ACMA helps wireless mic users get ready for 1 January | ACMA

ACMA helps wireless mic users get ready for 1 January

Community groups and businesses can now easily find out what radio waves they should use for their wireless microphones with the Australian Communications and Media Authority launching an online channel finder tool.

‘Users simply type in the address of where they plan to use their device and it will identify what radio waves are available in their area,’ explained ACMA Chairman, Chris Chapman.

‘With less than five months to go before changes to wireless microphones take effect, we’re continuing to urge users to check their devices now to make sure they are ready for the change,’ he added.

From 1 January 2015, wireless microphones must not be used in the 694-820 megahertz (MHz) frequency range as this spectrum will be used from that date to deliver 4G mobile services. A popular short video explains the change and what users can do to prepare.

The ACMA has continued to listen to users’ concerns and has also revised regulations to allow wireless microphones to operate at indoor venues across the whole 520-694 MHz frequency range. This means that wireless microphones can now be used at indoor venues (such as theatres and sporting complexes) provided no interference is caused to television broadcasting services.

‘While these changes will be useful to all wireless microphone users, large-scale production companies, in particular, will benefit from this as they can continue to deliver high-quality audio experiences for theatre patrons, concert-goers and sporting buffs around the country,’ said Mr Chapman.

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For more information please see the backgrounder below or to arrange an interview please contact: Emma Rossi, media manager on (02) 9334 7719 or

Media release 43/2014 - 30 July


From 1 January 2015, wireless microphones must not be used in the 694-820 MHz frequency range—as this spectrum will be used to deliver 4G mobile services.

Wireless microphones are used by an enormous range of community groups and businesses in their day-to-day work, including schools, theatres, gyms and places of worship.

The ACMA’s stakeholder engagement plan sets out how the ACMA is helping these community groups and businesses ready themselves for this change.

The activities also complement the consumer education resources that have been developed by some of the leading wireless microphones suppliers.

Last updated: 23 November 2016