Inhibit Mode; Terrain Symbols; Color Interpretation; General Database Information - Garmin GNS 530W Pilot's Manual & Reference

2 - NAV PAGES
Terrain Operation
"Show Aviation Data?" Menu
Selection
To show or hide aviation data:
1. Select the Terrain Page and press MENU.
2. Select "Show (or Hide) Aviation Data" and
press ENT. Pressing the CLR key when the
TERRAIN Page is displayed will also toggle
aviation information on or off.

Inhibit Mode

The Garmin Terrain system provides an "inhibit
mode". This mode is designed to deactivate Premature
Descent Alert/Forward Looking Terrain Avoidance
(PDA/FLTA) visual alerts when they are deemed
unnecessary by the pilot. Flying VFR into an area
where unique terrain exists could cause the system
to annunciate a nuisance alert. Pilots should use
discretion when inhibiting the TERRAIN system
and always remember to enable the system when
appropriate. When Terrain is inhibited, the terrain
page will still be active, but alerts and messages will
not be generated. See the Terrain Alerts section for
more information on terrain alerts.
Inhibiting Terrain
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To inhibit Terrain:
1. Select the Terrain Page and press MENU.
"Inhibit Terrain?" is selected by default.
Press ENT. The Terrain system is inhibited. The
2.
annunciation is displayed in the
terrain annunciator field whenever terrain is
inhibited.
To enable TERRAIN:
Enabling Terrain
1. Select the Terrain Page and press MENU.
"Enable Terrain?" is selected by default.
Press ENT. The Terrain system is functional
2.
again.

Terrain Symbols

The following symbols are used to represent
obstacles and potential impact points on the Terrain
Page. Note that obstacle symbols are shown on display
zoom ranges up to 10 NM :

Color Interpretation

The Garmin TERRAIN system uses black, yellow,
and red to depict terrain information relative to aircraft
altitude.

General Database Information

The Garmin TERRAIN system uses terrain and
obstacle information supplied by government sources.
The data undergoes verification by Garmin to confirm
accuracy of the content, per TSO-C151b. However, the
information displayed should never be understood to
be all-inclusive. Pilots must familiarize themselves
with the appropriate charts for safe flight.