SignalsEverywhere: Decoding Inmarsat EGC and AERO ACARS

On his latest video Corrosive from the SignalsEverywhere YouTube channel discusses Inmarsat LES EGC and AERO ACARS decoding. Inmarsat is a satellite provider that has multiple geosynchronous satellites that can be received from almost anywhere in the world at around 1.5 GHz with an RTL-SDR and appropriate antenna + LNA. Inmarsat EGC and AERO are two channels on Inmarsat satellites that can easily be decoded.

The Enhanced Group Call (EGC) messages typically contain text information such as search and rescue (SAR) and coast guard messages as well as news, weather and incident reports. AERO messages on the other hand are a form of satellite ACARS, and typically contain short messages from aircraft. More interestingly with a bit of work compiling audio decoders, it is also possible to listen in to AERO C-Channel conversations, which is an emergency phone call service available on some aircraft.

In his video Corrosive gives an overview and demonstration of EGC and AERO reception.

Inmarsat LES EGC and AERO ACARS Decoding

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