Last night I attended the South Coast ARC and delivered a presentation on my recent WWFF/IOTA DXpedition to Flinders Island.

Thanks for the invite. It was a pleasure to catch up with all those down south. There were about 15 people in attendance.

Last night (Thursday 5th September 2024) I tuned in to Air Traffic Control on 8822 kHz and 8866 kHz.

For civil aviation HF communication, Australia is divided into 6 HF network areas known as Regional Domestic Air Route Areas (RDARA’s) and Major World Air Route Areas (MWARA’s). These are FLIGHTWATCH frequencies and are all controlled from Brisbane, Queensland. (Swld.com 2024)

Above:- RDARA areas.

The 8822 kHz frequency is the Southern area.

The 8866 kHz is in the Brisbane International area.

Below is a short video showing my reception.

References.

1. Shortwave Listeners Delight – SWLD (2014). SWLD – Shortwave Listeners Delight – Civilian HF Aviation Flightwatch Frequencies Australia. [online] Swld.com.au. Available at: https://www.swld.com.au/pages/air_civil_aus.htm [Accessed 6 Sep. 2024].‌

Last night (Thursday 5th September 2024) I tuned in to Air Traffic Control on 11285 kHz.

The 11285 kHz frequency is part of the Major World Air Route Areas (MWARA), which support HF Radio communications to aircraft outside of VHF range. The transmissions operate on Upper Sideband (USB). The world is divided into 11 areas. (Wiki 2024)

Colombo SRI LANKA and Chennai INDIA operate on the same frequency of 11285 kHz.

Above:- Map showing the location of Chennai India and Colombo Sri Lanka. Map c/o Google Maps.

Below is a short video of my reception.

References.

1. HF Radio – Major World Air Route Areas – MWARA. (2024). HF Radio – Major World Air Route Areas – MWARA. [online] Available at: https://aeronauticalradio.weebly.com/ [Accessed 6 Sep. 2024].
2. ‌Radioreference.com. (2020). MWARA – The RadioReference Wiki. [online] Available at: https://wiki.radioreference.com/index.php/MWARA [Accessed 6 Sep. 2024].‌