#"acars"

2 articles tagged with ""acars""

ACARS: Reading the Secret Text Messages Planes Send While Flying Over Your House ✈️📡

Aircraft don't just broadcast their position — they send actual text messages to airlines, maintenance crews, and dispatchers in real-time. A $25 USB dongle lets you read every single one. I've been doing this for weeks and I have questions about flight UA447.

Mar 18, 2026

"rf""sdr""wireless"

14 min read

Airlines Are Texting Their Planes and You Can Read Every Message 📡✈️

ACARS is the SMS system airlines have been using since 1978 to communicate with their aircraft. It runs on VHF radio. It broadcasts in plain air. And with a $20 RTL-SDR and free software, I'm now reading actual operational messages between airlines and their planes in real time. Nobody told me this was possible. I'm mildly furious.

Feb 28, 2026