Garmin Flight Deck 100 Marine Instruments User Manual


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Embraer Prodigy
®
Flight Deck 100 Pilot’s Guide
190-00728-04 Rev. A
376
HAZARD AVOIDANCE
ToactivateordeactivateWeatherAlerts,selecttheWX ALRTSoftkey.Activatinganddeactivatingenables
or inhibits the alert on the PFD.
Figure 6-69 Weather Alert on PFD
GROUND MAPPING AND INTERPRETATION
Asecondaryuseoftheweatherradarsystemisforthepresentationofterrain.Thiscanbeausefultoolfor
verifyingaircraftposition.Apictureofthegroundisrepresentedmuchlikeatopographicalmapthatcanbe
usedasasupplementtothenavigationmapontheMFD.
GroundMapmodeusesadifferentgainrangethanWeathermode.Differentcolorsarealsousedtorepresent
theintensitylevels.Thedisplayedintensityofgroundtargetreturnsaredenedinthetablebelow.Useofthe
GAIN and TILT controls help improve contrast so that specific ground targets can be recognized more easily.
Aspreviouslydiscussed,thetypeandorientationofthetargetinrelationtotheaircraftaffectstheintensity
displayed.
Whentheweatherradarsystem isineithertheWeather orGroundMapmode,thesystem automatically
switchestoStandbymodeuponlanding.
Ground Map
Mode Color
Intensity
Black
0 dB
Light blue
> 0 dB to < 9 dB
Yellow
9 dB to < 18 dB
Magenta
18 dB to < 27 dB
Blue
27 dB and greater
Table 6-4 Ground Target Return Intensity Levels
Operation in Ground Map Mode
1) Select the
MODE Softkey.
2) Select the GROUND Softkey to place the radar in Ground Map mode.
3) Select the BACK Softkey.
4) Select the FMS Knob to activate the cursor.
5) Turn the large
FMS Knob to place the cursor in the TILT field.
6) Adjust the antenna tilt angle by turning the small
FMS Knob to display ground returns at the desired distance.
7) Press the FMS Knob to remove the cursor.
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