Ads-B Traffic Symbology; Traffic Advisories - Garmin Pilot User Manual

Fly
Symbol
T a
raffic dvisories
The GDL 39 automatically adjusts its Traffic Advisory (TA) sensitivity level to reduce
the likelihood of nuisance TA alerts during various phases of flight. TAs are issued for
traffic when they are predicted to be within a specified volume of airspace around your
aircraft in a specified amount of time. The protected volume and time interval varies
based on the current geodetic altitude and groundspeed. Thus, the protected volume
of airspace increases with altitude and ground speed. Refer to the following table for
details.
Altitude
(Geodetic)
Below 5,000
5,000-10,000
10,000-20,000
20,000-42,000
Above 42,000
114
Directional airborne Traffic Advisory (TA) with track vector. Points in the
direction of the aircraft track.
Directional off-scale airborne Traffic Advisory (TA). Points in the direction of
the aircraft track.
Ground traffic without directional information.
Directional surface traffic.
Non-directional non-aircraft ground traffic.
Directional non-aircraft ground traffic.

ADS-B Traffic Symbology

(Ta)
Look Ahead
Time (sec.)
30
40
45
48
48

Traffic Advisories

Garmin Pilot for iOS User's Guide
Description
Vertical
Separation (ft.)
+/-850
+/-850
+/-850
+/-850
+/-1,200
Horizontal
Separation (nm.)
.35
.55
.80
1.10
1.10
190-01501-00 Rev. C