Displaying Terrain-Svs Data - Garmin Cirrus Perspective SR20 Pilot's Manual

HAZARD AVOIDANCE
that normally affect pressure altitude sensors. GSL altitude does not require local altimeter settings to determine
MSL altitude. It is a widely-used MSL altitude source.
Terrain and obstacle databases are referenced to GSL. Using the GPS position and altitude, the Terrain-SVS
feature portrays a 3-D picture of the surrounding terrain and obstacles relative to the position and altitude of the
aircraft. GPS position and GSL altitude are used to calculate and predict the aircraft' s flight path in relation to
the surrounding terrain and obstacles. In this way, the pilot can view predicted dangerous terrain and obstacle
conditions.

DISPLAYING TERRAIN-SVS DATA

Terrain-SVS uses yellow (caution) and red (warning) to depict terrain and obstacles (with heights greater than
200 feet above ground level, AGL) alerts relative to aircraft altitude. Colors are adjusted automatically as the
aircraft altitude changes. The colors and symbols in Figure 6-96 and Table 6-11 and Table 6-12 are used to
represent terrain, obstacles, and potential impact points.
Unlighted Obstacle
< 1000' AGL > 1000' AGL < 1000' AGL > 1000' AGL
Cirrus Perspective
376
Figure 6-96 Terrain Altitude/Color Correlation for TERRAIN-SVS
Lighted Obstacle
Table 6-11 Terrain-SVS Obstacle Colors and Symbology
Potential Impact
Alert Type
Point Symbol
Warning
Caution
Table 6-12 Terrain-SVS Potential Impact Point Symbols with Alert Types
by Garmin – Pilot's Guide for the SR20/SR22SR22T
™
Obstacle Location
Red obstacle is above or within 100' below
current aircraft altitude
Yellow obstacle is between 100' and 1000'
below current aircraft altitude
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Example Annunciation
190-00820-08 Rev. A