misc
Accela Signal
+513
XP
During the KIDS experiment, Tachibana Labs deployed a covert LoRa-like mesh network throughout the hospital infrastructure. Code-named "Accela Signal", these transmissions use Chirp Spread Spectrum modulation to carry data fragments below the detection threshold of conventional receivers.
Your NAVI has intercepted the baseband IQ stream from one of these nodes. The signal contains chirp-modulated frames with encoded data. Analyze the modulation, demodulate the chirps, decode the protocol, and extract the hidden message.
Hint: The stream banner tells you the basics. The rest is signal processing.
Format: ESPILON{flag}
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