Garmin GTS 855 - Manual (Page 17)

13 190-00587-02 Rev. A Garmin GTS 8XX Series Traffic Advisory System
TAS/TCAS Alerts
When the GTS 8XX Series detects a new TA, the following occur:
• A single “Traffic!” voice alert is generated, followed by additional voice
information about the bearing, relative altitude, and approximate distance
from the intruder that triggered the TA. The announcement “Traffic!
12 o’clock, high, four miles,” would indicate the traffic is in front of own
aircraft, above own altitude, and approximately four nautical miles away.
• A TA is annunciated on the display as a TA symbol or annunciation. Refer
to the display pilot’s guide for details.
If the bearing of TA traffic cannot be determined, a yellow text banner will
be displayed on the Traffic Page instead of a TA symbol. The text will indicate
“TA” followed by the distance, relative altitude, and vertical trend arrow for the
TA traffic, if known.
A TA will be displayed for at least eight seconds, even if the condition(s) that
initially triggered the TA are no longer present.
No-Bearing TA Traffic
Annunciation
Figure 6 Traffic Annunciation
Bearing Relative Altitude Distance
“One o’clock” through
“Twelve o’clock”
or “No Bearing” “High”, “Low”, “Same
Altitude” (if within 200
feet of own altitude), or
“Altitude not available” “Less than one mile”,
“One Mile” through “Ten
Miles”, or “More than ten
miles”
Table 6 TA Descriptive Voice Announcements