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9-11190-01004-03 Rev. B
Garmin GTN 625/635/650 Pilot’s Guide
Foreword
Getting
Started
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Music
Utilities
System
Messages
Symbols
Appendix
Index
9.2.1 TAS Symbology
Traffic Advisory System (TAS) is designed to help in detection and avoidance
of other aircraft. TAS uses an on-board interrogator-processor to detect traffic.
Only aircraft with operating transponders will be detected. Traffic is displayed
according to TCAS symbology using four different symbols.
TAS Symbol Description
Non-Threat Traffic
(intruder is beyond 5 NM and greater than 1200 ft vertical
separation)
Proximity Advisory (PA)
(intruder is within 5 NM and less than 1200 ft vertical separation)
Traffic Advisory (TA)
(closing rate, distance, and vertical separation meet TA criteria)
Traffic Advisory Off Scale
Table 9-6 TAS Intruder Symbol Description
Relative Altitude (1200 ft Above)
Vertical Trend Arrow (Climbing)
Non-Threat Traffic
Figure 9-5 Intruder Type, Altitude, and Vertical Trend