
Messages &
Abbreviations
Altitude Buffer set at 500 feet.
SUA Settings
SECTION
7
UNIT SETTINGS
SUA Settings
Altitude Buffer
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