Displaying Htaws Data - Garmin G1000H Pilot's Manual

pressure, temperature, and lapse rates have fixed values), it is common for the baro-corrected altitude (as read
from the altimeter) to differ from the GSL altitude. This variation results in the aircraft' s GSL altitude differing
from the baro-corrected altitude.

DISPLAYING HTAWS DATA

HTAWS uses yellow (caution) and red (warning) to depict terrain and obstacle alerts relative to aircraft
altitude. Colors are adjusted automatically as the aircraft altitude changes. The colors and symbols in Figure
6-74 and Tables 6-7 and 6-8 are used to represent terrain, obstacles, and potential impact points.
Unlighted Obstacle
< 1000' AGL > 1000' AGL < 1000' AGL > 1000' AGL
190-01255-00 Rev. A
Figure 6-74 Terrain Altitude/Color Correlation for HTAWS
Lighted Obstacle
Table 6-7 HTAWS Obstacle Colors and Symbology
Potential Impact
Alert Type
Point Symbol
Table 6-8 HTAWS Potential Impact Point Symbols with Alert Types
Garmin G1000H Pilot's Guide for the Bell 407GX
™
Obstacle Location
Red obstacle is at or above current aircraft
altitude
Yellow obstacle is between 0' and 250'
below current aircraft altitude
Gray obstacle is 250' or more below
current aircraft altitude
Example
Annunciation
Warning
Caution
HAZARD AVOIDANCE
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