Garmin G3X Pilot's Manual page 233

ta a
lerting
The GTS 800 automatically adjusts its TA sensitivity level to reduce the likelihood
of nuisance TA alerting during flight phases likely to be near airports. The system
uses Level A TA sensitivity when the groundspeed is less than 120 knots; Level B TA
sensitivity applies in all other conditions.
Sensitivity Intruder Altitude
Level
A
A
B
B
190-01115-00 Rev. G
C
onDitionS
Available
Intruder closing rate provides less than 20
seconds of vertical and horizontal separation.
Or:
Intruder closing rate provides less than 20
Yes seconds of horizontal separation and vertical
separation is within 600 feet.
Or:
Intruder range is within 0.2 nm and vertical
separation is within 600 feet.
Intruder closing rate provides less than 15
No
seconds of separation.
Intruder closing rate provides less than 30
seconds of vertical and horizontal separation.
Or:
Intruder closing rate provides less than 30
Yes seconds of horizontal separation and vertical
separation is within 800 feet.
Or:
Intruder range is within 0.55 nm and vertical
separation is within 800 feet.
No Intruder range is less than 20 seconds.
TA Sensitivity Level and TA Alerting Criteria
Garmin G3X Pilot's Guide
Hazard Avoidance
TA Alerting Conditions
215