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Which of the following is the correct suffix for the ATC unit controlling the traffic using the movement area?
  • A
    DELIVERY
  • B
    RADAR
  • C
    GROUND
  • D
    APPROACH

ICAO Annex 10
Volume II

5.2.1.7 CALLING
5.2.1.7.1 Radiotelephony Call signs for Aeronautical Stations

Note.- The formation of call signs as specified in ITU Radio Regulations S19 Section III and Section VII.

5.2.1.7.1.1 Aeronautical stations in the aeronautical mobile service shall be identified by:

a) the name of the location; and
b) the unit or service available.

5.2.1.7.1.2 The unit or service shall be identified in accordance with the table below except that the name of the location or the unit/service may be omitted provided satisfactory communication has beeen established.

Unit/service availableCall sign suffix
area control centreCONTROL
approach controlAPPROACH
approach control radar arrivalsARRIVAL
approach control radar departuresDEPARTURE
aerodrome controlTOWER
surface movement controlGROUND
radar (in general)RADAR
precision approach radarPRECISION
direction-finding stationHOMER
flight information serviceINFORMATION
clearance deliveryDELIVERY
apron controlAPRON
company dispatchDISPATCH
aeronautical stationRADIO

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