Cockpit Reference Guide

190-00763-02 Rev. A
Garmin G1000 Pilot’s Guide for the Piper PA-46 Meridian
347
HAZARD AVOIDANCE
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EICAS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICES INDEX
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EICAS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICES INDEX
Weather Attenuated Color Highlight (WATCH®)
WATCH
®
identiesdeceptivelystrongorunknownintensitypartsofastorm.Whileinhorizontalscan
mode,thisfeaturecanbeusedasatooltodetermineareasofpossibleinaccuraciesindisplayedintensity
duetoweakeningoftheradarenergy.Whileinhorizontalscanmode,thisfeaturecanbeusedasatool
todetermineareasofpossibleinaccuraciesindisplayedintensityduetoweakeningoftheradarenergy.
Thisweakeningisknownasattenuation.Theradarenergyweakensasitpassesthroughareasofintense
precipitation,largeareasoflesserprecipitation,anddistance.Issueswiththeradomealsoattenuatesthe
radarenergy.Allthesefactorshaveaneffectonthereturnintensity.Themoreenergythatdissipates,the
lesserthedisplayedintensityofthereturn.Accuracyofthedisplayedintensityofreturnslocatedinthe
shadedareasaresuspect.Makemaneuveringdecisionswiththisinformationinmind.Properantennatilt
managementshouldstillbeemployedtodeterminetheextentofattenuationinashadedarea.
ToactivateordeactivatetheWATCH
®
feature, select the WATCHSoftkey.
Horizontal Scan With WATCH
®
Horizontal Scan Without WATCH
®
Areas of
Attenuated Signal
Displayed intensity is questionable.
Potentially stronger than displayed.
Figure 6-61 Horizontal Scan Without and With WATCH
®