Callsigns are a unique series of letters and/or numbers allocated to a radiocommunications user to identify the station from which they are transmitting.
The licensee of an Earth, Earth receive, Space, and Space receive station must use a form of identification that clearly identifies that station, or a callsign allocated by the ACMA, at the start of each transmission or series of transmissions.
Callsigns allocated to stations have to conform to International Telecommunication Union Radio Regulations and must be used for all on-air communications including testing.
|Licence type||Callsign template||Examples|
|Earth||AXmn, Axmnn||AX82 or AX205|
|Earth Receive||AXmn, Axmnn, VZmnn, VNmnn, VMmnn||AX82 or AX205|
|Space Receive||An or Bn||A1 or B2|
|Space||An or Bn||A1 or B2|
m equates to a number in the range 2-9
n equates to a number in the range 0- 9