Frequency congestion at Ballina, Lismore and Casino aerodromes

Closed 11 Jul 2021

Opened 9 Jun 2021


The Office of Airspace Regulation has identified that frequency congestion around Ballina, Lismore, Casino and Evans Head aerodromes could be reduced through the allocation of a separate Common Traffic Advisory Frequency (CTAF) for Lismore and Casino, or the establishment of a separate broadcast area.


Ballina aerodrome shares its radio frequency of 124.2 MHz with Lismore, Casino and Evans Head aerodromes. These aerodromes have a large mix of traffic and over the last decade have become busier. Changes have been made in the Ballina area to create a broadcast area to ensure radio calls are being made to help other flights with traffic awareness.

The OAR has visited the Ballina area on numerous occasions and has conducted extensive consultation with stakeholders. Through these visits, stakeholders have consistently raised their concerns regarding the radio congestion in the area as a result of the shared radio frequency.  


It is proposed that Lismore and Casino Airports be allocated their own discrete frequency to reduce the radio congestion described above. This proposal is separate to (and independent of) Airservices’ Surveillance Flight Information Service (SFIS) proposal which has been delayed.

Documents for review

A copy of the consultation is provided below. 

If you would like to provide further feedback, please email Feedback submitted by email will be considered but cannot be published publicly. 

Further information about airspace regulation and the airspace change process is available on the CASA website.

Why we are consulting

Why we are consulting

We are seeking your feedback regarding the allocation of a new frequency and other airspace issues in the Ballina region.

What Happens Next

Once the consultation has closed, we will register and review each submission received through the online response form. We will make all submissions publicly available on the Consultation Hub, unless you request that your submission remain confidential. We will also publish the final report on our website.

Information about how we consult and how to make a confidential submission is available on the CASA website.

To be notified of any future consultations, you can subscribe to our consultation and rulemaking mailing list.


  • Aerodrome operators
  • Instructors and flight examiners
  • Flight training organisations
  • Pilots
  • Sports aviation operators
  • Air traffic controller
  • Air traffic service providers
  • Part 173 of CASR Instrument flight procedure designers
  • Aerodrome owner/operators


  • Airspace and infrastructure