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(See USER REQUEST EVALUATION TOOL.)
AUTOMATED PROBLEM DETECTION INHIBITED
AREA (APDIA)− Airspace surrounding a
terminal area within which APD is inhibited for all
flights within that airspace.
AUTOMATED RADAR TERMINAL SYSTEMS−
The generic term for the ultimate in functional
capability afforded by several automation systems.
Each differs in functional capabilities and equipment.
ARTS plus a suffix roman numeral denotes a specific
system. A following letter indicates a major modification
to that system. In general, an ARTS displays
for the terminal controller aircraft identification,
flight plan data, other flight associated information;
e.g., altitude, speed, and aircraft position symbols in
conjunction with his/her radar presentation. Normal
radar co-exists with the alphanumeric display. In
addition to enhancing visualization of the air traffic
situation, ARTS facilitate intra/inter-facility transfer
and coordination of flight information. These capabilities
are enabled by specially designed computers
and subsystems tailored to the radar and communications
equipments and operational requirements of
each automated facility. Modular design permits
adoption of improvements in computer software and
electronic technologies as they become available
while retaining the characteristics unique to each
system.
a. ARTS II. A programmable nontracking, computer-
aided display subsystem capable of modular
expansion. ARTS II systems provide a level of
automated air traffic control capability at terminals
2/17/05 Pilot/Controller Glossary
PCG A−15
having low to medium activity. Flight identification
and altitude may be associated with the display of
secondary radar targets. The system has the capability
of communicating with ARTCCs and other ARTS II,
IIA, III, and IIIA facilities.
b. ARTS IIA. A programmable radar-tracking
computer subsystem capable of modular expansion.
The ARTS IIA detects, tracks, and predicts secondary
radar targets. The targets are displayed by means of
computer-generated symbols, ground speed, and
flight plan data. Although it does not track primary
radar targets, they are displayed coincident with the
secondary radar as well as the symbols and alphanumerics.
The system has the capability of communicating
with ARTCCs and other ARTS II, IIA, III, and
IIIA facilities.
c. ARTS III. The Beacon Tracking Level of the
modular programmable automated radar terminal
system in use at medium to high activity terminals.
ARTS III detects, tracks, and predicts secondary
radar-derived aircraft targets. These are displayed by
means of computer-generated symbols and alphanumeric
characters depicting flight identification,
aircraft altitude, ground speed, and flight plan data.
Although it does not track primary targets, they are
displayed coincident with the secondary radar as well
as the symbols and alphanumerics. The system has
the capability of communicating with ARTCCs and
other ARTS III facilities.
d. ARTS IIIA. The Radar Tracking and Beacon
Tracking Level (RT&BTL) of the modular,
programmable automated radar terminal system.
ARTS IIIA detects, tracks, and predicts primary as
well as secondary radar-derived aircraft targets. This
more sophisticated computer-driven system upgrades
the existing ARTS III system by providing
improved tracking, continuous data recording, and
fail-soft capabilities.
AUTOMATED TERMINAL TRACKING SYSTEM
(ATTS)− ATTS is used to identify the numerous
tracking systems including ARTS IIA, ARTS IIE,
ARTS IIIA, ARTS IIIE, STARS, and MEARTS.
AUTOMATED UNICOM− Provides completely
automated weather, radio check capability and airport
advisory information on an Automated UNICOM
system. These systems offer a variety of features,
typically selectable by microphone clicks, on the
UNICOM frequency. Availability will be published
in the Airport/Facility Directory and approach charts.
AUTOMATIC ALTITUDE REPORT−
(See ALTITUDE READOUT.)
AUTOMATIC ALTITUDE REPORTING− That
function of a transponder which responds to Mode C
interrogations by transmitting the aircraft’s altitude
in 100-foot increments.
AUTOMATIC CARRIER LANDING SYSTEM−
U.S. Navy final approach equipment consisting of
precision tracking radar coupled to a computer data
link to provide continuous information to the aircraft,
monitoring capability to the pilot, and a backup
approach system.
AUTOMATIC DEPENDENT SURVEILLANCE
(ADS) [ICAO]− A surveillance technique in which
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