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
362
HAZARD AVOIDANCE
11’ for 12”
antenna
MPEL
Boundary
Figure 6-54 MPEL Boundary
BASIC ANTENNA TILT SETUP
Thefollowingdiscussionisasimplemethodforsettinguptheweatherradarantennatiltformostsituations.
Itisnottobeconsideredanallencompassingsetupthatworksinallsituations,butthismethoddoesprovide
good overall parameters for the monitoring of threats. Ultimately, it is desired to have the antenna tilted so that
thebottomoftheradarbeamisfourdegreesbelowparallelwiththeground.Thefollowingexampleexplains
one way of achieving this.
Withtheaircraftyinglevel,adjusttheantennatiltsogroundreturnsaredisplayedatadistancethatequals
theaircraft’scurrentaltitude(AGL)dividedby1,000.Forexample,iftheaircraftisat14,000feet,adjustthe
tiltsothefrontedgeofgroundreturnsaredisplayedat14nauticalmiles.Notethisantennatiltanglesetting.
Now,raisetheantennatilt6degreesabovethissetting.Thebottomoftheradarbeamisnowangleddown4º
from parallel with the ground.
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