
Cirrus Perspective
™
by Garmin – Cockpit Reference Guide for the SR20/SR22/SR22T
190-00821-08 Rev. A
68
Hazard Avoidance
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The following may cause abnormalities in displayed radar images:
• Groundclutter
• Strobesandspuriousradardata
• Sunstrobes(whentheradarantennapointsdirectlyatthesun)
• Interferencefrombuildingsormountains,whichmaycauseshadows
• Metallicdustfrommilitaryaircraft,whichcancausealterationsinradarscans
Infrared Satellite
Infrared Satellite (IR SAT) data depicts cloud top temperatures from satellite
imagery. Brighter cloud top colors indicate cooler temperatures occurring at higher
altitudes.
Displaying Cloud Tops information
1)
Select the GFDS Weather Data Link Page.
2)
Select the IR SAT Softkey.
To display the Infrared Satellite legend, select the LEGEND Softkey when Infrared
Satellite data is selected for display.
Data Link Lightning
Lightning data shows the approximate location of cloud-to-ground lightning strikes.
A strike icon represents a strike that has occurred within a two-kilometer region.
Neither cloud-to-cloud nor the exact location of the lightning strike is displayed.
If the aircraft is also equipped with an on-board lightning detection system (e.g.,
L-3WX-500Stormscope
®
), only one lightning product may be enabled for display at
a time.
Displaying Data Link Lightning information
1)
Select the MAP Softkey (for the PFD Inset Map, select the INSET Softkey).
This step is not necessary on the GFDS Weather Data Link Page.
2)
Select the DL LTNG Softkey.
To display the Data Link Lightning legend on the Weather Data Link Page, select
the LEGEND Softkey when Data Link Lightning is selected for display.
SIGMETs and AIRMETs
TheentireSIGMETorAIRMETisdisplayedaslongasanyportionofitisoccurring
within the coverage area of the GFDS data request.
Commentaires sur ces manuels