104-108 MATS Glossary Flashcards
Altitude Assignment
ATS SURVEILLANCE SERVICE
A term used to indicate a service provided directly by means of an ATS surveillance system.
ATS SURVEILLANCE SYSTEM
A generic term meaning variously, ADS-B, PSR, SSR or any comparable ground-based system that enables the identification of aircraft
A comparable ground-based system is one that has been demonstrated, by comparative assessment or other methodology, to have a level of safety and performance equal to or better than monopulse SSR.
ATS SURVEILLANCE
All methods of remotely sensing aircraft using certified/commissioned electronic equipment including PSR, SSR, MLAT, ADS-B, without the benefit of visual observation.
ATS SURVEILLANCE CONTROL SERVICE
An air traffic control service provided with information derived from ATS surveillance equipment sources
Example of ATS surveillance control service: turning an aircraft 20 degrees to gain separation between it and another aircraft.
ATS SURVEILLANCE SEPARATION
Spacing of aircraft in accordance with established minima, based on information derived from ATS surveillance.
Example of ATS surveillance separation: Maintaining 1000 feet vertical separation between co-located PPSs, until 5 miles between the centres of the PPSs is achieved.
ATS SURVEILLANCE ADVISORY
Advice and information based on ATS surveillance observations.
Example of an ATS surveillance advisory: giving advice to an aircraft about weather observed on the situation display (if so equipped).
ATS SURVEILLANCE MONITORING
The use of ATS surveillance for providing aircraft with information and advice relative to significant deviations from their normal flight path.
Example of ATS surveillance monitoring: you notice an aircraft off course, you query the aircraft, and assist it back on course.
NAVIGATIONAL ASSISTANCE
The provision of position information, vectors, or track and ground speed checks.
DCPC (DIRECT CONTROLLER-PILOT COMMUNICATIONS)
Communication between a controller and a pilot without resort to a relay through another unit.
SEPARATION
The spacing between aircraft, altitudes, or tracks
(ALT) ALTITUDE
The vertical distance of a level, a point or an object considered as a point, measured from mean sea level. Also called: indicated altitude
TRACK
The projection on the earth’s surface of the path of an aircraft, the direction of which path at any point is usually expressed in degrees from true, magnetic, or grid north
CONTROLLED AIRSPACE
An airspace of defined dimensions within which ATC service is provided.
RSE (radar site equipment)
A radar owned and operated by NAV CANADA
RADAR
A radio detection device that provides information on range, azimuth, or elevation of objects, of two types:
* Primary surveillance radar
* Secondary surveillance radar
PSR (PRIMARY SURVEILLANCE RADAR)
A radar system that detects objects by means of reflected radio signals. Also called: primary radar
SSR (SECONDARY SURVEILLANCE RADAR)
A radar system that requires complementary aircraft equipment (transponder). The transponder generates a coded reply signal in response to transmissions from the ground station (interrogator). Since this system relies on transponder-generated signals rather than signals reflected from the aircraft, as in primary surveillance radar, it offers significant operational advantages such as increased range and positive identification. Also called: secondary radar
LINKAGE
An automated or manual function that matches ATS surveillance data with flight plan data.
ADS-B (AUTOMATIC DEPENDENT SURVEILLANCE - BROADCAST)
A means by which aircraft, aerodrome vehicles, and other objects can automatically transmit and/or receive data such as identification, position, and additional data, as appropriate, in a broadcast mode via a data link.
PPS (PRESENT POSITION SYMBOL)
The visual indication, in symbolic form, on a situation display, of the position of an aircraft, aerodrome vehicle, or other object obtained after automatic processing of positional data.
CJS (CONTROLLER JURISDICTION SYMBOL)
Symbol that identifies a sector.
READBACK
A procedure whereby the receiving station repeats a received message or an appropriate part thereof to the transmitting station so as to obtain confirmation that the message was received correctly.
FL (FLIGHT LEVEL)
An altitude expressed in hundreds of feet indicated on an altimeter set to 29.92 inches of mercury or 1013.2 hectopascals.
AIR TRAFFIC CONTROL CLEARANCE
An authorization issued by an ATC unit for an aircraft to proceed within controlled airspace in accordance with the conditions specified by that unit.
AIR TRAFFIC CONTROL INSTRUCTION
A directive issued by an air traffic control unit for air traffic control purposes.
NAVIGATIONAL ASSISTANCE (Terminav)
The provision of position information, vectors, or track and ground speed checks.
TAS (TRUE AIRSPEED)
The airspeed of an aircraft relative to undisturbed air. It is used primarily in flight planning and the enroute portion of flight. When used in pilot/controller communications, it is referred to as “true airspeed” and not shortened to “airspeed.”
MACH NUMBER
The ratio of the speed of an object to the local speed of sound.
SAME TRACK
In the application of separation, expression used by ATC to indicate identical tracks or tracks that converge or diverge at an angle of 1° to 44° inclusive.
Ground Speed (GS)
is the speed of the aircraft over the surface of the earth.
NON-ATS SURVEILLANCE ROUTE
A route on which an aircraft can determine its position, track, and, consequently, the minimum IFR altitude without the benefit of ATS surveillance information
VECTOR
A heading given by a controller to a pilot to provide navigational guidance
HEADING
The direction in which the longitudinal axis of an aircraft is pointed, usually expressed in degrees from north (true, magnetic, compass, or grid north).
TRACK
The projection on the earth’s surface of the path of an aircraft, the direction of which path at any point is usually expressed in degrees from true, magnetic, or grid north.
TRAFFIC INFORMATION
Information issued by ATS to pilots regarding other known or observed traffic that may be in such proximity to their position or intended route as to warrant their attention.
