Avidyne IFD540 Manual de Instalação descarregar pdf (Página 99)

Map Pages 3-21

TERRAIN

Both Terrain Awareness (TA) and Forward Looking Terrain

Alerting (FLTA) are meant to serve as an aid to situational

awareness. They are intended to provide terrain and obstacle

awareness in the proximity of your aircraft. They are not meant to

be the sole means of terrain or obstacle avoidance.

Both TA and FLTA use a GPS-based MSL altitude and a 9 arc-

sec terrain database (WGS-84) to display a two dimensional

scene representing an “exocentric” look-down-from-above view.

The database is loaded on the IFD prior to shipping from the

factory, and is capable of being updated in the same manner as

other onboard databases, if necessary.

Both TA and FLTA compute height above terrain via GPS inputs

and are not a radio altimeter (RADALT).

TERRAIN AWARENESS (TA)

TA is for general situational awareness purposes and consists of

hatched terrain on any map page. TA will not generate a CAS

message or aural alert.

Terrain Awareness (TA)

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Avidyne IFD540 Manual de Instalação Página 99