Garmin G1000H Marine Radio User Manual


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Garmin G1000H
™
Pilot’s Guide for the Bell 407GX
190-01255-00 Rev B62
FLIGHT INSTRUMENTS
COURSE DEVIATION INDICATOR (CDI)
NOTE
: During a heading change of greater than 105˚ with respect to the course, the CDI on the Arc HSI
switches to the opposite side of the deviation scale and displays reverse sensing.
The Course Deviation Indicator (CDI) moves left or right from the course pointer along a lateral deviation
scale to display aircraft position relative to the course. If the course deviation data is not valid, the CDI is not
displayed.
Figure 2-25 Course Deviation Indicator
Crosstrack
Error
CDI
Navigation
Source
CDI
Scale
Flight
Phase
Arc HSI
Navigation
Source
Scale
CDI
360º HSI
Flight
Phase
TheCDIcandisplaytwosourcesofnavigation,GPSorVOR/LOC.Colorindicatesthecurrentnavigation
source,magentaforGPSandgreenforVORandLOC.ThefullscalelimitsfortheCDIaredenedbyaGPS-
deriveddistancewhencoupledtoGPS.WhennavigatingusingaVORorlocalizer(LOC),theCDIusesthe
same angular limits as a mechanical CDI. If the CDI exceeds the maximum deviation on the scale (two dots)
whilenavigatingwithGPS,thecrosstrackerror(XTK)isdisplayedbelowthewhiteaircraftsymbol.
Figure 2-26 Navigation Sources
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