Garmin GPS 500 - Manual (Page 179)

GPS 500 Pilot’s Guide and Reference 11-3
SECTION 11
TAWS
11.2 TAWS PAGE
See Section 2.6 for a complete description of the TAWS
Page and its operation.
TAWS Symbols
The symbols and colors in Figure 11-1 and
Table 11-1 are used to represent obstacles and
potential impact points on the TAWS Page. TAWS
uses yellow (caution) and red (warning) to depict
terrain information relative to aircraft altitude.
Each color is associated with an alert severity level.
Terrain graphics and visual annunciations also use
these color assignments.
Potential Impact Point
Unlighted Obstacle
Projected Flight Path
1000 ft
100 ft Threshold
Terrain more than 1000 ft below the aircraft altitude (Black)
Terrain between 100 ft and 1000 ft below the
aircraft altitude (Yellow)
Terrain above or
within 100 ft
below the aircraft
altitude (Red)
Figure 11-1 Terrain Altitude/Color Correlation for TAWS
Unlighted Obstacle Lighted Obstacle Potential
Impact
Points
Obstacle Location Alert Level < 1000’
AGL
> 1000’
AGL
< 1000’
AGL
> 1000’
AGL
Obstacle Symbol
Obstacle above or within
100’ below current aircraft
altitude
WARNING
(Red)
Obstacle between 100’ and
1000’ below current aircraft
altitude
CAUTION
(Yellow)
Table 11-1 TAWS Terrain/Obstacle Colors and Symbology
NOTE: If an obstacle and the projected flight path
of the aircraft intersect, the display automatically
zooms in to the closest potential point of impact
on the TAWS Page.
190-00181-60 Rev. G