Terrain; Nexrad (Optional) - Garmin GTN 625 Pilot's Manual

8.1.1.3

Terrain

The Terrain Data option selects whether Terrain Data is shown on the Map
page. Terrain and NEXRAD weather may not be displayed at the same time.
Selecting one will disable the other. A Terrain icon will indicate that the Terrain
overlay has been selected. Terrain overlay colors may or may not be shown
depending on the altitude of the aircraft.
1. While viewing the Map Menu, touch Map Overlays key, and
then the Terrain Map Overlay key to toggle the view of Terrain
data.
Figure 8-6 Map Menu Terrain Map Overlay On Selection
2. The colors of the terrain are referenced to your aircraft altitude.
8.1.1.4

NEXRAD (Optional)

The NEXRAD menu option allows the display of NEXRAD Precip weather
information overlayed on the Map page. Terrain and NEXRAD Precip weather
may not be displayed at the same time. Selecting one will disable the other.
NEXRAD Precip weather is an optional feature that requires the installation of
a GDL 69/69A, GDL 88, or GSR 56 and an appropriate Weather subscription.
Only one weather source can be displayed at a time (i.e. FIS-B and XM cannot be
displayed on the map simultaneously. See the Weather section for more detail.
While viewing the Map Menu, touch the NEXRAD Map Overlay
key to toggle the view of NEXRAD weather data.
Figure 8-7 Map Menu NEXRAD Map Overlay On Selection
190-01004-03 Rev. F Garmin GTN 625/635/650 Pilot's Guide
Red Terrain - At or
Within 100 ft below
Aircraft Altitude
Yellow Terrain - Between
100 ft and 1000 ft below
current aircraft altitude
Icon Shows Terrain Overlay
Is Active
NEXRAD
Product Age
NEXRAD
Weather
Foreword
Getting
Started
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
8-5