Garmin GTN 625 Pilot's Manual page 194

8.1.1
Foreword
Map Overlays are layers of information that are referenced to geographic
location and are overlayed on the base map. A green bar will appear below
Getting
Started
the Map Overlay key text when the overlay is selected, except for Airways and
Audio & NEXRAD.
Xpdr Ctrl
NOTE: Map overlay keys do not turn on or activate equipment necessary
Com/Nav
for the overlay to function. Map overlay keys may remain available even
if the information necessary for the overlay is not available. For example:
FPL
the Radar overlay key is available even if the radar is turned off.
Direct-To
NOTE: Map overlays for Stormscope or Traffic are prevented from
being overlaid on the main map without a heading source or while User
Proc
Navigation Angles are selected.
8.1.1.1
Wpt Info
The data overlayed on the map is displayed according the following priorities
Map (from highest to lowest):
1 - Traffic
Traffic
2 - Ownship
Terrain
3 - Flight Plan
Weather
4 - TAWS Alerts
5 - Stormscope
Nearest
6 - Obstacles
Services/
7 - Fuel Range Ring 16 - Cyclone
Music
Utilities
8 - TFRs
System
9 - Freezing Levels
Messages
Symbols
Appendix
Index
8-4
Map Overlays
Overlay Priority
10 - Cell Movement 19 - AIREPS
11 - Lightning
12 - METARs
13 - Winds Aloft
14 - SIGMETs
15 - AIRMETs
Warning
17 - County
Warning
18 - PIREPs
Table 8-1 Data Overlay Priority
GTN 625/635/650 Pilot's Guide
20 - City Forecast
21 - Surface
Analysis
22 - Airspace
23 - Waypoints
24 - Airways
25 - Turbulence
26 - Icing Potential
27 - Echo Tops
28 - NEXRAD
29- Cloud Tops
30 - IR Satellite
31 - SafeTaxi
32 - Terrain
33 - Base Map
34 - Topo
190-01004-03 Rev. P