3D Connexion GNS 530(A) manual Inhibit Mode, Terrain Symbols, Inhibiting Terrain, Enabling Terrain

Inhibit Mode

TERRAIN has an inhibit mode that deactivates the FLTA/ PDA aural and visual alerts. Pilots should use discretion when inhibiting TERRAIN and always remember to enable the system when appropriate. For more information, see Section 12.3, TERRAIN alerts.

Inhibiting TERRAIN:

1)Select the TERRAIN Page and press the MENU Key. ‘Inhibit Terrain?’ is selected by default (Figure 3-31).

Figure 3-31 TERRAIN Page Menu

2)Press the ENT Key. The ‘TER INHB’ annunciation is displayed in the annunciator field when TERRAIN is inhibited (Figure 3-32).

Annunciator Field

Figure 3-32 TERRAIN Annunciator Field

SECTION 3

NAV PAGES

TERRAIN Symbols

NOTE: See Section 12.2 for a complete description of TERRAIN symbology.

The following symbols (Figure 3-33) are used to represent obstacles and potential impact points on the TERRAIN Page.

•Red Symbol - Terrain/Obstacle is above or within 100 feet below the aircraft altitude

•Yellow Symbol - Terrain/Obstacle is between 100 feet and 1000 feet below the aircraft altitude

•Black Symbol - Terrain/Obstacle is more than 1000 feet below the aircraft altitude

NOTE: Obstacle symbols are shown on display zoom ranges up to 10 nm.

Unlighted	Lighted	Unlighted
Obstacles	Obstacles	Obstacles
<1000 feet AGL	<1000 feet AGL	>1000 feet AGL

Enabling TERRAIN:

1)Select the TERRAIN Page and press the MENU Key. ‘Enable Terrain?’ is selected by default.

2)Press the ENT Key. The TERRAIN system is functional again.

Lighted Potential

Obstacles Impact Points >1000 feet AGL

Figure 3-33 TERRAIN Symbols

NOTE: If an obstacle and the projected flight path of the aircraft intersect, the display automatically zooms in to the closest potential point of impact on the TERRAIN Page.

190-00181-00 Rev. E GNS 530(A) Pilot’s Guide and Reference 3-17