Garmin GPS 400 Pilot's Manual And Reference

Also see for GPS 400: Instructions Pilot's guide addendum Pilot's guide addendum Pilot's guide addendum Maintenance manual

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Garmin GPS 400 Pilot's Manual And Reference Manual pdf 43 page image

GPS 400 Pilot’s Guide and Reference190-00140-60 Rev. ESECTION 2NAV PAGES2-17Inhibit ModeTERRAIN has an inhibit mode that deactivates theFLTA/PDA visual alerts. Pilots should use discretion wheninhibiting TERRAIN and always remember to enablethe system when appropriate. See Section 9.3 for moreinformation on TERRAIN alerts.Inhibit TERRAIN:1) Select the TERRAIN Page and press the MENUKey. ‘Inhibit Terrain?’ is selected by default(Figure 2-31).Figure 2-31 TERRAIN Page Menu2) Press the ENT Key. The ‘TER INHB’ annunciationis displayed in the TERRAIN annunciator fieldwhen TERRAIN is inhibited (Figure 2-32).Annunciator FieldFigure 2-32 TERRAIN Annunciator FieldEnabling TERRAIN:1) Select the TERRAIN Page and press the MENUKey. ‘Enable Terrain?’ is selected by default.2) Press the ENT Key. The TERRAIN system isfunctional again.TERRAIN SymbolsNOTE: See Section 9.2 for a complete descriptionof TERRAIN symbology.The following symbols (Figure 2-33) are used torepresent obstacles and potential impact points on theTERRAIN Page.• Red Symbol - Terrain/Obstacle is above or within100 feet below the aircraft altitude• Yellow Symbol - Terrain/Obstacle is between 1000feet and 100 feet below the aircraft altitude• Black Symbol - Terrain/Obstacle is more than1000 feet below the aircraft altitudeNOTE: Obstacle symbols are shown on displayzoom ranges up to 10 nm.UnlightedObstacles<1000 feet AGLLightedObstacles<1000 feet AGLUnlightedObstacles>1000 feet AGLLightedObstacles>1000 feet AGLPotentialImpact PointsFigure 2-33 TERRAIN SymbolsNOTE: If an obstacle and the projected flight pathof the aircraft intersect, the display automaticallyzooms in to the closest potential point of impacton the TAWS Page.