Garmin GTN 750 Pilot's Manual Upgrade Supplement page 62

WATCH
Shaded
Area
12.4.7.2 Weather Messages
The weather alert feature may be used to indicate the presence of heavy
precipitation beyond the currently displayed range and 80 to 320 NM from the
aircraft' s present position. Weather alert targets appear as colored bands along
the outer range ring at the approximate azimuth of the detected returns.
If a weather alert is detected within ±10° of the aircraft heading, a message
will be displayed in the Messages page. Touch the MSG key to view messages.
If the antenna tilt is adjusted too low, a weather message can be generated by
ground returns. To avoid this issue, set the display range to less than 80 NM in
the terminal area.
190-01007-03 Rev. Q
Figure 12-69 Horizontal Scan with WATCH
Weather Alerts
Figure 12-70 Weather Alert Display
GTN 725/750 Pilot's Guide
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