Weather Radar Menu; Weather Attenuated Color Highlight (Watch™) - Garmin GTN 725 Pilot's Manual

12.4.8

Weather Radar Menu

Touch Menu to view the Weather Radar Menu.
Touch To Enable
Ground Clutter
Suppression
Touch To Enable
Turbulence
Detection
Touch To Enable
WATCH Shading
NOTE: Ground Clutter Suppression (GCS) and Turbulence Detection is
only supported for 12" or larger RADAR antennas. Turbulence Detection is
only supported out to a range of 40 NM and is disabled at display ranges
greater than 160 NM.
12.4.8.1 Weather Attenuated Color Highlight (WATCH™)
While in horizontal scan mode, this feature can be used as a tool to determine
areas of possible inaccuracies in displayed intensity due to weakening of the
radar energy. This weakening is known as "attenuation." The radar energy
weakens as it passes through areas of intense precipitation, large areas of lesser
precipitation, and distance. Issues with the radome will also attenuate the radar
energy. All these factors have an effect on the return intensity. The more energy
that dissipates, the lesser the displayed intensity of the return. Accuracy of the
displayed intensity of returns located in the shaded areas are suspect. Make
maneuvering decisions with this information in mind. Proper antenna tilt
management should still be employed to determine the extent of attenuation in
a shaded area.
1. While viewing the Weather Radar Menu, touch WATCH
Shading to toggle WATCH Shading.
190-01007-03 Rev. D
Touch To Enable
Weather Alerts
Figure 12-64 Weather Radar Menu Selections
Garmin GTN 725/750 Pilot's Guide
Touch To
Enable Altitude
Compensated Tilt
GWX 70
Touch To
Enable Antenna
Stabilization
GWX 68
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Appendix
12-51
Index