Garmin G300 Pilot’s Guide 190-00921-00 Rev. D134hazard avoidanceSystemOverviewFlightInstrumentsEISCOMInterfaceGPSNavigationFlightPlanningHazardAvoidanceAdditionalFeaturesIntegratedAutopilotAnnun/AlertsAppendixIndexneXRAD intenSityColors are used to identify the different NEXRAD echo intensities (reflectivity)measured in dBZ (decibels of Z). “Reflectivity” (designated by the letter Z) isthe amount of transmitted power returned to the radar receiver. The dBZ valuesincrease as returned signal strength increases. Precipitation intensity is displayedusing colors corresponding to the dBZ values.NEXRAD DataRADAR LegendSATELLITE MOSAICSatellite Mosaic displays infrared composite images of cloud cover taken bygeostationary weather satellites. The Satellite Mosaic provides up to seven levelsof cloud cover.Satellite Mosaic/Cloud Tops DataRADAR LegendECHO TOPSEcho Tops are derived from NEXRAD radar and indicate the highest altitude atwhich precipitation is falling. Echo Tops at or above the altitude you select aredisplayed, in 5,000 foot increments up to 70,000 ft. Echo Tops can be helpful indetermining the severity of thunderstorms.
