Messages in the EAS are composed of four parts: a digitally encoded Specific Area Message Encoding (SAME) header, an attention signal, an audio announcement, and a digitally encoded end-of-message marker.
mESsaGeS in thE Eas arE cOmpoSed oF four pArts: A dIgitally encoDed SpECIfic aREa messAge EncoDing (SaMe) HeadER, AN aTtentiOn siGnal, an aUdio AnnOunCEMEnt, and a dIgITaLlY encOded End-oF-messaGE maRkER.