190-02177-02 Rev. A
Garmin G1000 NXi Pilot’s Guide for the Cessna NAV III
SY
STEM
O
VER
VIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO P
ANEL
& CNS
FLIGHT
MANA
GEMENT
HAZARD
AV
OID
ANCE
AFCS
ADDITIONAL
FEA
TURES
APPENDICES
INDEX
273
HAZARD AVOIDANCE
At smaller map ranges, the smallest square block on the display represents an area of approximately
four square kilometers. The intensity level reflected by each square represents the highest level of radar
reflectivity sampled within the area.
Unknown precipitation below 52ºN is displayed as rain regardless of actual precipitation type.
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 (chaff) from military aircraft, which can cause alterations in radar scans
neXraD l
iMitations
(c
anaDa
)
Radar coverage extends to 55ºN.
Any precipitation displayed between 52ºN and 55ºN is displayed as mixed precipitation regardless of
actual precipitation type.
If the precipitation type is unknown, the system displays the precipitation as rain, regardless of actual
precipitation type.
Figure 6-12 NEXRAD Weather Product - Canada
Precipitation
Above 52°N
Always Displays
as Mixed
No Coverage Above
55°N