Garmin GTN 625 Pilot's Manual page 197

8.1.1.5 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, GTX 345, 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. Refer to 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.
8.1.1.6 Stormscope
The WX-500 Stormscope Weather Mapping Sensor is a passive weather
avoidance system that detects electrical discharges associated with thunderstorms
within a 200 NM radius of the aircraft. The Stormscope measures relative
bearing and distance of thunderstorm-related electrical activity and reports the
information to the display. Stormscope and XM Lightning are mutually exclusive.
NOTE: The Stormscope map overlay is only displayed if valid aircraft heading
information is available. Refer to the WX-500 Pilot's Guide for a detailed
description of the Stormcope WX-500.
190-01004-03 Rev. P
Figure 8-7 NEXRAD Map Overlay
(Optional)
®
GTN 625/635/650 Pilot's Guide
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
NEXRAD
Product Age
Wpt Info
NEXRAD
Weather
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
8-7