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TOC
The following may cause abnormalities in displayed NEXRAD radar images:
• 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
NOTE: At present, NEXRAD data can age significantly by the time the
mosaic image is created. Although such situations are not believed to be
typical, in extreme latency and mosaic-creation scenarios, the actual age
of the oldest NEXRAD data in the mosaic can exceed the age indication
in the cockpit by 15-20 minutes. Even small time differences between
the age indicator and actual conditions can be important for safety of
flight, especially when considering fast-moving weather hazards, quickly
developing weather scenarios, and/or fast-moving aircraft.
4.7.6
XM Weather Page Map Orientation
The Orientation option sets the orientation of the Wx Data Link Map pages.
1. While viewing the Wx Data Link Map 1, 2, or 3 of the Wx page group, press the
MENU key. With "Weather Setup" highlighted, press ENT.
2. Turn the small MFD knob to select "Weather Setup 1/2" and press ENT.
3. With the "Map Orientation" option active, turn the small MFD knob to change
the highlighted value.
4. Press ENT to accept the displayed value. The next option will be highlighted.
5. Press the small MFD knob to cancel selection or to end editing and return to
the Navigation Map page or turn the large MFD knob to the next option.
4-62
Figure 4-40 Weather Page Map Orientation
Garmin G500/G600 Pilot's Guide
190-00601-02 Rev. J