Establishment and continuation of communications
- When establishing communication, the pilot should use the full call sign of both the aircraft and the aeronautical station.
Ex: Greenville Ground, OO-ABC,…
- “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.
In case of any doubt about the message transmitted, a repetition of the message shall be requested, either in full or in part.
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
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.
Greenville tower, OO-ABC, climbing 2000ft CORRECTION climbing 3000ft
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.
OO-ABC, contact Ground on 112.565