Garmin GTN 625 Pilot's Manual page 399

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11.3.7
Precipitation (PRECIP) Data
Graphical data is overlaid on the map indicating the rainfall detected by
ground based radar for a specific area. The colors indicating increasing levels
of rainfall progresses from light green for light rainfall to red for heavy rainfall.
Review the Limitations section in the front of this guide for the limitations that
apply to the Connext data. Rainfall data is color coded as follows:
Figure 11-64 Connext PRECIP Weather Map Display and Legend
The "No Coverage" color indicates that no data is available for that area, and
rainfall in that area is unknown.
When weather data is received, the airborne system will display that data for
20 minutes. If no new data has been received for a given area, the rainfall will
be removed after 20 minutes and the area will revert back to the "No Coverage"
color.
The Connext Weather Function is based on a ground-to-air data link and
requires that the appropriate ground systems are broadcasting weather data and
the aircraft is within reception range of the Ground Broadcast Transceiver (GBT).
190-01004-03 Rev. P
Figure 11-65 Connext Precipitation Data
GTN 625/635/650 Pilot's Guide
Product Age
Precipitation
11-39
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index

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