Pilot's Guide

15190-00587-02 Rev. B
Garmin GTS Traffic Systems
No-Bearing TA Traffic
Annunciation
Figure 7 No-Bearing TA
Off-Scale TAs
If a TA is beyond the currently-selected traffic display range, it is
typically shown with a half-circle icon at the edge of the display
range. Refer to the traffic display documentation for details regarding
off-scale TA depictions.
TA Aural Alerts
When a target becomes a TA, an aural alert message is played to advise the
crew. The aural alert may include an ATC-description of the target’s bearing,
altitude, and distance. For example, “Traffic! One o’clock, High, Two miles.”
The aural alert format is shown in the table below:
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 Aural Alerts
Optionally, TA aural alerts may be shortened under some circumstances. A
TA aural alert may be shortened to “Traffic, Traffic!” in the following cases:
• Another TA is already present, or
• The range to the TA target is less than 0.25 NM
NOTE: Shortened TA aural alerts are currently only available in GTS 825
and GTS 855 systems with system software version 2.20 or later.