Phraseology RTF Callsigns papavasileiouatm 6 1 1 Objectives

Phraseology RTF Callsigns papavasileiou-atm 6. 1 1

Objectives Ø To state the different types of aircraft RTF callsigns; Ø To explain the circumstances in which they may be abbreviated Ø To explain the methods of establishment of RTF communications papavasileiou-atm 6. 1 2

Calling Procedures Callsigns of aeronautical stations in the aeronautical mobile service shall be identified by: a) name of the location, and b) unit or service available papavasileiou-atm 6. 1 3

Units/Services (1) The unit/service shall be identified as follows (except that the name may be omitted once satisfactory comms have been established): Unit/Service Area Control Centre Approach Control Approach Radar Arrivals Approach Radar Departures papavasileiou-atm 6. 1 Callsign Suffix Control Approach Arrival Departure 4

Units/Services (2) Unit/Service Aerodrome Control Surface Movement Control Radar (In General) Precision Approach Radar Flight Information Service Clearance Delivery Apron Control papavasileiou-atm 6. 1 Callsign Suffix Tower Ground Radar Precision Information Delivery Apron 5

Aircraft Callsigns Aircraft callsigns shall be one of the following: Type a) Characters corresponding to the aircraft registration marking e. g. N-52876 or D-ABCD Note: The name of the aircraft manufacturer or name of aircraft model may be used as a prefix to a) above. e. g. Cessna F-ABCD Concord G-BCCC papavasileiou-atm 6. 1 6

Aircraft Callsigns (2) Type b) Type c) RTF designator of the AOA, followed by last 4 digits of the a/c registration e. g. Varig-PVMA RTF designator of the AOA, followed by the flight identification e. g. BAW 851 (“Speedbird 851”) Note: Military acft may use a codeword followed by alphanumerics! papavasileiou-atm 6. 1 7

Abbreviated Aircraft Callsigns Type a) First character of registration + at least the last two characters of callsign. e. g. N-76 or N-876 Type b) RTF designator of the AOA, aircraft manufacturer or model + at least the last two characters of the callsign. e. g. Varig-MA or Varig -VMA Cessna-CD or Cessna-BCD Concord-CC or Concord-CCC papavasileiou-atm 6. 1 8

Aircraft Callsigns (3) Type c) No abbreviated form. e. g. BAW 851 can never be abbreviated - must always be “Speedbird 851” papavasileiou-atm 6. 1 9

RTF Procedures (1) An aircraft shall not change its RTF c/s during flight, except temporarily on the instruction of an ATC unit, in the interest of safety. papavasileiou-atm 6. 1 10

RTF Procedures (2) Except for reasons of safety no transmissions shall be directed to an aircraft during takeoff, during the last part of the final approach or during the landing roll. papavasileiou-atm 6. 1 11

Establishment of RTF Comms Calling Procedure 1) Callsign of station called 2) Callsign of station calling e. g: “Maastricht Radar - N 755 ER” papavasileiou-atm 6. 1 12

Establishment of RTF Comms (2) Reply Procedure 1) Callsign of station called 2) Callsign of answering station 1 3) Invitation to proceed with TX e. g. “N 755 ER Maastricht Radar go ahead” 2 Note 1: Use of full call signs on first contact. Note 2: Not for use in TWR operations papavasileiou-atm 6. 1 13

Establishment of RTF Comms (3) Comms shall commence with a call & reply to establish contact, Ø except that when it is certain that the station called will receive the call, the calling station may TX without waiting for a reply from the station called. papavasileiou-atm 6. 1 14

Establishment of RTF Comms (4) When a station is called but it is uncertain of the identification of the calling station, it should reply by TX the following: e. g. “station calling……. (Maastricht Radar) say again your callsign” papavasileiou-atm 6. 1 15

Subsequent RTF Comms (1) Ø Abbreviated RTF callsigns shall be used only after satisfactory comms have been established and provided that no confusion is likely to arise. Ø An aircraft shall use its abbreviated c/s only after it has been addressed in this manner by the aeronautical station. papavasileiou-atm 6. 1 16

Subsequent RTF Comms (2) After contact has been established, continuous two-way communication shall be permitted without further identification or call until termination of the contact papavasileiou-atm 6. 1 17

Subsequent RTF Comms (3) To avoid any possible confusion, when ATC clearances are issued, controllers and pilots shall always add the callsign of the aircraft to which the clearance applies. e. g. “AFR 211 cleared to London Heathrow via UL 400, climb to FL 320. ” papavasileiou-atm 6. 1 18

Exchange of Communication Ø Comms shall be concise and unambiguous, using standard phraseology whenever available Ø The receiving station shall make certain the message has been received correctly before acknowledging receipt Ø The acknowledgment of receipt of a message by an aircraft shall comprise the aircraft call sign e. g. “Left heading 245, AFR 211” papavasileiou-atm 6. 1 19

End of Communication A radio conversation shall be terminated by the receiving station using its own callsign. e. g. “……. . , AFR 211” papavasileiou-atm 6. 1 20

IANS ATC The End papavasileiou-atm 6. 1 21