P202

Australian 2×1 Contesting Callsigns

Origins

An important part of Amateur Radio is international contesting, where operators participate in an on-air contests with rules and procedures where they attempt to make as many unique contacts as possible.  These can be very busy times under noisy conditions and a challenge is to be using a callsign that is easy to hear and understand.  Normal callsigns have a three letter suffix in the range VKnAAA to VKnZZZ (with some exceptions) Advanced operators may also be issued with 2-letter callsigns in the range VKnAA to VKnZZ.  This has been the case for many years.

From 2019 to 2021 RASA made submissions to the ACMA and the Australian Maritime College (AMC) for a special single letter callsign to be made available for contesters in the range VKnA to VKnZ.  These special Contesting callsigns are now known as 2×1 calls.

This plan was finally approved in October 2021.  The launch appeared in a special edition of the QTC magazine one month later.

This edition may be downloaded via this link: https://www.qtcmag.com/books/dmxa/#p=1

A Summary of the 2 x 1 Callsign usage

Note that references to the Australian Maritime College are now redundant as the AMC no longer makes Amateur Radio callsign allocations.  This is now managed directly by the ACMA

Original ACMA Announcement October 8, 2021

An Update by the ACMA

On November 15, 2022 the ACMA released a bulletin clarifying the use of these callsigns with a statement that after the callsign has been issued, that they do not regulate its use. 

Source:

https://vkradioamateurs.org/acma-does-not-regulate-the-use-of-2×1-callsigns/

Current (2024) ACMA Callsign Policy

Directives from the ACMA determine the details of the Australian callsign structure. 

This document says:

Source pdf:

https://www.acma.gov.au/sites/default/files/2024-09/Amateur%20radio%20call%20sign%20policy_September%202024.pdf

(2×1 callsign details appear on Page 9)