User's Manual

SYSTEM DESCRIPTION AND INSTALLATION MANUAL
TCAS 3000 Traffic Alert and Collision Avoidance System
34−43−23
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Page 1−54
15 Dec 2005
(2) Traffic Identification
(a) Traffic Advisory
Intruder aircraft entering the caution area, 20 to 48 seconds from the TCAS 3000
collision area are represented as a solid amber circle. This type of traffic results
in a traffic advisory.
(b) Resolution Advisory
Intruder aircraft entering the warning area, 15 to 35 seconds from the TCAS
3000 collision area are represented as a solid red square. This type of traffic
results in a resolution advisory.
(c) Proximate Traffic
Aircraft within 6.0 nautical miles and " 1200 feet vertically are represented as a
solid cyan diamond. Proximate traffic is shown to improve situational awareness
in the event of a potential conflict with higher priority RA or TA aircraft.
(d) Other Traffic
Any transponder replying to traffic not classified as an intruder or proximate
traffic, and within " 2700 feet vertically and the range of the display are
represented as hollow cyan diamonds (only in view with the traffic switch ON and
no TA or RA in process). The predicted flightpaths of proximate and other traffic
do not penetrate the collision area of the TCAS aircraft.
(3) Data Tags
A data tag, made up of a two−digit number, a plus (+) or a minus (−) sign, and may
also include an arrow, appears either above or below the intruder aircraft symbol.
The data tag appears in the same color as the advisory.
(a) Two−digit Number (Relative Altitude)
Represents the relative altitude difference, in hundreds of feet, either above or
below the TCAS aircraft of an intruder aircraft. For an intruder above the TCAS
aircraft, the data tag is placed above the traffic symbol and preceded by a plus
(+) sign; for one below, the tag is placed below the traffic symbol and be
preceded by a minus (−) sign.
(b) Plus (+) or Minus (−) Sign
Appears adjacent to the relative altitude number and indicates whether the
displayed aircraft is above (plus) or below (minus) the TCAS aircraft.
(c) Arrow
A vertical arrow is placed to the immediate right of the traffic symbol if the
intruder is either climbing (up arrow) or descending (down arrow) in excess of
500 feet per minute.