Garmin G1000 Pilot's Manual page 241

NEXRAD radar images may display abnormalities. These include but are not limited to:
• Ground clutter
• Strobes and spurious radar data
• Sun strobes (when the radar antenna points directly at the sun)
• Interference from buildings or mountains, which may cause shadows
• Metallic dust from military aircraft, which can cause alterations in radar scans
190-00592-02 Rev. A
Figure 6-7 NEXRAD Data - Zoomed
Garmin G1000 Pilot's Guide for the Diamond DA40/40F
HAZARD AVOIDANCE
Block has an Area
of 4 sq. km
6-9