Pilot's Guide

190-00494-04 Rev. A
Garmin G1000 Pilot’s Guide for the Cessna Citation Mustang
353
HAZARD AVOIDANCE
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.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 6-71 Horizontal Scan Without and With WATCH
®