10-13190-01007-03 Rev. C
GTN 725/750 Pilot’s Guide
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Charts
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
10.4.1 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 10-6 TAS Intruder Symbol Description
Relative Altitude (1200 ft Above)
Vertical Trend Arrow (Climbing)
Non-Threat Traffic
Figure 10-7 Intruder Type, Altitude, and Vertical Trend