Garmin GTN 625 Pilot's Manual page 255

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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.

Non-Threat Traffic

(intruder is beyond 5 NM and greater than 1,200 ft vertical

Proximity Advisory (PA)

(intruder is within 5 NM and less than 1,200 ft vertical separation)

Traffic Advisory (TA)

(closing rate, distance, and vertical separation meet TA criteria)

Traffic Advisory Off Scale

Non-Threat Traffic

Figure 9-7 Intruder Type, Altitude, and Vertical Trend

190-01004-03 Rev. P

Table 9-6 TAS Intruder Symbol Description

GTN 625/635/650 Pilot's Guide

Relative Altitude (1,200 ft Above)

Vertical Trend Arrow (Climbing)

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