Pilot's Guide

Garmin G1000H
™
Pilot’s Guide for the Bell 407GX
190-01255-01 Rev A74
FLIGHT INSTRUMENTS
ALTITUDE ALERTING
The Altitude Alerting function provides visual and audio alerts when approaching the Selected Altitude.
WhenevertheSelectedAltitudeischanged,AltitudeAlertingisreset.AltitudeAlertingisbasedonthealtitude
informationshownonthePFD.AltitudeAlertingisindependentoftheAFCS.
ThefollowingoccurwhenapproachingtheSelectedAltitude:
•Uponpassingthrough1000feetoftheSelectedAltitude,theSelectedAltitudeBoxchangestoblacktexton
acyanbackground,ashesfor5seconds,andanauraltoneisgenerated.
•Whentheaircraftpasseswithin200feetoftheSelectedAltitude,theSelectedAltitudechangestocyantext
onablackbackgroundandashesfor5seconds.
•AfterreachingtheSelectedAltitude,iftheaircraftiesoutsidethedeviationband(±200feetoftheSelected
Altitude),theSelectedAltitudeBoxchangestoyellowtextonablackbackground,ashesfor5seconds,and
an aural tone is generated.
Figure 2-42 Altitude Alerting Visual Annunciations
Within 1000 ft Within 200 ft Deviation of ±200 ft
LOW ALTITUDE ANNUNCIATION
NOTE: The Low Altitude Annunciation is available only when SBAS is available. This annunciation is not
shown unless HTAWS alerting is inhibited.
WhentheFinalApproachFix(FAF)istheactivewaypointinaGPSSBASapproachusingverticalguidance,
aLowAltitudeAnnunciationmayappearifthecurrentaircraftaltitudeisatleast164feetbelowtheprescribed
altitudeattheFAF.Ablack-on-yellow‘LOWALT’annunciationappearstothetopleftoftheAltimeter,ashing
for several seconds then remaining displayed until the condition is resolved.
Figure 2-43 Low Altitude on GPS SBAS Approach
Altimeter
MINIMUM DESCENT ALTITUDE/DECISION HEIGHT ALERTING
Foraltitudeawareness,aMinimumDescentAltitude(MDA)orDecisionHeight(DH),basedonbarometric
altitude, radaraltitude,ortemperaturecompensatedcanbeset.Whenactive,thealtitudesettingisdisplayed
to the lower left of the altimeter, with a bug at the corresponding altitude along the altimeter (once the altitude
is within the visible range of the tape). The following visual annunciations alert the pilot when approaching
theMDAorDH: