Communications

Establishment and continuation of communications

Initial call

  1. When establishing communication, the pilot should use the full call sign of both the aircraft and the aeronautical station.
    Ex: Greenville Ground, OO-ABC,…
  2. “ALL STATIONS” shall be used when a ground station wishes to broadcast information or when an aircraft wishes to broadcast information to aircraft in its vicinity. No reply is required to such general calls unless individual stations are asked to acknowledge receipt.

Acknowledgement of receipt: aircraft call sign + ‘ROGER’

Say again

In case of any doubt about the message transmitted, a repetition of the message shall be requested, either in full or in part.

Phrase

Meaning

SAY AGAIN

Repeat the entire message

SAY AGAIN … (item)

Repeat the specific item

SAY AGAIN ALL BEFORE…

Repeat the part of the message before the first word satisfactorily received

SAY AGAIN ALL AFTER…

Repeat the part of the message after the last word satisfactorily received

SAY AGAIN ALL BETWEEN… AND…

Repeat the part of the message not received

Correction

When an error is made in a transmission, the word ‘CORRECTION’ shall be spoken, the correct group or phrase repeated and then the correct version transmitted.

Example:

Greenville tower, OO-ABC, climbing 2000ft CORRECTION climbing 3000ft

If the correction is best made using the entire message, pilot shall use ‘CORRECTION I SAY AGAIN’ before transmitting the whole message again.

Transfer of communications

The aircraft shall be advised by the appropriate aeronautical station to change from one radio frequency to another.

In the absence of such advice, the aircraft shall notify the aeronautical station before such a change takes place.

Example:

OO-ABC, contact Ground on 112.565