Atpl - Vfr/ifr Comms - Definitions

Front 1

Advisory Area

Back 1

a designated area in which air traffic advisory service is available

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Advisory Route

Back 2

a designated route along which an air traffic advisory service is available

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Aerodrome

Back 3

any area of land or water which is designed, equipped, set apart or commonly used for affording facilities for the landing and departure of aircraft

Front 4

Aerodrome Control Service

Back 4

air traffic control service for aerodrome traffic

Front 5

Aerodrome Control Radio Station

Back 5

a station providing radio communication between an aerodrome control tower and aircraft or mobile aeronautical stations

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Aerodrome Traffic

Back 6

all traffic on the manouvering area of an aerodrome and all aircraft operating in the vicinty of an aerodrome

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Aerodrome Traffic Circuit

Back 7

the specified flight path to be flown by aircraft operating in the vicinity of an aerodrome

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Aerodrome Traffic Zone

Back 8

airspace of defined dimensions established around an aerodrome for the protection of aerodrome traffic

Front 9

Aeronautical Broadcasting Service

Back 9

a broadcasting service intended for the transmission of information related to air navigation

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Aeronautical Fixed Circuit

Back 10

a circuit forming part of of the Aeronautical Fixed Service

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Aeronautical Fixed Service

Back 11

a telecommunication service between specified fixed points provided primarily for the safety of air navigation and for the regular, efficient and economical operation of air services.

Front 12

Aeronautical Fixed Station

Back 12

a station in the aeronautical fixed service

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Aeronautical Fixed Telecommunication Network (AFTN)

Back 13

a worldwide sytem of aeronautical fixed circuits provided, as part of the aeronautical fixed service, for the exchange of messages and/or data between aeronautical fixed stations having the same or compatible communication characteristics

Front 14

AFTN Circuit

Back 14

a circuit forming part of the AFTN

Front 15

Aeronautical Mobile Service

Back 15

a mobile service between aeronautical stations and aircraft stations, or between aircraft stations, in which survival craft stations may participate; emergency psotion-indicating radio beacon stations may also participate in the service on designated distress and emergency frequencies

Front 16

Aeronautical Radio Navigation Service

Back 16

a radio navigation service intended for the benefit and safe operation of aircraft

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Aeronautical Telcommunications Log

Back 17

a record of the activities of an aeronautical telecommunications station

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Aeronautical Station

Back 18

a land station in the aeronautical mobile service and in certain circumstances may be placed aboard a ship of earth satellite

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AFTN Communication Centre

Back 19

an AFTN station whose primary function is the relay or retransmision of AFTN traffic from or to a number of other AFTN stations connected to it

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AFTN Destination Centre

Back 20

an AFTN station to which messages and/or data are adressed for processing for delivery to the addressee

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AFTN Origin Station

Back 21

an AFTN station where messages and/or digital data are accepted for transmission over the AFTN

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AFTN Station

Back 22

a station forming part of the AFTN and operating as such under the authority or control of a state

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Airborne Collision Avoidance System

Back 23

an aircraft based system based on SSR transponder signals which operates independantly of ground based equipment to provide advice to the pilot on potential conflicting traffic that are equiped with SSR transponders

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Air-Ground Control Radio Station

Back 24

an aeronautical telcommunication station having primary responsibility for handling communications pertaining to the operation and control of aircraft in a given area

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Air-Report

Back 25

a report from an aircraft in flight prepared in conformity with requirements for position and operational and/or meterological reporting

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Air-to-Ground Communication

Back 26

one-way communication from aircraft to stations or locations on the surface of the earth

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Aircraft Station

Back 27

a mobile station in the aeronautical mobile service on board an aircraft

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Air-Ground Comunications

Back 28

two-way communications between aircraft and stations of locations on the surface of the earth

Front 29

AIRPROX

Back 29

the code word used in an air traffic incident report to designate aircraft proximity

Front 30

Air Traffic

Back 30

all aircraft in flight or operating on the manoeurvring area of an aerodrome

Front 31

Air Traffic Control Clearance

Back 31

authorisation for an aircraft to proceed under conditions specified by an air traffic control unit

Front 32

Air Traffic Service

Back 32

a generic term meaning varaciously, flight information service, alerting service, air traffic advisory service, air traffic control service, approach control service or aerodrome control service

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Airway

Back 33

a control area or part of a control area established in the form of a corridor equipped with radio navigation aids

Front 34

Altitude

Back 34

the vertical distance of a level, a point or an object considered a point, measured from mean sea level - QNH

Front 35

Approach Control Service

Back 35

air traffic control service for arriving or departing flights

Front 36

Area Control Centre

Back 36

a term used in the UK to describe a unit providing enroute air traffic control services

Front 37

ATS Direct Speed Circuit

Back 37

an Aeronautical Fixed Service telephone circuit for direct exchange of information between Air Traffic Service units

Front 38

Automatic Terminal Information Service (ATIS)

Back 38

the provision of a current, routine information to arriving and departing aircraft by means of continuous and repetitive broadcasts throughtout the day or specified parts of the day

Front 39

Base Turn

Back 39

a turn executed by an aircraft during the initial approach between the end of the outbound track and the beginning of the intermediate or final approach track

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Blind Transmision

Back 40

a transmission from one station to another in circumstances where two-way communication cannot be established but where it is believed the called station is able to receive the transmision

Front 41

Broadcast

Back 41

a transmission of information relating to air navigation that is not addressed to a specific station or stations

Front 42

Clearnace Limit

Back 42

the point ti which an aircraft is granted an air traffic control clearance

Front 43

Communication Centre

Back 43

an aeronautical fixed station which relays telecomunication traffic from or to a number of other aeronautical fixed stations directly connected to it

Front 44

Control Area

Back 44

a controlled airspace extending upwards from a specified limit above the earths surface

Front 45

Controlled Airspace

Back 45

an airspace of defined dimensions within which an air traffic control service is provided to IFR flights and to VFR flights in accordnace with the airspace classification

Front 46

Control Zone

Back 46

a controlled airspace extending upwards from the surface of the earth to a specified upper limit

Front 47

Crusing Level

Back 47

a level during a significant portion

Front 48

Descision Altitude/Height

Back 48

a specified altitude/height in a precision aprroach at which a missed approach must be initiated if the required visual references to continue the approach to land have not been established

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Duplex

Back 49

a method in which telcommunications between two station can take place in both directions simultaneously

Front 50

Elevation

Back 50

the vertical distance of a point or level on, or affixed to, the surface of the earth measured from mean sea level

Front 51

Estimated Time of Arrival

Back 51

the time at which the pilot estimates that the aircraft will be overhead a specific location

Front 52

Expect Approach Time

Back 52

the time at which ATC expects that an arriving aircraft, following a delay, will leave the holding point to commence an approach for landing

Front 53

Flight Information Centre

Back 53

a unit established to promote flight information services and alerting services

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Flight Level

Back 54

a surface of constant atmospheric pressure, which is related to a specific pressure datum, 1013.2mb, and is separated from other such surfaces by specific pressure intervals

Front 55

Flight Plan

Back 55

specified information provided to air traffic service units, relative to an intended flight of an aircraft, flight plans fall into two categories which are full or abbreviated.

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General Air Traffic

Back 56

flights operating in accordance with civil air traffic procedures

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Ground-to-Air Comunications

Back 57

one-way communication from stations or locations on the surface of the earth to aircraft

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Heading

Back 58

the direction in which the longditudal axis of the aircraft is pointing usually expressed in degrees from North (true, magnetic, compass or grid)

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Holding Point

Back 59

a specified location, identified by usual or other means in the vicinity of which the position of an aircraft in flight is maintained in accordance with ATC clearances

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IFR flight

Back 60

a flight conducted in accordordance with instrument flight rules

Front 61

Instrument Meteorological Conditions

Back 61

meteorological conditions expressed in terms of visibility, vertical and horizontal distance from cloud, less than the miminma specified for visual meteorological conditions

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Interpilot air-to-air communications

Back 62

two-way communication on a designated air-to-air channel to enable aircraft engaged in flights in remote or oceanic areas out of range of CHF ground stations to exchange operational information

Front 63

Known Traffic

Back 63

traffic, the current flight details of which are known to controller concerned through direct communication or co-ordination

Front 64

Level

Back 64

a generic term relating to the various positions of an aircraft in flight and meaning variously height, altitude or flight level

Front 65

Manouvering Area

Back 65

that part of an aerodrome used for the take-off, landing and taxying of aircraft, excluding the aprons

Front 66

Minimum Descent Altitude/Height

Back 66

an altitude/height in a non-precision or circling approach below which descent must not be made without visual reference

Front 67

Missed Approach Point

Back 67

the point in an instrument approach at or before which the prescribed missed approach procedure must be initiated in order to ensure that the minimum obstacle clearance is not infringed

Front 68

Missed Approach Procedure

Back 68

the procedure to be followed if the approach cannot be continued

Front 69

Mobile Surface Station

Back 69

a station in the aeronautical telecommunications service, other than an aircraft station, intended to to be used while in motion or during halts at unspecified points

Front 70

Movement Area

Back 70

the manouvering area and the aprons

Front 71

Network Station

Back 71

an aeronautical station forming part of a radiotelephony network

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Non-Network Communications

Back 72

radiotelephony communications conducted by a station of the aeronautical mobile service, other than those conducted as part of a radio telephony network

Front 73

Procedure Turn

Back 73

a manoeuvre in which a turn is made away from a designated track followed by a turn in the opposite direction to permit the aircraft to intercept and proceed along the reciprocal of the original track

Front 74

Radar Approach

Back 74

an approach, executed by an aircraft, under the direction of a radar controller

Front 75

Radar Contact

Back 75

the situation which exists when the radar return or radar position symbol of a particualr aircraft is seen and identiifed on a radar display

Front 76

Radar Identification

Back 76

the process or correlating a particualr radar return or radar position symbol with a specific aircraft

Front 77

Radar Vectoring

Back 77

provision of navigation guidance to an aircraft in the form of specific headings, based on the use of radar

Front 78

Radio Direction-Finding Station

Back 78

a radio station intended to determine only the direction of other stations by means of transmissions from the latter

Front 79

Radiotelephony Network

Back 79

a group of radiotelephony aeronautical stations which operate on and guard frequencies from the same family and which support each other in a defined manner to ensure maximum dependability of air-ground communications and dissemination of air-ground traffic

Front 80

Readback

Back 80

a procedure whereby the receiving station repeats a received message or an appropriate part thereof back to the transmitting station so obtain confirmation of correct reception

Front 81

Regular Station

Back 81

a station selected from those form an enroute air-ground radiotelephony network to communicate with or to intercept communications from aircraft in normal conditions

Front 82

Reporting Point

Back 82

a specified geographical location in relation to which the position of an aircraft can be reported

Front 83

Runway

Back 83

a defined rectangualr area on a land aerodrome prepared for the landing and taking-off of aircraft

Front 84

Runway Visual Range

Back 84

the range over which the pilot of an aircraft on the centreline of a runway can expect to see the runway surface markings, or the lights delineeating the runway or it's centreline

Front 85

Signal Area

Back 85

an area on an aerodrome used for the display of ground signals

Front 86

SIGMET Information

Back 86

information issued by a meteorological watch office concerning the occurence or expected occurence of specified en-route weather phenomena which may affect the safety of aircraft operations

Front 87

Simplex

Back 87

a method in which telecomunication between stations happens in one direction at a time

Front 88

Telcommunication

Back 88

any transmission, emission or reception of signs, signals, writing, images and sounds or intelligance of any nature by wire, radio, optical or other electromagnetic means

Front 89

Terminal Control Area

Back 89

a control area normally established at the confluence of airways in the vicinity of one or more major aerodromes

Front 90

Threshold

Back 90

the beginning of that postion of the runway suitable for the landing of aircraft

Front 91

Traffic Alert and Collision Avoidance System (TCAS)

Back 91

another definition of Airborne Collision Avoidance System

Front 92

Tributary Station

Back 92

an aeronautical fixed station that may receive or transmit messages and/or digital data but which does not relay except for the purpose of serving similar stations connect through it to a communications centre

Front 93

VFR flight

Back 93

a flight conducted in accordance with visual flight rules

Front 94

Visual Meteorological Conditions

Back 94

meteorological conditions expressed in terms of visibility, vertical and horizontal distance from cloud, equal to or better than specified minima

Front 95

Waypoint

Back 95

a specific geographical position used to define an area navigation route or the flight path of an aircraft empoyed in area navigation