Cruise / Enroute 5-37
SV-TA can be triggered by either terrain or obstacles.
Any terrain that is within a 10nm radius of aircraft position and
between 100’ below aircraft altitude and 1000’ below aircraft
altitude will generate yellow hatched indications on the SynVis
scene and the map pages. Any terrain that is within a 10nm
radius of the aircraft position and is 100’ below aircraft to anything
above aircraft altitude will generate red hatched indications on the
SynVis scene and the map pages.
Any obstacle in the database within a 5nm radius of the aircraft
position and whose top is within 2000’ vertically (above or below)
of the aircraft altitude will generate a cyan (blue) threat bubble
over the obstacle on the SynVis scene. Obstacles inside a 3nm
radius of the aircraft position and whose top is between 100’
below aircraft altitude and 1000’ below aircraft altitude will
generate a yellow threat bubble over the obstacle on the SynVis
scene and the map pages. Obstacles inside a 1.5nm radius of
the aircraft position and whose top is between 100’ below aircraft
to anything above aircraft altitude will generate a red threat
bubble over the obstacle on the SynVis scene and the map
pages.
Yellow or red highlighted obstacles on the SynVis scene will also
display the MSL altitude of the obstacle top.
Obstacle Threat Depiction
Obstacle-induced SV-TA awareness functions cannot be turned
off. Terrain-induced SV-TA awareness functions can be turned off
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