Airservices is Australia's air navigation service provider - we provide air traffic control, aviation rescue and fire fighting and air navigation services.


We are investing approximately $1 billion over five years on upgrading and modernising our infrastructure and facilities. This includes air traffic control technology, new fire vehicles, stations and associated equipment.

Project updates

02 February 2018 | ILS Marker Beacons: Feedback Sought

The distance to touchdown information for the Instrument Landing System (ILS) distance has traditionally been provided by Marker Beacons installed at specific locations under the final approach path.

The purpose of the Middle Marker is to indicate that the pilot should make visual contact with the runway or abandon the approach, whilst the purpose of the Outer Marker is to provide height, distance, and equipment functional checks in the final stages of the approach.

Most Airservices Marker Beacons were installed prior to 2006 when ICAO standards specified a preference for Marker Beacons be provided with an ILS. Current ICAO standards permit the distance to touchdown information to be provided by either Distance Measuring Equipment (DME) or the Global Navigation Satellite System (GNSS) which provide a better method of performing an ILS approach when compared with Marker Beacons, because they provide a continuous measurement for the duration of the approach rather than at a single point.

Along with the United Kingdom and New Zealand, Airservices has been progressively fitting a low power frequency-paired DME to its ILS with a view to subsequently decommissioning Marker Beacons. The DME fitment is planned to be completed by the end of 2018, including:

  • Adelaide RWY 23

  • Alice Springs RWY 12

  • Brisbane RWY 01

  • Cairns RWY 15

  • Canberra RWY 35

  • Darwin RWY 29

  • Essendon RWY 26

  • Hobart RWY 12

  • Launceston RWY 32

  • Melbourne RWYs 16 and 27

  • Perth RWYs 21 and 24

  • Sydney RWYs 07, 16R and 34L

  • Townsville RWY 01

Whilst currently working with CASA’s National Operations and Standards division, Airservices is in parallel, seeking feedback on whether any Marker Beacons are still, or are expected to continue to be used for any specific reason. Please provide feedback by 31 March 2018. 

Feedback can be provided using the contact form, selecting “ILS Marker Beacons” as the subject.

23 February 2018 | UNICOM Training Package

Airservices is pleased to announce the development of a training package for Universal Communication (UNICOM) services as part of our ongoing commitment to promote and foster civil aviation.
The training package was developed to offer potential industry benefit by contributing to enriching the value of information available to non-controlled aerodromes.

The UNICOM traffic information service is provided to enhance pilots’ situational awareness and Airservices are proud to proactively contribute to building industry capability in managing safety, risk and traffic growth at regional aerodromes.

A copy of the training syllabus will be available through Airservices until 30 September 2018. For further information, or a copy of the training syllabus please contact

The information contained in the UNICOM training package is provided for general guidance and information purposes only. Airservices Australia does not represent that the materials will satisfy your regulatory obligations and recommends that you obtain your own independent professional advice regarding any applicable regulatory approvals or licenses required before relying on its contents.

The comprehensive suite of training materials and a facilitator guide have been provided to the Australian Airports Association. The Australian Airport Association is reviewing the training package and how to make the training available. The AAA may also be contacted on 02 6230 1110 or