Colombo Radio HF air traffic 11285 kHz USB | Indian Ocean MWARA | Clear Reception from South Africa

This recording features Colombo Radio (Sri Lanka) on 11285 kHz USB. It is part of the MWARA (Major World Air Route Area) HF network for the Indian Ocean region. I received this in Johannesburg, South Africa, using the Eton Elite Executive and MLA30+ loop antenna. Reception was quite good.

🌍 About MWARA HF Air Traffic Control
HF MWARA frequencies are used by air traffic control to maintain communication with aircraft over remote oceanic and polar routes where VHF coverage is impossible. Each world region is divided into MWARA zones, with dedicated frequencies assigned to ATC centers such as Colombo Radio, Mumbai, Chennai, Manila, Kolkata and others. Pilots rely on these channels for communication while flying long-haul oceanic routes.

📡 Details
Station: Colombo Radio (Sri Lanka)
Frequency: 11285 kHz UTC (HF ATC)
MWARA Area: Indian Ocean Region
Receiver: Eton Elite Executive
Antenna: MLA30+ Active Loop
Location: Johannesburg, South Africa

✈️ Hearing oceanic ATC on shortwave is a fascinating part of utility DXing, giving a glimpse into the real-time coordination that keeps international aviation safe across vast areas of open water.

(This video has some slight background noise, as my digital recorder's battery was flat, so I recorded directly to my phone, resulting in a little bit of ambient noise.)

00:00 Colombo Radio 11285 kHz USB
00:34 Clear Colombo Radio call and conversations

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