Nice write-up! - I strongly recommend looking at dspectrum for those interested in reversing these kind of devices:<p><a href="https://github.com/tresacton/dspectrumgui" rel="nofollow">https://github.com/tresacton/dspectrumgui</a><p>"The goal of this app is to make it trivial to demodulate common RF signals, and provide a digital worksheet for your reverse engineering efforts."