Garmin GTN 625Xi, Pilot'S Manual

Page: 322 / 534

5-14 Pilot’s Guide 190-02327-03 Rev. C
Hazard Awareness
Source Options:
Source options are selectable from the FIS-B Weather menu or the NEXRAD key
located in the control bar. The key label changes to reflect the active source.
CONUS
•
Large, low-resolution weather image for the entire
continental U.S.
•
Pixels are 7.5 min (7.5 nm = 13.89 km) wide by 5 min
(5 nm = 9.26 km) wide
Regional
•
High-resolution weather image with limited range, centered
around each broadcasting ground station
•
Pixels are 1.5 min (1.5 nm = 2.78 km) wide by 1 min
(1 nm = 1.852 km) tall
•
Each weather pixel varies with latitude. Above 60º latitude,
pixel block width doubles to 3 min/nm for regional maps
Combined
•
Both CONUS and Regional NEXRAD images display
simultaneously
•
White hash mark indicates regional boundary
CONUS & Regional NEXRAD
Combined
Regional
Boundary
CONUS
Echo Block
Regional
Echo Block
Missing Data Indications
A semi-transparent mask
indicates regions where data
may be missing or incomplete.
Color is dependent upon the
presence of topographical data.
The mask is purple when there
is no underlying topographical
data, such as on the FIS-B
weather display, or on Map
when the TOPO overlay is off.
On Map, the mask is dark gray
when the TOPO overlay is on,
so that the underlying
topographical features can still
be interpreted.
Data Not
Received
for Region