BendixKing KTA 910 System KTA 970 - Manual (Page 10)

Rev 2
KTA 870/KMH 880 Pilot’s Guide
006-18265-0000
TAS Introduction
2
INTRODUCTION
TAS (an acronym formed from the phrase Traffic Advisory System) is an
airborne system used for detecting and tracking aircraft near your own
aircraft. TAS includes a TAS processor, antennas, a traffic display and a
means to control the system. The TAS processor and antennas detect
and track other aircraft by interrogating their transponders. Aircraft
detected, tracked, and displayed by TAS are referred to as Intruders.
TAS analyzes the transponder replies to determine range, bearing and
relative altitude, if the Intruder is reporting altitude. Should the TAS
processor determine that a possible collision hazard exists, it issues
visual and aural advisories to the crew. The visual advisory is shown by
symbols on the traffic display. Complementing the traffic display, TAS
provides appropriate synthesized voice announcements in the cockpit. A
complete list of traffic symbols and announcements is given in the
Theory of Operation and Symbology section of this Pilot’s Guide.
TAS is unable to detect any Intruding aircraft without an operating
transponder. TAS can detect and track aircraft with either an
ATCRBS (operating in Mode A or C) or Mode S transponders.
The traffic display shows the Intruding aircraft’s position. TAS identifies
the relative threat of each Intruder by using various symbols and colors.
The Intruder’s altitude, relative to your own aircraft’s altitude, is annunci-
ated if the Intruder is reporting altitude. A trend arrow is used to indicate
if the Intruder is climbing or descending more than 500 feet per minute.
TAS traffic may be displayed on a weather radar indicator, on a dedicat-
ed TAS display, on a TAS compatible EFIS Display Unit or a TA/VSI
(combination traffic display and vertical speed instrument).
TAS modes and functions are controlled by switches located on a TAS
control panel or in combination with various other controls. A description
of controls is given in the Controls and Displays section of this Pilot’s
Guide.
ATC procedures and the “see and avoid concept” will continue to be the
primary means of ensuring aircraft separation. However, if communica-
tion is lost with ATC, TAS adds a significant backup for collision avoid-
ance.